WATER-QUALITY AND SEDIMENT-TRANSPORT … · 2011-02-08 · Chrysophyta, Cryptophyta, Euglenophyta, and Pyrrhophyta in Kenney Reservoir (sites 1 and 2), water years 1985-87 43 20

WATER-QUALITY AND SEDIMENT-TRANSPORT

CHARACTERISTICS IN KENNEY RESERVOIR,

WHITE RIVER BASIN, NORTHWESTERN COLORADO

By Robert L. Tobin and Caroline P. Hollowed

U.S. GEOLOGICAL SURVEY

Water-Resources Investigations Report 90-4071

Prepared in Cooperation with the

COLORADO RIVER WATER CONSERVATION DISTRICT

Denver, Colorado 1990

U.S. DEPARTMENT OF THE INTERIOR

MANUEL LUJAN, JR., Secretary

U.S. GEOLOGICAL SURVEY

Dallas L. Peck, Director

For additional information write to:

District Chief U.S. Geological Survey Box 25046, Mail Stop 415 Federal Center Denver, CO 80225-0046

Copies of this report can be purchased from:

U.S. Geological SurveyBooks and Open-File Reports SectionFederal CenterBox 25425Denver, CO 80225-0425

CONTENTSPage

Abstract--------------- ------- -------- __ _____________ __________ iIntroduction------------------------------------------------------------- 2

Purpose and scope- ---- __-------_-__- -_ ____________________ 4Approach------------------------------------------------------------ 7River-basin characteristics---------- ------------- __-_---__--___ IQHydrology-------- --------- ______________________________________ IQAcknowledgments- ------------ ____________ _________________ _ n

Water-quality characteristics---- ------------------------------- ----- 12Temperature------- ----------------- ------- ____________________ 14Specific conductance------------------------------------------------ 14pH 16Dissolved oxygen and biochemical oxygen demand -------------------- 18Light penetration and turbidity---- ------------------------------- 20General chemical characteristics------------------------------------ 23

Major constituents----- ---- -------- ____________________ 24Nutrients 29Trace constituents------------------------------------------ - 39

Biological characteristics------------------------------------------ 39Phytoplankton 39Bacteria----- ------------------------------------------------ 45

Sediment-transport characteristics-------------- ----------------------- 43Fluvial sediment------------------------------- ------- ---------- 43Sediment retention in the reservoir--------------------------------- 54

Summary and conclusions----------------------------- ---------------- - 50Selected references------------------------------------------------------ 64Hydrologic data---------------------------------------------------------- 67

FIGURES

Page Figure 1. Map showing the White River basin and location

of Kenney Reservoir------------------------------------- 32. Map showing sampling sites for Kenney Reservoir and

the White River 53. Diagram showing major zones in a lake ------------------- 94. Hydrographs showing mean daily discharge at site 3

for water years 1985-87 and at station 09306300 for water years 1973-81--------------------- ___-___-__ n

5. Diagram showing seasonal thermal profiles andcirculation patterns in a temperate zone lake--------- 13

6-26. Graphs showing:6. Water temperature, specific conductance, pH, and

dissolved oxygen at selected depths at site 1 in Kenney Reservoir, water years 1985-87-- ---------- 15

7. Relation of dissolved-solids concentration tospecific conductance in Kenney Reservoir (sites 1 and 2) and the White River (site 3), water years 1985-87 17

8. Water temperature, specific conductance, pH, and dissolved oxygen near the center of Kenney Reservoir, between sites 1 and 2, during a phytoplankton bloom, June 19, 1987------ --- -- 18

iii

Page Figures 6-26. Graphs showing--Continued:

9. Daily values and ranges of biochemical-oxygen demand (BOD) in Kenney Reservoir (site 1) and the White River (site 3), water years 1985-87 21

10. Secchi-disk measurements, sites 1 and 2 in KenneyReservoir, water years 1985-87- ------------------ 22

11. Relation of turbidity and suspended-solids concentra tions to Secchi-disk measurements in Kenney Reser voir (sites 1 and 2), water years 1985-87 23

12. Relation of suspended-solids concentrations toturbidity in Kenney Reservoir (sites 1 and 2),water years 1985-87 24

13. Relations of dissolved-solids concentrations and percent composition of major ions, combined for sites in Kenney Reservoir (sites 1 and 2) and the White River (site 3), to water discharge measured at site 3, water years 1985-87 28

14. Concentrations of ammonia as nitrogen in Kenney Reservoir (sites 1 and 2) and the White River (site 3), water years 1985-87 34

15. Concentrations of nitrite plus nitrate as nitrogen in Kenney Reservoir (sites 1 and 2) and the White River (site 3), water years 1985-87 35

16. Concentrations of organic nitrogen in KenneyReservoir (sites 1 and 2) and the White River(site 3), water years 1985-87 36

17. Concentrations of phosphorus in Kenney Reservoir (sites 1 and 2) and the White River (site 3), water years 1985-87 37

18. Cell counts and relative composition of theBacillariophyta, Chlorophyta, and Cyanophyta inKenney Reservoir (sites 1 and 2), water years1985-87 42

19. Cell counts and relative composition of theChrysophyta, Cryptophyta, Euglenophyta, andPyrrhophyta in Kenney Reservoir (sites 1 and 2),water years 1985-87 43

20. Maximum and minimum values of diversity index for all samples of phytoplankton collected in Kenney Reservoir, water years 1985-87------------------- 45

21. Concentrations of fecal coliform and fecalstreptococci bacteria collected at the 2-footdepths in Kenney Reservoir (sites 1 and 2),water years 1985-86 47

22. Relations of suspended-sediment loads to water discharge for three hydrologic seasons in the White River (site 3), water years 1983-87 49

23. Relations of annual suspended-sediment loads to annual water discharge for the White River at site 3 (water years 1983-87) and at station 09306300 (water years 1973-81) 53

IV

Page Figures 6-26. Graphs showing--Continued:

24. Percent retention of suspended solids in KenneyReservoir computed from a comparison of data nearthe inlet (site 2) and at the dam (site 1) for arange of water discharge, water years 1985-87------ 55

25. Mean daily suspended-sediment loads and mean daily water discharge in the White River at site 3 and estimated mean daily suspended-solids loads discharged from Kenney Reservoir at site 1, water years 1985-87 56

26. Volume displacement and percent loss of originalreservoir capacity from annual suspended-sediment loads to Kenney Reservoir as estimated from data collections during 1985-87 and methods of Brune (1953) and Churchill (1948) 59

TABLESPage

Table 1. Site information and general data-collection information,Kenney Reservoir and the White River-- -------------------- 6

2. Theoretical hydraulic residence time and capacity-inflowratios for Kenney Reservoir--------------------- ---------- 7

3. Chemical criteria used to classify water types andhardness---------------------------------------------------- 25

4. Concentrations of major constituents in Kenney Reservoir,site 1, water years 1985-87 26

5. Concentrations of major constituents in Kenney Reservoir,site 2, water years 1985-87 26

6. Concentrations of nitrogen, phosphorus, and organiccarbon in Kenney Reservoir, site 1, water years 1985-87----- 30

7. Concentrations of nitrogen, phosphorus, and organiccarbon in Kenney Reservoir, site 2, water years 1985-87----- 32

8. Concentrations of trace constituents in Kenney Reservoir,site 1, water years 1985-87 40

9. Size distributions of bedload and suspended sediment inthe White River at site 3, water years 1984-87 52

10. Examples of computations of volume displacement from sedimentloads to Kenney Reservoir----------------------------------- 58

11. Water-quality data for selected depths in KenneyReservoir, site 1, water years 1985-87---------------------- 68

12. Water-quality data for selected depths in KenneyReservoir, site 2, water years 1985-87---------------------- 74

13. Selected water-quality data for near-surface and near-bottomdepths in Kenney Reservoir, site 1, water years 1985-87----- 77

14. Selected water-quality data for near-surface and near-bottomdepths in Kenney Reservoir, site 2, water years 1985-87----- 78

15. Taxa, numbers, and percent composition of phytoplankton at sites 1 and 2 in Kenney Reservoir, water years 1985-87 79

CONVERSION FACTORS

Multiply

acreacre-foot (acre-ft)acre-foot per year (acre-ft/yr)cubic foot per second (ft3/s)foot (ft)inch (in)mile (mi)square mile (mi2 )tonton per day

By

0.40471233.61233.6

0.028320.304825.41.6092.5890.90740.9074

To obtain

hectare cubic meter cubic meter per year cubic meter per second metermillimeter (mm) kilometer square kilometer metric ton or megagram metric ton or megagram per

day

Temperature in degree Celsius (°C) may be converted to degree Fahrenheit (°F) by using the following equation:

°F=9/5(°C)+32.

The following terms and abbreviations also are used in this report:

biochemical oxygen demand (BOD) cells per milliliter (cells/mL)colonies per 100 milliliters (col/100 mL)microgram per liter (pg/L)microsiemens per centimeter at 25 degrees Celsius (pS/cm)milligram per liter (mg/L)milligram per liter per day [(mg/L)/d]millimeter (mm)millimeter of mercury (mm of Hg)nephelometric turbidity unit (NTU)

National Geodetic Vertical Datum of 1929 (NGVD of 1929): A Geodetic datum derived from a general adjustment of the first-order level nets of both the United States and Canada, formerly called "Sea Level Datum of 1929."

VI

WATER-QUALITY AND SEDIMENT-TRANSPORT CHARACTERISTICS IN KENNEY RESERVOIR, WHITE RIVER BASIN,

NORTHWESTERN COLORADO

By Robert L. Tobin and Caroline P. Hollowed

ABSTRACT

The construction of Taylor Draw Dam and filling of Kenney Reservoir during 1984 were done in response to increased water-management needs in northwestern Colorado. To evaluate possible processes and changes that may occur in the reservoir after filling and the effects of sediment transport to the reservoir, physical, chemical, and biological data needed to be collected to define seasonal variations in vertical and areal water-quality character istics. Physical, chemical, and biological data collected during the first 3 years of reservoir operation (1985-87) are presented and summarized for two sites in Kenney Reservoir. Related water-quality data and sediment character istics during 1983-87 are summarized for one site on the White River about 8 miles upstream from the reservoir. Data from the three sites were compared for changes in water-quality characteristics that were caused by impoundment. In addition, fluvial sediment loads were determined for the White River upstream from the reservoir for 1983-87, and sediment retention in the reservoir was estimated. During 1983-87, the mean annual discharge in the White River (site 3) was about 174 percent of the mean annual discharge for the period of record (1973-81) at a discontinued streamflow-gaging station near the present dam site.

Changes in water temperature, specific conductance, pH, and dissolved oxygen with depth were measured at the dam (site 1) and near the reservoir inlet (site 2). Some thermal stratification developed during summer when temperatures at site 1 generally decreased 3 to 5 °C from the surface to the bottom. Maximum surface temperatures in the reservoir were 23.8 °C at site 1 and 24.4 °C at site 2. Surface temperatures in the reservoir during summer were similar to temperatures measured in the White River at site 3 during summer.

Specific-conductance values in the reservoir were similar to values in the White River and ranged from 374 to 932 microsiemens per centimeter. Except during a phytoplankton bloom in June 1987, values of pH generally ranged from 7.4 to 8.8, and concentrations of dissolved oxygen generally ranged from 2.3 to 10.1 milligrams per liter. Values of pH that exceeded 9.0 and concentrations of dissolved oxygen that exceeded 200 percent saturation were measured in near-surface waters that contained concentrated growths of phytoplankton in June 1987. Values of pH and dissolved oxygen decreased with depth in summer. Light penetration and turbidity values indicated increasing water clarity from the inflow end of the reservoir to the dam as suspended solids settled in the reservoir.

Water in the reservoir and in the White River was a hard to very hard calcium bicarbonate type during high runoff and a very hard calcium magnesium sulfate bicarbonate type during low flow. A change in ionic composition to a mixed cation sulfate type is predicted during extremely low-flow conditions when specific-conductance values exceed 1,000 microsiemens per centimeter. Concentrations of nitrogen and phosphorus were greatest during spring runoff, least in periods of low flow, and were sufficient to support nuisance phytoplankton growths. Concentrations of ammonia as nitrogen were as much as 0.13 milligram per liter during summer in near-bottom depths at the dam. Concentrations of 22 trace constituents generally were less than maximum recommended concentrations established by the State of Colorado for cold-water biota.

A total of 210 phytoplankton species from 7 phyla were identified in Kenney Reservoir. Phytoplankton were mostly bacillariophyta (diatoms) and chlorophyta (green algae) in 1985-86 and cyanophyta (blue-green algae) in 1987. Cell counts increased from the inflow site to the dam site. Except for an algae bloom in June 1987, a maximum combined cell count (unrounded value) of greater than 15,000 cells per milliliter occurred in a composite sample at the dam in July 1986. In June 1987, a phytoplankton bloom that had cell counts of 71,000 cells per milliliter and that consisted mostly of the dinoflagellate, Peridinium biceps, developed in the reservoir. Similar blooms may occur in the future when concentrations of nutrients are large and when inflow to the reservoir during summer is low. Bacteria concentrations ranged from less than 2 to 1,100 colonies per 100 milliliters. Ratios of fecal coliforms to fecal streptococci generally were less than 1.0.

Suspended-sediment loads at the White River upstream from the reservoir during 1983-87 ranged from 391,000 to 1,570,000 tons per year. Bedload was less than 1.2 percent of the suspended-sediment load. Sediment retention in Kenney Reservoir was estimated to range from about 91 to about 98 percent. Calculations for estimated volume displacement resulting from sediment deposition during 1985-87 ranged from about 1.8 to about 5 percent of the original capacity of the reservoir per year.

INTRODUCTION

During 1984, Kenney Reservoir was constructed in the White River basin in northwestern Colorado (fig. 1). The reservoir, which has a small capacity (13,800 acre-ft), is located on the White River about 8 mi northeast of Rangely. The name of the reservoir originally was proposed to be Taylor Draw Reservoir but later was renamed Kenney Reservoir after the completion of Taylor Draw Dam. The dam is a reinforced earth type and has a spillway capacity of 65,300 ft 3/s at a crest elevation of 5,317.5 ft. A second outlet that has a capacity of 1,700 ft 3/s is provided through an intake orifice near the reservoir bottom at 5,270 ft. When the reservoir is full, the surface area is 615 acres and the maximum depth near the dam is about 50 ft.

The construction of Taylor Draw Dam and filling of Kenney Reservoir were done in response to increased water-management needs in northwestern Colorado. The main purposes of the reservoir were to provide local water supply, recreational use, and potential hydroelectric production. Secondary purposes included flood control and stream water-quality improvement.

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In late 1984, the U.S. Geological Survey, in cooperation with the Water Users Association No. 1 in the Colorado River Water Conservation District, began a reconnaissance of Kenney Reservoir. Because the study began when the reservoir was being filled, an opportunity existed to determine baseline water-quality conditions that can be used for future comparison. The reliability of estimating future water quality of the reservoir based on possible nonsteady-state conditions during the filling period was considered in the study. Although Kenney Reservoir is expected to have a fast flushing (flow-through) rate in late spring when streamflow in the White River is large, the hydraulic residence time will increase because of decreased inflow during late summer and fall and during low-flow years. During these periods of decreased inflow, the reservoir may develop thermal stratification and zones of decreased concentrations of dissolved oxygen. Related chemical and biological characteristics may change with depth and in bottom sediments, which may deleteriously affect reservoir uses. To evaluate these processes and changes and the effects of sediment transport to the reservoir, physical, chemical, and biological data were necessary to define seasonal variations in vertical and areal water-quality characteristics.

The objectives of the study were to: (1) Describe the physical, chemical, and biological characteristics within the reservoir during the first 2 years after filling; (2) compare these water-quality characteristics with characteristics in the White River at a site about 8 mi upstream from the reservoir to determine effects of impoundment; and (3) describe the quantity and characteristics of fluvial-sediment movement in the White River upstream from the reservoir during 1983-87 and estimate the sediment retention of the reservoir during 1985-87. In 1987, the study and data collection were extended 1 additional year to document the water-quality effects in the reservoir from an unexpected phytoplankton bloom that occurred during the early summer of 1987. This extension also provided an opportunity to enhance the sediment data base for the White River with data collected in 1987, a low- runoff year compared with 1983-86.

Purpose and Scope

This report describes the physical, chemical, and biological character istics of the water impounded in Kenney Reservoir and compares these water- quality characteristics to the inflow water from the White River. The report also describes the quantity and characteristics of fluvial-sediment movement in the White River upstream from the reservoir at site 3 during 1983-87 and presents estimates of the sediment retention in the reservoir during 1985-87. Three years of hydrologic data collected during 1985-87 from two sites in Kenney Reservoir are presented, and hydrologic data from one site on the White River about 8 mi upstream from the reservoir during 1985-87 are summarized. Site locations and general data-collection information are shown in figure 2 and are listed in table 1.

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Table 1. Site information and general data-col lection information, Kenney Reservoir and the White River

[M, monthly; , data not collected; Q, quarterly; SA, semiannually]

General data-collection information

Group nomenclature

Properties and constituents

Approximate sampling frequency

1Site 2 Site 2 3Site 3

Profile and onsite measurementsTemperatureSpecific conductance (SC)pHDissolved oxygen (DO)Secchi disk

CationsCalcium (Ca) , magnesium (Mg)Potassium (K) , sodium (Na)

AnionsAlkalinity (CaC03 ), chloride (Cl)Fluoride (F) , sulfate (S04 )

NutrientsNitrite plus nitrate (N02+N03 )Ammonia (NHs)Organic nitrogen (Org N)Phosphorus (P)Organic carbon (Org C)

Trace constituentsAluminum (Al), antimony (Sb)Barium (Ba) , beryllium (Be)Cadmium (Cd) , chromium (Cr)Cobalt (Co), copper (Cu)Iron (Fe)Lead (Pb) , lithium (Li)Manganese (Mn) , mercury (Hg)Molybdenum (Mo), nickel (Ni)Selenium (Se) , silver (Ag)Strontium (Sr) , zinc (Zn)

Biological and physicalPhytoplankton, bacteriaBiochemical oxygen demand (BOD)TurbiditySuspended solidsSuspended sedimentSediment bedload

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1Kenney Reservoir at dam near Rangely (U.S. Geological Survey station number 400628108424601).

2Kenney Reservoir near inlet near Rangely (U.S. Geological Survey station number 400851108422701).

3White River below Boise Creek, near Rangely (U.S. Geological Survey station number 09306290).

Approach

Sampling in Kenney Reservoir was designed to measure the vertical and lateral differences in water-quality characteristics that occurred in the reservoir during spring, summer, and fall. Samples collected from site 1 near the dam (fig. 2) were from the deepest (40 to 50 ft) part of the reservoir. Water-quality characteristics at this site represented reservoir water that generally had a maximum residence time for given inflow rates (table 2).

Site 2 near the inlet was established in the north end of the reservoir where the White River enters Kenney Reservoir. Water depth at this site originally was measured at 14 ft in April 1985. Subsequent measurements of depths after the spring runoff in 1985 generally were 10 ft or less. In 1987, measurements of depth at site 2 ranged from 4 to 6 ft. Decreases in depth at this site were attributed to suspended-sediment deposition and redistribution of sediment from the White River. Water-quality characteristics at site 2 represented water that generally had a residence time in the reservoir of less than 24 hours.

Table 2.--Theoretical hydraulic residence time and capacity- inflow ratios for Kenney Reservoir

[ft3/s, cubic feet per second; acre-ft, acre-feet]

Inflow-

outflow discharge (ft 3 /s)

100200300400500

600700800900

1,000

2,0003,0004,0005,0006,0007,000

Discharge, log base 10

(ft 3 /s)

2.00002.30102.47712.60212.6990

2.77822.84512.90312.95423.0000

3.30103.47713.60213.69903.77823.8451

Annual discharge (acre-ft)

72,450144,900217,350289,800362,250

434,700507,150579,600652,050724,500

1,449,0002,173,5002,898,0003,622,5004,347,0005,071,500

Approximate residence

time (days) 1

7035231714

129.98.77.77.0

3.52.31.71.41.2.99

Capacity- inflow ratio 2

0.190.095.063.048.038

.032

.027

.024

.021

.019

.010

.006

.005

.004

.003

.003

Approximate residence time, in days, is equal to the reservoir capacity (13,800 acre-ft) divided by the sum of 1.98 times the inflow-outflow discharge.

2 Capacity-inflow ratio is equal to the reservoir capacity (13,800 acre-ft) divided by annual discharge.

In addition to the two reservoir sites, the U.S. Geological Survey streamflow-gaging station 09306290, White River below Boise Creek, near Rangely was established as site 3. Site 3 is about 8 mi upstream from Kenney Reservoir (fig. 2). All hydrologic data used in this report were obtained from the U.S. Geological Survey WATSTORE (Hutchison, 1975) computer data base.

Profile measurements of water-quality properties and constituents and sample collections for chemical, biological, and physical analyses were made in the reservoir using a submersible pump that continuously delivered water from any depth to a multiprobe manifold at the water surface. The manifold housed probes that measured temperature, specific conductance, pH, and dis solved oxygen. Water samples could be withdrawn at any depth for laboratory analysis. Except at the manifold discharge point, water movement within the entire system remained isolated from atmospheric effects. Oxygen consumption because of indigenous processes that occur within the reservoir (sites 1 and 2) and in the White River (site 3) were estimated from 5- and 20-day natural biochemical-oxygen-demand (BOD) analyses. Incubations for the BOD analyses were processed from iced samples within 12 hours of sample collection.

Light penetration in the reservoir was measured using a standard Secchi disk. The average extinction depth of several observations was used. This value approximates the depth that receives 5 percent of the surface light intensity (Yoshimura, 1938). Major zones in a lake or reservoir based on a combination of light penetration, biology, and morphology are shown in figure 3.

Assessments of general water chemistry are based on laboratory data for periodic samples of major constituents, nutrients, and trace constituents. Samples were taken from near-surface and near-bottom depths at sites 1 and 2 in the reservoir and from depth composites at site 3 in the White River.

Point samples for phytoplankton (algae) identification, biomass, and chlorophyll analyses were collected from depths of maximum dissolved-oxygen saturation (usually 2 ft). Because oxygen is a by-product of photosynthesis, data from these depths generally should represent zones of maximum phyto plankton activity. A second sample that consisted of a composite of water from the euphotic zone (fig. 3) at site 1 and the general water column at site 2 also were analyzed. These analyses were done to describe the general phytoplankton population in the reservoir. The base of the euphotic zone generally is estimated by multiplying the Secchi-disk depth by a factor of 2.5 to 5.0 (Verduin, 1956). However, factors that ranged from 3.0 to 6.0 at site 1 were used where Secchi-disk depths were between 20 and 40 in., and factors that ranged from 2.0 to 4.0 were used where Secchi-disk depths were greater than 40 in. Samples, from water surface to a depth of 10 ft at site 1, were composited when Secchi-disk depths were less than 20 in. All phytoplankton and chlorophyll samples were analyzed by a private laboratory. Concentrations of chlorophylls a, Jb, and c were determined except where large concentrations of suspended material interfered with the analyses.

The presence of sanitary-indicator bacteria, total and fecal coliform, and fecal streptococci also were determined during 1985-86 from near-surface and near-bottom depths at both sites in Kenney Reservoir. Incubations for the bacteria analyses were processed from iced samples within 12 hours of sample collection. All samples for chemical and biological laboratory analyses were

Littoral zone

Limnetic zone

Euphotic zone

Compensation level

Profundal zone

Benthic zone

EXPLANATION

Shallow water area that has sufficient light to support attached vegetation

Open water area where base is defined by the 1-percent light-intensity level

The combined littoral and limnetic zones

Level at which oxygen production equals oxygen uptake

Zone of deep water where the light intensity is less than 1 percent of the surface light. Little or no photosynthesis occurs in this zone

Lake bottom

Figure 3.--Major zones in a lake (modified from Britton and others,1975, p. 3).

collected, preserved, and analyzed in accordance with standard procedures of the U.S. Geological Survey (Brown and others, 1970; Goerlitz and Brown, 1972; Fishman and Friedman, 1985; Britton and Greeson, 1989).

Estimates of annual sediment load transported by the White River are based on streamflow and suspended-sediment and bedload-sediment data for water years 1983-87 collected at site 3 on the White River. Samples of suspended sediment were collected using depth-integrated techniques from equal stream- width increments. Bedload was collected at equal-width increments using a Helley-Smith sampler (Emmett, 1980). Sediment-collection techniques and laboratory analyses used in this study are summarized in Guy (1969) and Guy and Norman (1970).

River-basin Characteristics

The White River basin in northwestern Colorado (fig. 1) includes most of Rio Blanco County and parts of Moffat and Garfield Counties. The drainage area of the White River at Taylor Draw Dam (fig. 2) is 2,773 mi2 . Surface rocks in the basin consist mostly of sedimentary rocks that range in age from Paleozoic in the east to Mesozoic and Cenozoic in the central and western parts of the basin. The headwaters of the White River originate in the high mountains of the White River uplift in eastern Rio Blanco and Garfield Counties. The river flows from an alpine climate westward through transi tional climates near Meeker and into a semiarid climate in western Rio Blanco County. Near Rangely, the White River enters Utah and joins the Green River. Ranching, agriculture, recreation, and energy development are the primary land uses in the basin. A general discussion of the White River basin is presented in Boyle and others (1984).

Hydrology

Precipitation in the basin ranges from 9 in. in western Rio Blanco County to 22 in. in eastern Rio Blanco County. Most precipitation occurs as winter snow and summer thunderstorms. Discharge in the White River occurs princi pally from snowmelt during spring and early summer (fig. 4). Occasional, intense thunderstorms may temporarily increase flow and sediment loads in the White River during summer.

Streamflow extremes for 1910-1987 (U.S. Geological Survey, 1988) indicate that maximum discharges measured at streamflow-gaging stations in the White River occurred during snowmelt runoff in 1983 and 1984 when Taylor Draw Dam was under construction. A maximum discharge for site 3 of 6,440 ft3/s was recorded in June 1984. A minimum daily discharge in the lower White River basin of 62 ft3/s was recorded immediately downstream from the reservoir at the discontinued U.S. Geological Survey streamflow-gaging station 09306300 in July 1977 (U.S. Geological Survey, 1982). Station 09306300, White River near Rangely, was at the present dam site and was discontinued in 1982 when con struction of the dam began. The mean annual discharge at station 09306300 for the period of record, water years 1973-81, was 633 ft3/s or about 460,000 acre-ft. The mean annual discharge at site 3 for the period of record, water years 1983-87, was 1,099 ft3/s or about 796,000 acre-ft. Mean daily discharge at site 3 for the period of reservoir operation (1985-87) and mean daily

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Site 3, White River below Boise Creek, near Rangely, water years 1985-87

Station 09306300, White River above Rangely, water years 1973-81

OCT NOV DEC JAN FEB MAR APR

MONTHMAY JUNE JULY AUG SEPT

Figure 4.--Mean daily discharge at site 3 for water years 1985-87 and at station 09306300 for water years 1973-81.

discharge at station 09306300 (1973-81) are shown in figure 4. Using a capacity of 13,800 acre-ft for Kenney Reservoir, the theoretical hydraulic residence times and capacity-inflow ratios for the reservoir at various river discharges are listed in table 2. Residence-time calculations assume complete mixing and no thermal stratification within the reservoir. During periods of thermal stratification, however, temperatures of inflowing water will affect the allocation of the incoming river water within the reservoir. Thus, the residence times within different thermal zones may be considerably different from the values listed in table 2.

Acknowledgments

The authors thank Bill Murry and John (Hoot) Gibson of Water Users Association No. 1 in the Colorado River Water Conservation District for their assistance in collecting samples. The authors also thank Jim Geyler of Water Users Association No. 1 for supplying equipment throughout the study period.

11

WATER-QUALITY CHARACTERISTICS

Spatial and temporal changes in water quality often occur in lakes and reservoirs. Although this report is about a reservoir, the term "lake" more commonly is used in general literature and, therefore, sometimes is used in this report where discussing general properties and processes. Many of the explanations for water-quality characteristics presented in this report for Kenney Reservoir represent phenomena known to occur in lakes and reservoirs and are the likely reasons for the observed conditions. However, newly con structed reservoirs characteristically undergo dynamic change in water quality during, and immediately after, the reservoir is filled. A new equilibrium condition in regard to its hydrologic, sediment, nutrient, and other properties usually is not achieved immediately. The filling water inundates the reservoir basin, causing sediments and other materials to enter the water column and undergo chemical and biological reactions and interactions. An enhanced biological productivity often occurs, which can cause tastes and odors, clog intake screens in water-treatment plants, produce slime conditions, and be toxic to animals (Palmer, 1977). Eventually, however, the water body will reach an equilibrium state and exhibit relatively stable water quality. Given the postconstruction sampling period for Kenney Reservoir, therefore, the water-quality and trophic characteristics measured during this study will not necessarily describe the conditions likely to exist over the long term, even considering the relatively rapid flushing rate of the reservoir.

Although many physical and biological variables are involved, changes in water quality occur most noticeably when solar heating during summer causes nonuniform water-temperature distributions to develop within the impounded water. Temperature not only controls the rate of chemical and biological processes, but also, because the density of water is a function of temperature (water is densest at approximately 4 °C), nonuniform temperature (thermal) distribution in water is the primary cause of most stratification in lakes and reservoirs. A less common form of stratification can occur when large concen trations of dissolved solids that increase water density become nonuniformly distributed within a lake. Depending on wind conditions, reservoir morphology, hydraulic residence time, and release patterns at the dam, various forms of thermal stratification may develop. Summer thermal stratification commonly is characterized by (1) an upper zone of uniformly warm water (epilimnion), (2) an intermediate zone of transition where temperature decreases rapidly with depth (metalimnion), and (3) a lower zone of uniformly cold water (hypolimnion). The thermocline, as defined by Wetzel (1983), is the maximum rate of change of temperature with depth. The seasonal thermal profiles and circu lation patterns of a temperate-zone lake are shown in figure 5. Hutchinson (1957) termed lakes that circulate twice a year in this manner as dimictic. Kenney Reservoir is an example of a dimictic lake.

When thermal stratification is stable, the various metabolic activities of aquatic animals, phytoplankton, plants, and bacteria can alter and recycle dissolved gases, nutrients, and other chemical constituents. As these activ ities progress, the thermocline acts as a barrier between the upper warm- water zone and the lower cold-water zone, decreasing the exchange of heat and dissolved substances and, also, acts as a biological barrier that affects the movement and dispersal of many aquatic organisms. As a result, water zones that have different chemical characteristics may develop. The environments of these physical, biological, and chemical zones are discussed in Hutchinson (1957) and Odum (1971).

12

WIND DIRECTION

EXPLANATION

- - - THERMAL PROFILE 9

DIRECTION OF CIRCULATION

10 20

DEGREES CELSIUS

30

Figure 5.--Seasonal thermal profiles and circulation patterns in a temperate zone lake (modified from Britton and others, 1975, p. 4)

13

Data for onsite measurements of temperature, specific conductance, pH, and dissolved oxygen were collected continuously with depth at sites 1 and 2. Data for these profiles are presented for selected depths in tables 11 and 12 in the "Hydrologic Data" section at the back of the report. In addition, selected water-quality data for near-surface (2 ft) and near-bottom depths at sites 1 and 2 are listed in tables 13 and 14 in the "Hydrologic Data" section.

Temperature

Water temperature from profiles in Kenney Reservoir (tables 11 and 12 in the "Hydrologic Data" section) ranged from 0 °C during winter to 23.8 °C at site 1 during summer, and the maximum water temperature was 24.4 °C at site 2 during summer. Measurements of water temperature for selected depths at site 1 are shown in figure 6. During water years 1985-87, measured water temperatures in the White River at site 3 ranged from 0 to 24.0 °C. Although these data represent instantaneous measurements in time and cannot be compared directly, it seems that the range in temperature of the near-surface water in the reservoir and the White River at site 3 were similar.

During summer, water temperature at site 1 generally decreased 3 to 5 °C with depth (fig. 6). Because water density increases with decreasing water temperature for temperatures above 4 °C, some thermal stratification developed in the reservoir from May through September during the study period. The possible causes for the decreases in temperature with depth were:

1. The disproportionately large absorption of solar radiation by near- surface water when compared with the decreased penetration and absorption of solar radiation by water at depth; and

2. The routing of inflow water within the reservoir to depths or zones that had water temperature similar to the existing temperature of the inflows. Thus, inflow from the White River that enters the reservoir in the early morning, when stream temperatures are cool compared with afternoon tem peratures, may remain and pass through the reservoir at depth.

The temperature differences that develop between near-surface and near- bottom water in the reservoir, the time that stratification stability exists during summer, and the warming of near-surface water may be expected to increase as inflow to the reservoir decreases and as the residence time of the inflowing water increases.

Specific Conductance

Specific conductance is a measure of the ability of water to conduct an electric current and is reported in microsiemens per centimeter at 25 degrees Celsius. Specific conductance can be used to estimate the dissolved-solids concentration of similar water types (Hem, 1985, p. 67). Chemical, hydro- logical, and biological activities continuously alter specific conductance through chemical solution or precipitation, dilution and evaporation, and metabolic uptake and release of chemicals.

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Except for the first measurements in January 1985, specific conductance from profiles in Kenney Reservoir (tables 11 and 12 in the "Hydrologic Data" section; fig. 6) ranged from 374 to 932 pS/cm. Periodic measurements of specific conductance in the White River at site 3 ranged from 375 to 963 pS/cm during water years 1985-87. The large specific-conductance values (972 and 1,550 pS/cm) measured in January 1985 (table 11 in the "Hydrologic Data" section) near the bottom of the reservoir at site 1 were measured soon after the reservoir filled. These large values were not repeated in subsequent measurements and were attributed to large values of specific conductance from residual ground-water seepage (Van Liew and Gesink, 1985, p. 20-28) and(or) to leaching of dissolved ions from material associated with the dam construction and reservoir-site preparation.

The data in figure 6 indicate little variation in specific conductance with depth. The slight lateral differences in specific conductance within the reservoir (tables 11 and 12 in the "Hydrologic Data" section) are related to changes in inflow discharge and time of travel within the reservoir. Specific conductance was least during snowmelt runoff in May and June and greatest during low flow in fall and winter.

Using the analysis of covariance test, the ratios of specific conductance to concentrations of dissolved solids for all samples in the reservoir were compared with the ratios of specific conductance to concentrations of dis solved solids for the White River at site 3. The test indicated no differences at the 0.05 level of significance for the range of data. The relation of dissolved-solids concentration to specific conductance in the reservoir and in the White River at site 3 is shown in figure 7. Dissolved- solids concentrations can be estimated from specific-conductance measurements in the reservoir and(or) the White River by using the regression shown in figure 7. However, since the reservoir may not be in a steady-state condi tion, additional measurements of specific conductance and dissolved-solids concentrations need to be done to ensure that this relation can be used as a predictive tool.

pH

Hydrogen ion activity (pH) is a measure of the acid-base characteristics of water. Water that is neutral has a pH of 7.0; however, pH of natural water that contains dissolved constituents commonly ranges from 5.0 to 9.0, and more frequently from 6.5 to 8.5 (Hem, 1985, p. 64). The constituents carbon dioxide (C02 ), bicarbonate (HC03), and carbonate (C03), which account for most alkalinity, greatly affect or buffer pH in natural water (Hem, 1985, p. 106).

Diel shifts in pH can develop in water that has considerable biological production and small ionic concentrations (Alien, 1972). Values of pH may increase to greater than 9.0 when phytoplankton use dissolved C02 and HCOs during photosynthesis. Conversely, diel and seasonal decreases in pH to values less than 7.0 can occur when C02 from decomposition and respiration accumulate in poorly mixed water. If exposure time is sufficient, these environmental changes may be harmful or lethal to some aquatic life (National Academy of Sciences, 1972).

16

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200 400 600 800 1,000 1,200 1,400 1,600

SPECIFIC CONDUCTANCE, IN MICROSIEMENS PER CENTIMETER AT 25 DEGREES CELSIUS

Figure 7.--Relation of dissolved-solids concentration to specific conductance in Kenney Reservoir (sites 1 and 2) and the White River (site 3), water years 1985-87.

Measured values of pH in Kenney Reservoir (tables 11 and 12 in the "Hydrologic Data" section) ranged from 7.4 to 8.8 at site 1 and from 8.2 to 8.6 at site 2. For all depths less than 41 ft at site 1, however, pH ranged from 7.9 to 8.8 (fig. 6). Reservoir data collected from below 40 ft at site 1 represented water from the near-bottom environment. Values of pH in this near-bottom water occasionally were less than 8.0 and decreased several tenths of a pH unit when compared with the overlying water column. These decreases in pH likely were due to the accumulation of C02 and other metabolic waste products that resulted from decomposing organic matter within the benthic zone during periods of thermal stratification and low inflow-outflow discharge. However, because the bottom of newly constructed reservoirs requires time to stabilize, the small pH value of 7.4 measured near the bottom of the reservoir at site 1 in January 1985 probably was not considered representative of reservoir conditions because of construction materials and recent soil dis turbance. During water years 1985-87, measured values of pH at site 3 on the White River ranged from 8.0 to 8.8.

Values of pH at site 1 generally were greatest at or near the reservoir surface. Values of pH changed little with depth at site 2. The pH values at sites 1 and 2 exceeded 8.5 only in water that was supersaturated with respect to dissolved oxygen (tables 11 and 12). The larger pH values (greater than 8.5) were caused by the uptake of C02 and the conversion of HCOs ions to C02 by algae during photosynthesis and related oxygen production. During additional sampling at a selected site near the center of the reservoir on

17

June 19, 1987, a maximum pH of 9.2 was measured at depths of 1 ft or less (fig. 8). The large pH values (greater than 9.0) were associated with dense subsurface growths of phytoplankton that seemed to be confined to depths of less than 1 ft. Values of pH decreased to less than 9.0 below (fig. 8) and laterally (fig. 6, tables 11 and 12) from observed patches of phytoplankton. Except for the biologically active zones near the surface and near the bottom of Kenney Reservoir, ranges of pH values were similar to the range of pH values in the White River (site 3).

Dissolved Oxygen and Biochemical Oxygen Demand

Oxygen dissolves in water to a concentration controlled by the atmos pheric partial pressure of the gas and the temperature and salinity of the water. Concentrations of dissolved oxygen at 100-percent saturation will increase as water temperature decreases and(or) atmospheric pressure increases.

Except for photosynthesis, almost all oxygen transfer to the water occurs at the air-water interface. Because oxygen diffuses very slowly in calm water (Hutchinson, 1957), winds, water turbulence, and currents are major factors in the aeration of a water body.

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SPECIFIC CONDUCTANCE,IN MICRO-SIEMENS PER

CENTIMETER AT 25DEGREES CELSIUS

TEMPERATURE, IN DEGREES CELSIUS DISSOLVED OXYGEN, IN MILLIGRAMS PER LITER

Figure 8. Water temperature, specific conductance, pH, and dissolved oxygen near the center of Kenney Reservoir, between sites 1 and 2, during a phytoplankton bloom, June 19, 1987.

18

Seasonal and daily variations of dissolved-oxygen concentration in a water body are indirect measures of the biological productivity and oxygen demand of the system. If photosynthetic or respiratory activities are great during thermal stratification, separate biological zones can develop and cause vertical and horizontal variation in chemical characteristics. In lakes, the epilimnion typically is a zone of active biomass (phytoplankton) production, marked by nutrient uptake and daytime oxygen production. Where ample nutri ents and light conditions exist, zones of oxygen supersaturation may develop. Conversely, overlying biomass or debris transported by inflowing streams may become deposited in the hypolimnion. As organisms die and settle downward, they are decomposed by bacteria and fungi. During decomposition, nutrients are returned to the water and oxygen is consumed. If large quantities of organic matter are present and there is little or no mixing with the oxygen ated upper water, the dissolved-oxygen concentrations in the water at deeper levels may decrease to zero (anaerobic condition).

The quantity of oxygen consumed by indigenous processes in an isolated water sample confined in the dark at 20 °C for 5 days is termed the 5-day BOD. BOD is an estimated measurement of the biological- and chemical-oxygen demand required by the processes of respiration, decomposition, and chemical oxida tion that occur in the sample.

Except for the zero value for dissolved oxygen near the bottom of the reservoir in January 1985, measured concentrations of dissolved oxygen at sites 1 and 2 in the reservoir (tables 11 and 12 in the "Hydrologic Data" section) ranged from 2.3 to 10.1 mg/L. Although concentrations of dissolved oxygen tended to decrease with depth at site 1, concentrations equal to or greater than 4.0 mg/L were maintained from the reservoir surface to a depth of 35 ft. The decrease in dissolved oxygen to concentrations less than 4.0 mg/L at depths greater than 35 ft may indicate that depletion of dissolved oxygen from respiration and decomposition processes occurred near the bottom of the reservoir. The concentration of 0.0 mg/L for dissolved oxygen in January 1985 may have resulted from residual ground water that collected near the bottom of the reservoir. Concentrations determined in the White River at site 3 during 1985-87 ranged from 7.8 to 12.5 mg/L.

In June 1987, maximum concentrations of dissolved oxygen within the reservoir were measured during a phytoplankton bloom that drifted at depths generally less than 1 ft. A concentration of 14.7 mg/L dissolved oxygen was measured during additional sampling at the 1-ft depth near the center of the reservoir on June 19, 1987 (fig. 8). Measurements of dissolved oxygen within other localized near-surface patches of phytoplankton on June 9 and June 19, 1987, ranged from 14.0 to 18.0 mg/L. These concentrations represented a range of supersaturation of dissolved oxygen from 190 to 240 percent. In addition to the phytoplankton bloom in June 1987, supersaturation of dissolved oxygen from photosynthetic activities occurred occasionally at both reservoir sites (fig. 6; tables 11 and 12 in the "Hydrologic Data" section). Smaller concen trations and ranges of dissolved oxygen, as compared to the concentrations and ranges of saturation of dissolved oxygen measured within the patches of phyto plankton, were measured at sites 1 and 2 (fig. 6; tables 11 and 12 in the "Hydrologic Data" section) and at depths greater than 5 ft directly below the phytoplankton bloom in June 1987 (fig. 8). These differences indicate that the greatly supersaturated conditions of dissolved oxygen (190-240 percent) were limited to water that contained the concentrated growths of phytoplankton,

19

Values of 5-day BOD in Kenney Reservoir ranged from 0.7 to 2.3 mg/L (tables 13 and 14 in the "Hydrologic Data" section). The daily values and ranges of BOD values determined from 20-day incubations for Kenney Reservoir for two depths at site 1 and for the White River at site 3 are compared in figure 9. Although BOD generally was slightly greater in the White River (site 3) than in Kenney Reservoir (fig. 9), one important exception occurred during the phytoplankton bloom in June 1987. Two selected samples collected near the center of the reservoir on June 9, 1987, from the 1-ft depth within localized growths or patches of phytoplankton had 1-day BOD values that were greater than 5.0 mg/L. These values extrapolated to 5-day BOD estimates that were greater than 25 mg/L. Although not representative of the general water column in the reservoir, these large BOD values indicated that rapid respira tion (oxygen consumption) rates from phytoplankton growths can occur in the reservoir. If the biomass from phytoplankton blooms remain in the reservoir, substantial additional BOD may further decrease dissolved-oxygen concentra tions at depth as microbial decomposition of the sinking biomass occurs.

Light Penetration and Turbidity

Nearly all biological activities in a lake depend directly or indirectly on sunlight. Photosynthesis by phytoplankton and other plants is related to the quantity of available sunlight. The depth to which light penetrates a lake is dependent on latitude and season, lake surface area and morphometry, turbidity, phytoplankton characteristics, and the transmitting and absorbing characteristics of the water and its dissolved material.

Turbidity is a qualitative measure of the light reducing or scattering capabilities of the suspended and colloidal matter in water. Where turbidity becomes large and light penetration is decreased, the following conditions may occur: (1) lowered water temperature at depth, (2) decreased photo synthesis and primary production, and (3) disruption of feeding patterns and physiological functions of benthic organisms and fish. Extreme turbidity levels can be directly lethal to some aquatic organisms (McKee and Wolf, 1963, p. 290-21).

Secchi-disk measurements in Kenney Reservoir (tables 13 and 14 in the "Hydrologic Data" section) ranged from 11 to 144 in. at site 1 and from 2 to 46 in. at site 2. A comparison of Secchi-disk measurements (fig. 10) indicates that substantial increases in light penetration (referred to as transparency in tables 13 and 14) occurred from the inlet (site 2) to the dam (site 1). Light penetration generally was least during periods of snowmelt and storm runoff when concentrations of suspended solids were large and greatest during late summer when streamflow and concentrations of suspended materials in the water column were small.

Turbidity, expressed in nephelometric turbidity units (NTU), measured from the 2-ft depths (tables 13 and 14 in the "Hydrologic Data" section) ranged from 1.2 to 45 NTU at site 1 and from 6.0 to 220 NTU at site 2. Turbidity measured in the White River at site 3 ranged from 5.0 to 210 NTU. The pattern of change in turbidity values within the reservoir was similar to the Secchi-disk pattern turbidity decreased and light penetration increased from the inlet to the dam. These relations indicate that light attenuation by phytoplankton in Kenney Reservoir was minimal.

20

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INCUBATION PERIOD, IN DAYS

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Figure 9.--Daily values and ranges of biochemical-oxygen demand (BOD) in Kenney Reservoir (site 1) and the White River (site 3), water years 1985-87.

21

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Figure 10.--Secchi-disk measurements, sites 1 and 2 in Kenney Reservoir, water years 1985-87.

The relation of turbidity and suspended-solids concentrations to Secchi- disk measurements and the relation of suspended-solids concentrations to turbidity (tables 13 and 14 in the "Hydrologic Data" section) were nonlinear. After log transformations of turbidity, suspended-solids concentrations, and Secchi-disk measurements, the relations of turbidity and suspended solids to Secchi-disk measurements were inverse and linear and are shown in figure 11. A positive and linear relation of suspended-solids concentrations to turbidity is shown in figure 12. The large values for the coefficients of determination (r 2 ) (figs. 11 and 12) were obtained because light penetration is closely associated with turbidity and because fine silts and clays that accounted for most of the suspended material in the reservoir were uniformly distributed.

22

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Turbidity= -1.29 (Secchi disk) +2.88 r 2 =0.98

Suspended solids= -1.53 (Secchi disk)+3.27 r 2 =0.86

SECCHI DISK, IN INCHES (LOG BASE 10)

Figure 11.--Relation of turbidity and suspended-solids concentrations to Secchi-disk measurements in Kenney Reservoir (sites 1 and 2), water years 1985-87.

General Chemical Characteristics

The general chemical constituents in natural water are derived mainly from the action of water on soils and rocks (Hem, 1985). Carbon dioxide, derived from the atmosphere or from biological processes, readily dissolves in water, which decreases pH and increases acidity. Chemical constituents in soils and rocks are selectively dissolved into the water in various states of oxidation and ionization. The chemical constituents commonly are grouped as major constituents or ions, nutrients, and trace constituents.

23

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SUSPENDED SOLIDS = 1.16 (TURBIDITY) -0.11 r 2 =0.86

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TURBIDITY, IN NEPHELOMETRIC TURBIDITY UNITS (LOG BASE 10)

Figure 12.--Relation of suspended-solids concentrations to turbidity in Kenney Reservoir (sites 1 and 2), water years 1985-87.

Major Constituents

The most common major ions are listed below.

Cations (positive charge)

Calcium (Ca) Magnesium (Mg) Potassium (K) Sodium (Na)

Anions (negative charge)

Alkalinity (CaC03 ) Bicarbonate (HC03 ) Carbonate (C03 )

Chloride (Cl)Fluoride (F)Sulfate (S04 )

Data for these ions provide a basis for the determination of hardness and the geochemical classifications used in this report (table 3).

24

Table 3. Chemical criteria used to classify water types and hardness

[Water types, modified from Piper and others, 1953, p. 26; hardness, modified from Durfor and Becker, 1964, p. 27]

Water types (milliequivalents per liter)

Hardness

Cations Anions

Bivalent cations; Classifi- calcium and magne- cation sium (milligrams

per liter as CaC03 )

Single cation used when it amounts to 50 percent or more of the total cation equivalents; when the above does not exist, the largest percentages of two cations are used.

Single anion used when it amounts to 50 percent or more of the total anion equivalents; when the above does not exist, the largest percentages of two anions are used.

Soft Moderately

hard---- Hard Very hard-

Less than 60.

61-120.

121-180.More than 180.

The general water quality in the White River at site 3 and in Kenney Reservoir (tables 4 and 5) was determined from milliequivalent conversions of concentrations of cations and anions. The water types changed from a hard to very hard calcium bicarbonate type during high-flow conditions (greater than 3,500 ft3/s) to a very hard calcium magnesium sulfate bicarbonate type during low-flow or base-flow conditions (less than 400 ft3/s). Although not shown, regressions were developed that related concentrations of the major constitu ents to specific conductance for the White River and Kenney Reservoir. Tests for similarity of data at the 0.05 level of significance indicated that the water chemistry for the major constituents was statistically similar at all sites. The relations of the dissolved-solids concentrations and percent composition of major ions to water discharge are shown in figure 13.

25

Table 4.--Concentrations of major constituents

[ft, feet; °C, degrees Celsius; pS/cm, microsiemens per

Date

01/16/8501/16/85

06/04/8506/04/85

09/06/8509/06/85

10/21/8510/21/85

04/24/8604/24/86

06/03/8606/03/86

08/20/8608/20/86

06/19/8706/19/87

09/03/8709/03/87

Time

14301535

12501340

11051155

12351315

12251310

11451230

12251310

13251415

12151305

Sample depth (ft)

247

245

243

240

240

240

240

245

245

Temper ature(°c)

0.05.0

15.810.9

19.117.9

8.58.0

12.09.0

14.712.3

22.019.0

19.614.0

19.516.8

Specific conduct

ance (MS/cm)

7411,550

453430

835932

820828

865870

374403

739756

511531

824825

pH (units)

8.37.4

8.38.3

8.38.1

8.48.4

8.58.4

8.28.2

8.58.2

8.87.8

8.48.1

Calcium, dis

solved (mg/L Ca)

72120

4648

6868

7070

7372

4243

6266

5153

6771

Magne sium, dis solved (mg/L Mg)

2989

1818

3537

3334

3737

1516

3032

2021

3535

Potas sium, dis solved (mg/L K)

1.62.3

1.31.3

2.33.1

2.01.7

1.91.8

1.21.2

1.81.8

1.41.3

1.91.9

Sodium dis solved (mg/L Na)

4882

2122

6264

5758

5658

1618

5052

2828

6360

Alka linity, labora tory (mg/L CaC03 )

187282

129143

198193

195194

212212

123127

183197

150152

192209

Table 5. Concentrations of major constituents

Date

06/04/85

09/06/85

10/21/8510/21/85

04/24/86

06/03/86

08/20/86

06/19/87

09/03/87

Time

1435

1105

14051420

1335

1310

1405

1155

1105

Sample depth (ft)

2

2

210

2

2

2

2

2

Temper ature (°C)

14.4

19.1

8.58.1

11.8

17.0

22.2

17.8

19.0

(ft,

Specific conduct

ance (MS/cm)

456

907

794796

718

389

736

582

814

feet;

PH (units)

8.3

8.5

8.58.4

8.4

8.2

8.4

8.6

8.4

°C, degrees

Calcium, dis solved (mg/L Ca)

47

73

6870

64

43

63

58

66

Celsius

Magne sium, dis solved (mg/L Mg)

18

38

3232

32

15

29

23

36

; MS/cm,

Potas sium, dis solved (mg/L K)

1.4

2.6

1.71.6

1.7

1.2

1.7

1.4

1.7

microsiemens per

Sodium dis solved (mg/L Na)

22

70

5253

45

17

49

34

60

Alka linity, labora tory (mg/L CaC03 )

134

213

192190

186

125

193

166

195

26

in Kenney Reservoir, site 1, water years 2985-87

centimeter at 25 degrees Celsius; mg/L, milligrams per liter]

Chloride, dis solved (mg/L CD

12.027.0

5.25.6

15.018.0

15.015.0

13.013.0

4.24.7

12.012.0

10.010.0

16.014.0

in Kenney

centimeter

Chloride, dis solved (mg/L CD

5.6

17.0

14.014.0

9.9

4.3

12.0

11.0

15.0

Fluoride, dis solved (mg/L F)

0.2.3

.1

.1

.3

.3

.3' .3

.3

.3

.1

.1

.3

.3

.2

.2

.3

.3

Reservoir/

Sulfate, Silica, dis- dis

solved solved (mg/L (mg/L S04 ) Si02 )

190510

9294

220270

230230

240250

7585

170180

110110

220220

1520

1212

1311

1013

1313

1212

1415

1313

1214

site 2, water years

at 25 degrees Celsius

Fluoride, dis solved (mg/L F)

0.2

.3

.3

.3

.2

.1

.2

.2

.3

Sulfate, dis solved (mg/L S04 )

94

240

210210

200

81

170

120

220

; mg/L,

Silica, dis

solved (mg/L Si02 )

12

14

1112

14

12

14

13

11

Solids, sum of constit uents

dissolved (mg/L)

4801,020

273287

534587

534538

560570

240260

450480

320330

530540

2985-87

milligrams

Solids, sum of constit uents

dissolved (mg/L)

281

583

504507

480

250

460

360

530

Hard- Hard- ness, ness noncar- (mg/L bonate CaC03 ) (mg/L

CaC03 )

299666

189194

314322

311315

335332

167173

278297

210219

310320

per liter]

Hard ness (mg/L CaC03 )

192

339

302307

292

169

277

240

310

112384

6051

116129

116121

123120

4446

95100

6067

119112

Hard ness ,

noncar- bonate (mg/L CaC03 )

58

126

110117

106

44

84

74

118

Sodium adsorp tion ra,tio (SAR)

1.01.0

.7

.7

1.51.6

1.41.4

1.01.0

.5

.6

1.01.0

.8

.8

2.01.0

Sodium adsorp tion ratio (SAR)

0.8

1.8

1.31.4

1.0

.6

1.0

1.0

1.0

Percent sodium

2621

1920

3030

2828

2727

1718

2828

2322

3129

Percent sodium

20

31

2727

25

18

28

24

30

27

8^ 600zi. w OCL.

</)=!

200

+

Q UJ

CO(/) CCZ UJgt

gSJ

u.Z

§5

IUU

80

60

40

20

0

100

I'll CATIONS

D ftew.n _n D D [ft D D

^**^D^J D D CALCIUM PLUS MAGNESIUM + SODIUM

_ i$HkX+ * ++ + ^ + +i i i iI I I I A MI/-MUO

o o

UJoCC UJ Q.

uu

80

60

40

20

n

1 1 1 1 ANIONS D ALKALINITY AS CaCO 3

+ SULFATE

!$$&&ocH a

+ + -P i * ° ° !?** § a *1 D =4- ^ ^ + +

-

1 1 1 11,000 2,000 3,000 4,000

WATER DISCHARGE, IN CUBIC FEET PER SECOND

5,000

Figure 13.--Relations of dissolved-solids concentrations and percent composition of major ions, combined for sites in Kenney Reservoir (sites 1 and 2) and the White River (site 3), to water discharge measured at site 3, water years 1985-87.

28

Nutrients

The biological productivity in lakes is dependent on the availability of nutrients within the aquatic system. Those elements that are needed in large quantities for plant growth, such as nitrogen, phosphorus, and carbon, are termed major nutrients or macronutrients. Those elements needed in minute quantities, such as molybdenum and zinc, are termed as trace nutrients or micronutrients.

Although there are several ways for nutrients to enter a lake, most nutrients originate from surface-water inflow and cultural input such as septic-tank discharge. Once in the lake, nutrients are subjected to various removal and(or) recycling functions. Large quantities of nutrients can be removed from the water by chemical reactions, adsorption onto sediment and subsequent deposition, and biological utilization. These processes may be reversed, however, through biochemical action. The conversion of inorganic nutrients into biomass (nutrient removal) within a zone of substantial phytoplankton productivity may be reversed in the profundal zone where nutrients are recycled back into solution as byproducts from decomposition. These processes often produce uneven chemical and nutrient distributions when the lake is stratified.

Attempts to classify lakes into trophic categories commonly are based on the concentrations of macronutrients. Nitrogen and especially phosphorus currently are considered the major nutrients that affect the rate of eutrophication in lakes and reservoirs. Sawyer (1947) states that nuisance phytoplankton conditions can occur when inorganic nitrogen concentrations exceed 0.3 mg/L and phosphorus concentrations exceed 0.01 mg/L.

Vollenweider (1968) compared the input of nitrogen and phosphorus to lake mean depth and determined that shallower lakes are more sensitive to nuisance growth conditions than deeper lakes. A short hydraulic residence time (small capacity-inflow ratio), however, may control phytoplankton production by maintaining rapid flushing rates (Welch, 1969). Various attempts to control the rate and undesirable effects of eutrophication are summarized by Dunst and others (1974).

Nutrient data for Kenney Reservoir are listed in tables 6 and 7; nutrient data for the White River (site 3) for water years 1985-87 were compiled from the U.S. Geological Survey WATSTORE (Hutchison, 1975) computer data base. Concentrations of ammonia, nitrite plus nitrate as nitrogen, and organic nitrogen that were determined for sites 1, 2, and 3 during 1985-87 are shown in figures 14, 15, and 16. The concentrations of phosphorus are shown in figure 17. Concentrations of total organic carbon in the White River (site 3) and near the inlet (site 2) generally ranged from about 2 to 12 mg/L. Concen trations of total organic carbon at site 1 ranged from about 2 to 6 mg/L and generally were less than at sites 2 and 3. Concentrations of total organic carbon at site 3 were greatest during spring runoff; variations in concentra tions of dissolved organic carbon generally were independent of flow.

29

Table 6. Concentrations of nitrogen, phosphorus, and

[ft, feet; mg/L, milligrams per

Date

01/16/8501/16/85

04/24/8504/24/85

06/04/8506/04/85

06/27/8506/27/85

07/19/8507/19/85

08/07/8508/07/85

08/28/8508/28/85

09/06/8509/06/85

09/17/8509/17/85

10/21/8510/21/85

04/24/8604/24/86

06/03/8606/03/86

06/24/8606/24/86

07/22/8607/22/86

08/20/8608/20/86

09/16/8609/16/86

06/09/87

06/19/8706/19/87

07/15/8707/15/87

08/13/8708/13/87

09/03/8709/03/87

Time

14301535

10201110

12501340

13151405

12351325

12351325

12151305

11051155

11351225

'12351315

12251310

11451230

11201205

10551140

12251310

11401225

1300

13251415

15001545

14351520

12151305

Sample depth (ft)

247

245

245

243

245

245

242

243

242

240

240

240

240

240

240

240

2

245

240

240

245

Nitrogen nitrite, dissolved (mg/L N)

<0.01< .01

< .01.01

< .01< .01

< .01< .01

< .01< .01

< .01< .01

< .01.01--

.01

.01

< .01< .01

< .01< .01

< .01< .01

< .01< .01

< .01< .01

< .01.02

< .01< .01

< .01< .01

< .01< .01

< .01.02

< .01< .01

Nitrogen N02+N03 , dissolved (mg/L N)

0.52< .10

.86

.86

.52

.51

.26

.31

< .10.15

.20

.27

.28

.29

--

.32

.35

.38

.39

1.001.00

.28

.32

.15

.18

.28

.21

.19

.25

.24

.21--

< .10< .10

< .10< .10

.18

.16

< .10.12

Nitrogen N02+N03 , total

(mg/L N)

0.5< .1

.8

.9

.5

.5

.2

.3

< .1.1

.2

.3

.3

.3

.3

.4

.3

.4

.4

.4

1.01.0

.3

.3

.2

.2

< .1.2

.2

.3

.22.0

< .1

< .1< .1

< .1< .1

.2

.2

.1

.1

Nitrogen ammonia,

dissolved (mg/L N)

0.042.50

.06

.07

.05

.05

.03

.05

.02

.07

.03

.12

.03

.11

----

.06

.07

.06

.06

.04

.06

< .01.02

< .01.02

.03

.07

.05

.09

.06

.06

--

< .01.01

.02

.06

.03

.09

.02

.09

Nitrogen ammonia , total

(mg/L N)

0.052.60

.06

.07

.05

.03

.05

.06

.03

.09

.04

.11

.04

.12

.05

.13

.04

.05

.06

.06

.04

.04

< .01.02

.02

.02

.03

.06

.04

.10

.05

.05

.11

.02

.04

.02

.07

.03

.10

.01

.08

Nitrogen organic, dissolved (mg/L N)

0.16.00

.44

.73

.25

.25

.27

.25

.18

.33

.37

.38

.27

.29

--

.34

.33

.24

.24

.26

.24

.28

.18

.17

.23

--

--

--

.19

.19----

.87

.71

< .18< .12

30

organic carJbon in Kenney Reservoir, site 1, water years 1985-87

liter; <, less than; --, no data]

Nitrogen organic, total (mg/L N)

0.15.20

.64

.73

.25

.17

.05

.24

.37

.31

.16

.29

.26

.58

.45

.47

.46

.35

.34

.34

.36

.46

.39

.38

.28

.28

.27

.24

.26

.30

.35

.55

4.30

.182.60

.58

.63

.67

.50

.39

.42

Nitrogen, dissolved (mg/L N)

0.722.50

1.361.66

.82

.81

.56

.61

.20

.55

.60

.77

.58

.69

--

.72

.75

.68

.69

1.301.30--.62

.38

.48

.51

--

--

--

.20

.20

--

1.08.96

< .30< .32

Nitrogen, total (mg/L N)

0.702.80

1.501.70

.82

.70

.30

.60

.40

.50

.40

.70

.601.00

.801.00

.80

.80

.80

.80

1.401.50

.70

.70

.50

.50

--.50

.50

.70

.602.60

4.40

.202.60

.60

.70

.90

.80

.50

.60

Phosphorus ortho,

dissolved (mg/L P)

<0.01.01

.02

.02

.02

.02

.02

.02

< .01< .01

.02

.01

.03

.02

--

< .01< .01

.01--

< .01.01

.01

.02

< .01< .01

< .01< .01

< .01.01

< .01< .01

--

< .01< .01

< .01< .01

< .01< .01

.02

.01

Phosphorus ortho, total (mg/L P)

<0.01.02

.02

.02

.02

.02

.02

.04

< .01< .01

< .01< .01

.01

.01

.01

.02

.01

.01

< .01< .01

.02

.02

.02

.02

.02

.03

< .01.02

< .01.02

< .01< .01

.05

--

--

< .01< .01

< .01--

Phos phorus, dissolved (mg/L P)

<0.01.15

.02

.02

.01

.02

.02

.02

< .01< .01

< .01< .01

< .01< .01

--

< .01< .01

< .01< .01

.01

.02

.02

.04

.02

.03

< .01.03

< .01.01

.01< .01

--

.02

.02

.02

.02

.02

.01

< .01.01

Phos phorus, total (mg/L P)

0.01.28

.04

.05

.02

.02

.05

.01

.01

.02

.03

.03

< .01< .01

.01

.05

.01

.02

< .01< .01

.02

.02

.04

.04

.04

.04

.02

.03

.02

.03

.03

.04

.30

.05

.07

.02

.02

.02

.03

.02

.03

Carbon organic, dissolved (mg/L C)

1.85.0

5.85.1

3.23.4

2.83.4

4.23.0

3.23.4

3.13.2

--

4.54.2

3.33.2

4.34.3

4.34.9

3.43.4

3.43.3

3.43.4

3.13.1--

4.74.8

4.23.8

4.14.3

3.33.8

Carbon organic, total (mg/L C)

2.16.2

4.86.0

4.34.7

3.53.6

3.93.6

3.33.6

3.13.4

3.03.8

3.63.6

3.56.7

4.64.7

4.45.1

3.73.6

3.33.6

4.34.7

3.23.4--

3.63.3

4.23.3

4.14.2

4.04.2

31

Table 7. Concentrations of nitrogen, phosphorus, and

[ft, feet; mg/L, milligrams per

Date

04/24/85 04/24/85

06/04/85 06/04/85

06/27/85 06/27/85

07/19/85 07/19/85

08/07/85 08/07/85

08/28/85 08/28/85

09/06/85

09/17/85 09/17/85

10/21/85 10/21/85

04/24/86 04/24/86

06/03/86 06/03/86

06/24/86 06/24/86

07/22/86 07/22/86

08/20/86

09/16/86 09/16/86

06/09/87

06/19/87

07/15/87

08/13/87

09/03/87

Time

1200 1225

1435 1450

1445 1505

1400 1415

1355 1405

1435 1450

1220

1300 1310

1405 1420

1335 '1345

1310 1320

1245 1300

1220 1235

1405

1305 1315

1210

1155

1330

1320

1105

Sample depth (ft)

2 14

2 8

2 13

2 9

27

2 9

2

27

2 10

27

27

2 10

2 10

2

27

2

2

2

2

2

Nitrogen nitrite,

dissolved (mg/L N)

<0.01 < .01

< .01 < .01

< .01 < .01

< .01 < .01

< .01 < .01

< .01 < .01

--

< .01 < .01

< .01 < .01

.01

.02

< .01 < .01

< .01 < .01

< .01 < .01

< .01

< .01 < .01

--

< .01

< .01

< .01

< .01

Nitrogen N02+N03 , dissolved (mg/L N)

1.00 1.00

.51

.50

.34

.34

.10

.13

.25

.28

.34

.35

--

.21

.24

.32

.31

.83

.88

.33

.31

.19

.20

.18

.31

.27

.19

.18

--

< .10

.10

.12

.10

Nitrogen N02+N03 , total

(mg/L N)

1.0 1.0

.5

.5

.3

.3

.1

.1

.3

.3

.3

.4

.4

.2

.2

.3

.3

.9

.9

.3

.3

.2

.2

.2

.2

.3

.2

.2

< .1

< .1

.1

.1

.1

Nitrogen ammonia ,

dissolved (mg/L N)

0.06 .05

.04

.04

.03

.04

.02

.02

.04

.04

.03

.04

--

.05

.05

.05

.05

.06

.07

< .01 < .01

.02

.03

.03

.04

.07

.03

.04

--

< .01

.04

.03

.02

Nitrogen ammonia , total

(mg/L N)

0.05 .05

.03

.05

.05

.06

.04

.05

.04

.04

.02

.05

.05

.06

.06

.08

.04

.05

.08

< .01 .01

.03

.01

.02

.02

.06

< .01 .03

.02

.02

.04

.02

.03

Nitrogen organic,

dissolved (mg/L N)

0.44 .55

.26

.26

.37

.36

.28

.38

.46

.36

.37

.26

--

.35

.35

.35

.25

.34

.33

--

.28

.27

.16

--

--

--

.48

.46

.27

< .18

32

organic carJbon in Keraiey Reservoir, site 2, water years 1985-87

liter; <, less than; , no data]

Nitrogen organic, total (mg/L N)

0.721.55

.17

.25

.25

.34

.36

.25

.26

.36

.48

.55

.45

.44

.44

.32

.36

1.401.70

.49

.49

.37

.29

.28

.38

.34

.39

.37

.88

1.30

1.20

.28

.37

Nitrogen, dissolved (mg/L N)

1.501.60

.81

.80

.74

.74

.40

.53

.75

.68

.74

.65--

.61

.64

.72

.61

1.231.28

--

.49

.50--.51--

--

--

.50

.50

.42

< .30

Nitrogen, total (mg/L N)

1.772.60

.70

.80

.60

.70

.50

.40

.60

.70

.801.00

.90

.70

.70

.70

.70

2.352.68

.80

.80

.60

.50

.50

.60

.70

.60

.60

.90

1.30

1.20

.32

.50

Phosphorus ortho,

dissolved (mg/L P)

0.02.02

.01< .01

.03

.03

< .01< .01

.02

.03

< .01.04--

< .01.01

< .01.01

.01

.01

.02

.02

.02

.02

< .01< .01

< .01

< .01< .01

--

< .01

.01

< .01

.01

Phosphorus ortho, total (mg/L P)

0.02.02

.01

.02

.04

.04

< .01< .01

< .01< .01

< .01.02

.01

.01

.01

.01

.01

.02

.02

.02

.02

.02

.03

< .01.01

.01

< .01< .01

.02--

--

< .01--

Phos phorus , dissolved (mg/L P)

0.01.02

.02

.03

.03

.05

< .01< .01

.01

.01

< .01< .01

.03

< .01.01

< .01< .01

.02

.02

.03

.03

.02

.04

.01

.01

.01

< .01< .01

.10

.02

.02

.01

.01

Phos phorus , total (mg/L P)

0.06.04

.03

.03

.12

.10

.02

.10

.03

.03

< .01< .01

--

.04

.04

.03

.04

.04

.08

.05

.06

.10

.04

.03

.05

.04

.04

.04

--

.08

.04

.02

.02

Carbon organic, dissolved (mg/L C)

4.84.5

3.23.5

3.63.7

4.58.0

4.04.0

3.53.5--

6.94.8

3.23.1

4.64.8

4.34.3

4.53.7

3.63.2

3.8

1.73.5

--

5.0

4.1

4.0

3.8

Carbon organic, total (mg/L C)

6.612.0

4.86.9

6.34.4

4.38.2

2.82.8

3.93.5

3.7

3.84.5

3.02.1--13.0

4.55.5

4.44.1

3.44.2

5.8

3.23.2

--

3.3

4.4

4.1

4.3

33

0.16

0.12

0.08

0.04

0


DISSOLVED

A TOTAL

A AAA A

A «

III I I I I I I I t*l I I I M MA*

M I I* I

CD OjEo.16

Z

<rLJJ t 0.08

<r£j 0.04

<!E n

SITE 1 (near bottom)I I I II I I I I II I I I I I I I M I I I I I I I I II I I I I

A A

~- A» A A

A « A

A A A

A A _ A A _

A

I I I I I I I I I I I I I I I f I M I I I I I I I I I I ! ! I I I

SITE 2 (all depths)Z

zLUUOCC.

Z05^^ZO

U. ID

0.12

0.08

0.04

0

I I I I I I I I I I I M I

_

A

A A AAA AA**

**A * AA*

AM I M I I I I I I II I

I I I I I I M M I I II I I I I

A

AA

A AA A

I I I »*l I 4 M I I I M I l»l I

I I

_

A 1 1

0.16

0.12

0.08

0.04

SITE 3

A

A A

A

I I I I Mill || I I t t I I 1 I 1 4 I + I I I M *l I «MJFMAMJJASONDJFMAMJJASONDJFMAMJJASON

MONTHS

1985 1986 1987

Figure 14. Concentrations of ammonia as nitrogen in Kenney Reservoir (sites 1 and 2) and the White River (site 3), water years 1985-87.

34

O tr

ocLU

IjQC LU Q_

1.60

1.20

0.80

0.40

0

2.00

1.60

1.20

0.80

0.40

0


i i i i i i i i i i i i i i i i i i i i i i i i i i r i i i i i r i DISSOLVED

A TOTAL

'**MM i *i i


i i nil i i i i i i i i i i i i i i i "i i i i i i i i i i i i

i i i i i i i i i i i i i i i i i i i i i i i i i i i iA

*r i P

O OC

1.60

1.20

0.80

0.40

SITE 2 (all depths)

I I I I I 1 IT IT II I I I Tl II IT TT \\\ I I I I I I I I

I I I I I I M I I I I I I I I I I

I w 0

*t I t I I I I I I I I t*t < t IZ> _i Q_LU

g 1.60

1.20

0.80

0.40

SITE 3

I I I I I I * I I I I I I I I I I I 1 I I I I I I i I I M I 1JFMAMJJASONDJFMAMJJASONDJFMAMJJASON

MONTHS

1985 1986 1987

Figure 15.--Concentrations of nitrite plus nitrate as nitrogen in Kenney Reservoir (sites 1 and 2) and the White River (site 3), water years 1985-87.

35


1.60

1.20

0.80

0.40

0

DISSOLVED

A TOTAL

A A A AA A

A _ AAA »A

*% A* « ~f " i i i i i i A" f i i i i i i i i i i T i i i i i i i i i i i i i i i


CC ill Q_(/>

<CC O

1.60

1.20

0.80

0.40

0 L I I I I* *

T I I

« A«£ * AI I I I I I I I I I I I I I I I I I I I I

*111

SITE 2 (all depths)111 (DO ccr~

ZOztnCCO

1.60

1.20

0.80

0.40

n

I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I

_ A _A

A

AA

_ A __

A

t| j|Aij . AAA A A ** 4 A ~

Mil Mill Illllllllflllllllllllllll

SITES

1.60

1.20

0.80

0.40

II T I I I I I I I

A

_

*

i i i i i <* p i i *i r i i i i i i i i i i i i i i i i i i i i i i iJFMAMJJASONDJ FMAMJJASONDJ FMAMJJASON

MONTHS

1985 1986 1987

Figure 16. Concentrations of organic nitrogen in Kenney Reservoir (sites 1 and 2) and the White River (site 3), water years 1985-87.

36

0.50

0.40

0.20


II I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I

DISSOLVED

A TOTAL

4 I I $ I fl«4 *«1«4 I I I I I 4 I $04 4 I I I I I I I I I ! + «

0.50

0.40

0.20

CC LLJ Q_

cn


I MM Mtt ft«f Al» I II I I ! E I I I I I I I I I *P

-j 0.50

0.40

Dg 0.20X Q_

O X

SITE 2 (all depths)

M I I M I I I I I I I I I I I I I M I I I I I I I I I I I I I

A WA

i i i i i fr i fai i i i i i i i i i i ! $

0.70

0.60

0.40

0.20

SITE 3

IIIIIIIIIITMlTMTilT III I T I I I I I I I I

A A

»i »ryttiA4«iJFMAMJJASONDJFMAMJJASONDJFMAMJJASON

MONTHS

1985 1986 1987

Figure 17.--Concentrations of phosphorus in Kenney Reservoir (sites 1 and 2) and the White River (site 3), water years 1985-87.

37

Except for ammonia, concentrations of nitrogen and phosphorus tended to be greatest during spring runoff and least during late summer and fall. At sites 1 and 2, inorganic forms of dissolved and total nitrogen (ammonia and nitrite plus nitrate) and total phosphorus often exceeded the concentration levels of 0.3 mg/L as nitrogen and 0.01 mg/L as phosphorus that are considered sufficient to produce nuisance phytoplankton growths. Dissolved phosphorus concentrations frequently were less than 0.1 mg/L in the White River (site 3) and less than 0.05 mg/L in Kenney Reservoir (sites 1 and 2). Large concen trations of dissolved or total phosphorus (0.2 to 0.62 mg/L) occasionally occurred in the White River during spring runoff.

Concentrations of total and(or) dissolved ammonia generally were greatest in the White River at site 3 (0.01 to 0.12 mg/L) and near the reservoir bottom at site 1 (concentrations commonly ranged from 0.01 to 0.13 mg/L). Except for one sample in June 1987, ammonia concentrations were least (<0.01 to 0.06 mg/L) in samples from the 2-ft depth at site 1. Concentrations of ammonia generally increased several hundredths of a milligram per liter during summer from the 2-ft depth to near-bottom water at site 1. These increases in ammonia concen trations probably were from accumulations of ammonia that were produced from biochemical processes. The concentration of total ammonia of 0.11 mg/L at the 2-ft depth at site 1 on June 9, 1987, probably was a result of increased organic decomposition. The very large concentrations of ammonia (2.5 and 2.6 mg/L) analyzed from samples collected at the 47-ft depth at the dam (site 1) in January 1985 may have resulted from the biological decay of residual organic material on the reservoir bottom shortly after filling and from organic decomposition and subsequent release from sediments during anaerobic conditions in January.

Except for an unexplained concentration of 2.0 mg/L in the bottom sample at site 1 in September 1986, concentrations of dissolved and(or) total nitrite plus nitrate as nitrogen ranged from less than 0.1 to 1.0 mg/L at all sites. Concentrations generally were greatest at all sites during spring runoff and least at sites 1 and 2 during summer and fall. Concentrations of dissolved and(or) total organic nitrogen in the White River (site 3) and reservoir inlet (site 2) ranged from 0.15 to 1.7 mg/L. Except for samples in June 1987, con centrations of dissolved and(or) total organic nitrogen in the reservoir at site 1 (0.00 to 0.87 mg/L) were substantially less than concentrations deter mined in the White River. The decreases of organic nitrogen from site 3 to site 1 may indicate that substantial quantities of total organic nitrogen transported by the White River were removed from the water column as a result of sedimentation processes near the inflow to the reservoir. The large con centrations of total organic nitrogen (4.3 mg/L), total ammonia (0.11 mg/L), and total phosphorus (0.3 mg/L) that were determined at site 1 on June 9, 1987, were from samples that contained large concentrations of phytoplankton.

During spring and early summer 1987, substantial quantities of nitrogen and possibly phosphorus may have entered Kenney reservoir, apparently from sources upstream from site 3 on the White River (figs. 16 and 17). Concen trations of total nitrogen (ammonia, nitrite, nitrate, and organic nitrogen) exceeded 1.5 mg/L, and concentrations of total and(or) dissolved phosphorus were 0.4, 0.3 mg/L, and 0.62 mg/L in samples collected at site 3. The large concentrations of these nutrients that entered the reservoir probably con tributed to the phytoplankton bloom that occurred within the reservoir in June 1987.

38

Trace Constituents

A selected group of 22 trace constituents (table 8) were analyzed from samples collected from the 2-ft and near-bottom depths in Kenney Reservoir at the dam (site 1). The samples were collected during high- and low-flow conditions, and under ice, to determine if concentrations in excess of State- recommended criteria (Colorado Department of Health, 1978) of toxic or undesirable substances were present in the reservoir during 1985-87. Except for the one-time occurrence of concentrations of total recoverable iron and manganese in excess of 1,000 pg/L near the reservoir bottom in January 1985 and the concentrations of total recoverable mercury (as much as 0.2 pg/L), all concentrations of trace constituents were less than the recommended concentrations established by the State of Colorado for cold-water biota.

Concentrations of trace constituents analyzed during 1985-87 from five samples from the White River at site 3 generally were similar to those measured in the reservoir. Concentrations of total recoverable copper, mercury, and zinc tended to be slightly greater in the White River than concentrations determined in Kenney Reservoir.

Biological Characteristics

Biota in lakes and reservoirs are complex and include bacteria, plants (particularly phytoplankton), zooplankton, insects and other invertebrates, and vertebrates such as fish and waterfowl (Hutchinson, 1967; Odum, 1971). The organism distributions and densities vary greatly with season, physical conditions, and nutrient availability. Kenney Reservoir was sampled for phytoplankton and the sanitary-indicator bacteria total and fecal coliform and fecal streptococci.

Phytoplankton

Biological studies of lakes frequently begin with an investigation of the phytoplankton biomass. As the primary producers in the ecosystem of the lake, these organisms are fundamental to biological productivity. The taxonomy or classification of phytoplankton, commonly known as algae, varies somewhat among taxonomists. In this report the following divisions or phyla, taken from Prescott (1970), with modifications of Chrysophyta based on Patrick and Reimer (1966), are used:

Bacillariophyta - diatomsChlorophyta - green algaeCyanophyta - blue-green algaeChrysophyta - golden-brown algaeEuglenophyta - euglenoidsCryptophyta - cryptomonadsPyrrhophyta - dinoflagellates

Phytoplankton in this report are identified to the species level.

39

Table 8. Concentrations of trace constituents in Kenney Reservoir/ site 1, water years 1985-87

[ft, feet; °C, degrees Celsius; pS/ctn, microsiemens per centimeter at 25 degrees Celsius; Mg/L, micrograms per liter; <, less than; , no data]

Date

01/16/8501/16/85

09/06/8509/06/85

04/24/8604/24/86

08/20/8608/20/86

06/19/8706/19/87

Date

01/16/8501/16/85

09/06/8509/06/85

04/24/8604/24/86

08/20/8608/20/86

06/19/8706/19/87

Date

01/16/8501/16/85

09/06/8509/06/85

04/24/8604/24/86

08/20/8608/20/86

06/19/8706/19/87

Time

14301535

11051155

12251310

12251310

13251415

Time

14301535

11051155

12251310

12251310

13251415

Time

14301535

11051155

12251310

12251310

13251415

Sample depth (ft)

247

243

240

240

245

Sampledepth(ft)

2*7.

243

240

240

245

Sampledepth(ft)

247

243

240

240

245

0 .,.. Aluminum, Anti- A ._ Specific . , Arsenic Temper- e , . total mony, . . , * conduct- pH _ *' total ature , . ,. recover- total , /T( C) r o / \ able (Mg/L . ^tMfc/cmj (Mg/L A1) sb) As;

0.05.0

19.117.9

12.09.0

22.019.0

19.614.0

Cadmium,totalrecover

able(Mg/L Cd)

<!<1

21

<1<1

<1<1

<1<!

Mercury,total

recoverable

(Mg/L Hg)

0.2< !

.2

.2

.1

.1

< !< !

741 81,430 7

835 8932 8

865 8870 8

739 8756 8

511 8531 7

Chromium ,totalrecover

able(Mg/L Cr)

43

32

25

25

25

Molybdenum,totalrecover

able(Mg/L Mo)

22

35

<1<1

55

2< l

.3 140

.4 190

.3 70

.1 300

.5 190

.4 190

.5 179

.2 719

.8 100

.8 530

Cobalt,totalrecover

able

<1<1

<1<1

<1<1

<1<1

Copper,totalrecover

able(Mg/L Co) (Mg/L Cu)

<!4

521

<1<1

<11

<1<!

Nickel,totalrecover

able(Mg/L Ni)

1114

326

52

36

53

23

22

74

35

23

Selenium,total(Mg/L

<i9

22

21

22 --

Iron,totalrecover

able(Mg/L Fe)

1402,800

30220

250230

179789

170710

Silver,totalrecover

able

Barium, Beryllium ' total total

recover- recover able able

(Mg/L Ba) (Mg/L Be)

200<100

<100<100

100100

<100<100

<100<100

Lead,total

<10<10

<10<10

<10<10

<10<10

<10<10

Lithium,total

recover- recoverable able

(Mg/L Pb) (Mg/L Li)

6<1

22

42

5<5

<5<5

Strontium,dis

solvedSe) (Mg/L Ag) (Mg/L Sr)

32

33

66

22

<1o<1o<1o<1o<1< l

8601,300

990890

950920

889920

540540

1020

2020

2020

1020

OoOo

Strontium,totalrecover

able(Mg/L Sr) (

1,1001,200

600600

850910

829860

520520

' Boron, dis solved(Mg/L B)

5080

8090

8070

6070

4040

Manganese,totalrecover

able(Mg/L Mn)

101,700

2060

2020

20109

10140

Zinc,totalrecoverable

Mg/L Zn)

2020

2020

0010

<1010

0000

40

Phytoplankton densities will vary considerably from lake to lake and commonly show seasonal fluctuations or progressions within a given lake (Greeson, 1971). The ratios and dominance and(or) persistence of phytoplankton groups are sometimes used as an aid in lake classification (Hutchinson, 1967). Other investigators may use a diversity index such as that proposed by Wilhm and Dorris (1968). The diversity index (DI) is formulated as:

s n. n.

and is based on the relation of individuals per taxon (n.), the total number

of individuals in the sample (n) , and the total number of taxa or identifiable groups (s) in the sampled community.

Diversity index is a ratio of the number of species or other taxa to another important value, usually the total number of organisms in a sample of the community. The diversity index measures the evenness of distribution of individuals within the community (Greeson, 1982). The use of a diversity index as an indicator of water-quality conditions is based on the assumption that unpolluted water generally has a greater number of species, thus greater diversity index, than polluted water. The diversity index in unpolluted water is large because a benthic community can develop that has many species of relatively equal abundance. Persistent small values of diversity index are indicative of polluted or environmentally stressed water because this water will favor a relatively few species of tolerant organisms. Diversity index can range from zero (all organisms in the community belong to the same species) to any positive number. The upper limit, however, is about nine and most frequently is less than five.

Because phytoplankton distributions within a reservoir can vary, phyto plankton samples in Kenney Reservoir were collected at sites 1 and 2 from depths of maximum concentrations of dissolved oxygen (usually at the 2-ft depth) and as a composite of the euphotic zone. Phytoplankton identification, cell counts, percent composition, number of species, diversity index, biomass, and chlorophyll concentrations for sites 1 and 2 are listed in table 15 in the "Hydrologic Data" section.

A total of 210 phytoplankton species from 7 phyla were identified in Kenney Reservoir during 1985-87. Cell counts and phylum composition for diatoms, green algae, and blue-green algae from composite samples at sites 1 and 2, and from samples collected at the 2-ft depth at site 1, are shown in figure 18. Similar data for golden-brown algae, cryptomonads , euglenoids , and dinoflagellates are shown in figure 19.

41

15,000

10,000

5,000


I BACILLARIOPHYTA (diatoms)I I CHLOROPHYTA (green algae)HI CYANOPHYTA (blue-green algae)

in in in

CC111Q_ C/)

_J 111o

ID O O

I

20,000

15,000 -

10,000 -

5,000 -

op op op

SITE 1 (composites)

T ob

in in inop op opob ii «^-CM «- CM

' ' -L00 O> O

00 03 00 00o to o> o>^ T to V00 O> tO

op op op in to to

opopopopopopopop

15,000

10,000

5,000

SITE 2 (composites)

d>CM «-

00obCM <-

ob d>

oo op 00 00 00to to r^ r^ r~ i-»op op op op op opo to d> in to to«? T T T T d>oo o> to r^ oo

DATE

Figure 18.--Cell counts and relative composition of the Bacillariophyta, Chlorophyta, and Cyanophyta in Kenney Reservoir (sites 1 and 2), water years 1985-87.

42

72,000

71,000 -

70,000 -


CHRYSOPHYTA (golden-brown algae);:;x;:;j CRYPTOPHYTA (cryptomonads)

I | EUGLENOPHYTA (euglenoids)

PYRRHOPHYTA (dinoflagellates)

SITE 1 (composites)

800

600

400

200

SITE 2 (composites)

DATE

Figure 19. Cell counts and relative composition of the Chrysophyta, Cryptophyta, Euglenophyta, and Pyrrhophyta in Kenney Reservoir (sites 1 and 2), water years 1985-87.

43

Except for a dinoflagellate bloom in June 1987, diatoms, green algae, and blue-green algae were the most common phytoplankton in Kenney Reservoir during 1985-86. In 1987, blue-green algae and occasionally diatoms were dominant. Cell counts tended to increase from the inlet (site 2) to the dam (site 1). Maximum combined cell count (unrounded values) in the reservoir for the three dominant phyla was slightly greater than 15,000 cells/ml (site 1) in 1986 (fig. 18). Cell counts for the remaining four phyla intermittently ranged from 0 cells/mL to several hundred cells/mL, except for the dinoflagellate bloom in June 1987. Data comparisons of the four nondominant phyla indicated that cryptomonads and golden-brown algae generally were present in the largest concentrations. Because large concentrations of suspended material interfere in the laboratory analyses for biomass and chlorophyll, attempts to relate concentrations of biomass and chlorophylls a, b, and c with other biological measurements from the turbid water at Kenney Reservoir were inconclusive.

A comparison of phytoplankton species collected among 29 sample pairs (2-ft depth and composite samples) for 1985-86 was determined. For all 29 comparisons, a combined total of 228 species was identified as common in both samples. In addition to the common species in both samples, the composite samples contained 237 species not identified in the 2-ft depth samples. Conversely, 154 species were identified from the 2-ft depth samples that did not occur in composite samples. These comparisons indicate that although the composite method for phytoplankton collection alone would have yielded about 22 percent more species than collections obtained solely at the 2-ft depth, the presence or recurrence of 154 species during 1985 and 1986 would have gone undetected if the single-depth samples (2-ft) were omitted from the program.

In 1987, a phytoplankton bloom that was observed during most of June and consisted almost entirely of the dinoflagellate, Peridinium biceps, developed within the near-surface (depths generally less than 1 ft) water of the reservoir. Dark brown patches and stringers of concentrated phytoplankton growths were easily visible and seemed to resemble subsurface oil slicks. A maximum count of 71,000 cells/mL (fig. 19) was determined from a sample collected near site 1 on June 9, 1987. Large concentrations of dissolved oxygen (14.0-18.0 mg/L) from photosynthesis, large pH values (9.0-9.2), and large BOD from respiration (greater than 5 [(mg/L)/day] dissolved oxygen or 5-day BOD greater than 25 mg/L) were measured in water samples obtained from the concentrated growths of phytoplankton. By July, almost all indica tions of the phytoplankton bloom were gone.

The phytoplankton bloom in 1987 was the first bloom detected since the reservoir filled in late 1984. Conditions that may have contributed to the bloom and that were unique in 1987 when compared with previous years are listed below:

1. Mean annual inflows to the reservoir (site 3) in 1985 and 1986 were about 1,160 ft3/s; in 1987, the mean annual inflow was about 750 ft3/s. More notably, mean monthly discharge for June 1985 was about 2,900 ft 3 /s and for June 1986 was about 3,100 ft3/s, but decreased to about 1,000 ft3/s for June 1987. As a result, hydraulic residence time, water clarity, and water temperature, which may be the major causative factors for the bloom in Kenney Reservoir, were greater in June 1987 than during the same month in 1985-86.

44

2. On several occasions during April-June 1987, concentrations of organic nitrogen that ranged from 1.0 to 1.7 mg/L and total and(or) dissolved phosphorus concentrations that ranged from 0.3 to 0.62 mg/L were deter mined in the White River at site 3. During the same period in 1985-86, concentrations of organic nitrogen at site 3 were 1.0 mg/L or less, and phosphorus concentrations were 0.3 mg/L or less. The large nutrient concentrations in the White River in the spring of 1987 resulted in large nutrient concentrations in Kenney Reservoir prior to the phytoplankton bloom in June. However, because nitrogen and phosphorus do not seem to decrease to concentrations that would limit algal growth, other factors, such as residence time and water clarity, probably affect algal growth in the reservoir.

Values for diversity index for all samples of phytoplankton ranged from 0.11 to 3.99 at the dam (site 1) and from 0.18 to 4.02 near the inlet (site 2). The maximum and minimum diversity-index values for each sampling period for all phytoplankton samples collected in Kenney Reservoir during 1985-87 are shown in figure 20. For most of the sampling period, the diversity-index values were greater near the inlet (site 2) than near the dam (site 1). The slightly lesser diversity index and the general increases in cell counts of blue-green algae near the dam, when compared with data near the inlet, may indicate the effects of the hydrologic change from a river envi ronment to a lake environment.

6.00

X 4.00LUQz

CC. UJ

Q 2.00

MAXIMUM

MINIMUM

I I I I . I I

J FMAMJJASONOJFMAMJJASONDJ FMAMJ JASON

MONTHS

1985 1986 1987

Figure 20.--Maximum and minimum values of diversity index for all samples of phytoplankton collected in Kenney Reservoir, water years 1985-87.

45

Bacteria

Total and fecal coliform and fecal streptococci bacteria are natural inhabitants of the intestinal tract of man and other animals. As such, they are excreted in large numbers. A healthy person would not normally excrete pathogenic organisms; however, should illness develop, these organisms could occur in the feces. The presence of large numbers of fecal coliform and fecal streptococci bacteria in water provides warning of the potential presence of waterborne pathogenic organisms (Federal Water Quality Administration, 1971).

Knowing whether the fecal coliform bacteria originated from human or other animals would be helpful in interpreting or locating the source of contamination. To assist in this determination, the ratio of fecal coliform to fecal streptococci (FC/FS) sometimes is used. A ratio greater than 4.0 indicates a human-waste source; a ratio less than 1.0 indicates a predomi nantly livestock and(or) poultry source (Federal Water Quality Administration, 1971). The State of Colorado (Colorado Department of Health, 1978) has set forth the following criteria for recreational water:

ClassFecal coliform bacteria

(colonies per 100 milliliters)Geometric mean

Class I - Primary contact Class II - Secondary contact

2001,000

Because Kenney Reservoir is used for recreation, concentrations of total and fecal coliform and fecal streptococci bacteria were determined from the 2-ft and near-bottom depths at sites 1 and 2 for all sample collections during 1985-86 (tables 13 and 14 in the "Hydrologic Data" section). The range of colony counts per 100 milliliters that were determined after controlled incubations are as follows: total coliform bacteria less than 2 to 1,100; fecal coliform bacteria less than 2 to 380; and fecal streptococci bacteria less than 3 to 960. Maximum values for all three bacteria groups occurred at site 2.

Patterns of concentrations of fecal coliform and fecal streptococci bacteria collected from the 2-ft depths at sites 1 and 2 were representative of the bacteria groups in general and are compared in figure 21. Colony counts for both bacteria groups were greatest during the spring and early summer when overland runoff was high and were least during base-flow conditions. Because suspended solids can absorb organic material, bacteria densities mostly decreased from the inlet (site 2) to the dam (site 1) as suspended material settled to the bottom of the reservoir. The FC/FS ratios were less than 2.0 and generally were less than 1.0. Because the FC/FS ratios were substantially less than 4, the sources of the bacteria in Kenney Reservoir most likely were indigenous to the basin and not from nearby human origins.

46

800

600

400

200


o o

UJ

z go o

1,200

FECAL COLIFORM

FECAL STREPTOCOCCI

1,000

800

600

400

200

DATE

Figure 21. Concentrations of fecal coliform and fecal streptococci bacteria collected at the 2-foot depths in Kenney Reservoir (sites 1 and 2), water years 1985-86.

47

SEDIMENT-TRANSPORT CHARACTERISTICS

Fluvial sediment, as defined by Colby (1963), is sediment transported by or suspended in water or that has been deposited in beds by water. The source of sediment in streams is derived principally from sheet erosion and channel erosion. Sheet erosion removes sediment rather uniformly from an area, and channel erosion erodes the beds and banks of streams when the flowing water has the capability of transporting additional sediment. Channel erosion usually is evident downstream from reservoirs, where the relatively sediment- free streamflow will degrade the stream channel as the channel begins to achieve equilibrium with sediment-transport capacity.

Sediment is transported in suspension (suspended-sediment load) and as particles along the streambed (bedload). The suspended-sediment load commonly consists of clay, silt, and sand that usually travel at the velocity of the stream and that are held in suspension by the upward components of turbulent currents or by colloidal forces. Bedload consists of coarser sized sediment that comes from the bed and banks of the stream. Particles moving as bedload remain close to the streambed, usually within a few grain diameters for uniform sediment (Colby, 1963). The suspended-sediment load plus the bedload compose the total-sediment load.

Sediment deposition in water is dependent upon particle-fall velocity and the transporting capability of the water. Fall velocity of a particle is dependent upon the difference in density between the particle and the water, the viscosity of the water, and the size, shape, and flocculation of the particles. Flocculation is dependent upon the size, shape, and composition of the particles and on the turbulence and chemical properties of the water (Colby, 1963). Fluvial sediment generally is deposited in lakes or reser voirs, stream channels, or flood plains. Concepts of fluvial sediment are discussed in Colby (1963) and Guy (1970a).

Fluvial Sediment

Instantaneous suspended-sediment load (L ), in tons per day, is a function of water discharge (Q) in cubic feet per second, sediment concen tration (C) in milligrams per liter, and the conversion constant 0.0027. Suspended-sediment load is calculated as follows:

L = 0.0027 QC. (2) s

Annual loads of suspended sediment transported by the White River at site 3 for water years 1983-87 were estimated from least-square regressions that related instantaneous suspended-sediment load to instantaneous water discharge. Three regressions were developed from periodic samples using log- transformed data for concentrations of suspended sediment and instantaneous water discharge for water years 1983-87. The data were selectively grouped to define the suspended-sediment load and water-discharge characteristics for hydrologic seasons as follows: (1) The rising and peak flows during spring and early summer from snowmelt runoff; (2) the receding streamflows of summer that follow the peak snowmelt conditions; and (3) the base flows of fall and winter. The regressions used to relate suspended-sediment loads to water discharge for the three hydrologic seasons at site 3 are shown in figure 22.

48

RISING AND PEAK FLOW-SPRING AND EARLY SUMMER

C/J < CO

Q cc.LLJ 0_C/J

REGRESSION LINE



LOG (Ls) = 1.49 LOG ( Q )-1.025 0.76

RECEDING FLOW-SUMMER

Q < O

QLLJ C/J

Q LUQZLU Q_ C/J D C/J C/J D O

<

C/J

LOG (Ls ) = 2.39 LOG (Q)-4.53 r 2 = 0.85

BASE FLOW-FALL AND WINTER

LOG ( Ls ) =» 3.23 LOG ( Q J-6.73 r 2 =0.41

INSTANTANEOUS WATER DISCHARGE (Q), IN CUBIC FEET PER SECOND (LOG BASE 10)

Figure 22.--Relations of suspended-sediment loads to water discharge for three hydrologic seasons in the White River (site 3), water years 1983-87.

49

Instantaneous bedload was measured at site 3 during 1984-86 from 18 samples of bedload. The samples were collected with a Helley-Smith bedload sampler using the techniques described by Emmett (1980). Each sample was collected in conjunction with samples for suspended sediment at identical locations in the stream. Instantaneous bedload (£h), in tons per day, is a

function of sampled bedload weight (&O, in grams, width of the stream (D ),

in feet, the conversion constant 0.0952, horizontal width of the sampler intake (S ), in feet, number of verticals (N), and the time of sampling per

IV

vertical (T), in seconds. Instantaneous bedload is calculated as follows:

W, D 0.0952L = -^ K (3) Lb S N T U; w

Instantaneous bedloads were compared with instantaneous suspended- sediment loads that were collected simultaneously with bedload data (table 9). For a water-discharge range of 599-6,090 ft3/s, bedload was less than 1.2 percent of the suspended-sediment load. Because bedload was small at site 3, it was not considered a substantial part of the estimated annual sedi ment loads to Kenney Reservoir.

The regression estimates of instantaneous suspended-sediment load (L )O

were assumed applicable for computing daily suspended-sediment load (L ,) from

daily mean water discharges (£> ,) for the three hydrologic seasons. Because

bias may be introduced when using log-transformed data for regression analy sis, a bias correction factor (C, ), as presented by Ferguson (1986) and

discussed by Elliott and Defeyter (1986), was applied to each regression. The bias correction factor for conversion from common logarithms to the general antilogarithm form is a function of the regression variance (s 2 ) and is expressed as follows:

(4)

where e equals 2.71828 and is the base for natural logarithms. The general antilogarithm form of the regressions shown in figure 21 combined with the bias correction factor is as follows:

Ls = 10a Qb Cb , (5)

where a is the regression constant and b is the regression coefficient. Using the assumption that

50

the regressions used to compute mean daily suspended-sediment loads (L ,) from

daily water discharge (Q ,) for the hydrologic seasons are:

Rising and peak flow Lsd = KT 1 - 025 J^1 - 491 1.207 (7)

Receding flow Lsd = 10~ 4 - 53 g 2.386 1<165 ( 8 )

Base flow L . = 1(T6 - 725 Q 3 - 23 1.642 (9)sa or

The computed daily suspended-sediment loads were summed to determine annual suspended-sediment loads in the lower White River.

Annual suspended-sediment loads for the 5 water years, 1983-87, in the White River at site 3, and annual suspended-sediment loads for the 9 water years, 1973-81, for the discontinued streamflow-gaging station 09306300, are plotted in figure 23. The sediment data from station 09306300 were computed using the procedures discussed previously and are included in figure 23 to improve the definition of suspended-sediment transport for years of low flow in the lower White River. Although analysis of covariance at the 0.05 level of significance indicated that the annual suspended-sediment loads and water discharges from both sites might be combined into one regression, two regres sions were used because of the distance between the sites (12 mi) and because concurrent data were not collected at the sites. Comparisons are further limited because annual suspended-sediment loads could not be determined for similar ranges of annual water discharge at either site.

Analysis of data (figs. 22 and 23) indicated that during water years 1983-87 annual suspended-sediment loads in the lower White River at site 3 ranged from about 391,000 tons in 1987 to about 1,570,000 tons in 1984. Mean annual suspended-sediment load at site 3 for 1983-87 was approximately 1,040,000 tons. For the 3 water years (1985-87) of reservoir existence, however, annual suspended-sediment loads at site 3 ranged from 391,000 to 1,070,000 tons. During 1973-81, when annual water discharge at station 09306300 ranged from 312 fts/s (about 226,000 acre-ft) to 766 fts/s (about 555,000 acre-ft), annual suspended-sediment loads near the present dam site (fig. 2) ranged from about 104,000 tons in 1977 to about 747,000 tons in 1978. The mean annual suspended-sediment load at station 09306300 for 1973-81 was approximately 482,000 tons. Improved regressions for estimating annual suspended-sediment loads for medium- and low-flow runoff years in the White River at site 3 should be possible when additional data are collected.

Additional short-term, but large, discharges of sediment to the main stem of the White River may occur from tributary basins during intense thunder storms. As an example, an estimated 290,000 tons of sediment transport from the Piceance basin was reported from a single storm near the mouth of Yellow Creek (fig. 1) in 1978 (U.S. Geological Survey, 1979). Although evidence of this event is inferred in figure 23, such events may go undetected when samples are collected periodically.

51

Table 9. Size distributions of bedload and suspended sediment in the White Uiver at site 3, water years 1954-57

[ft3/s, cubic feet per second; mm, millimeters; , no data]

Date

05/01/8405/17/8406/01/8406/06/8406/08/84

06/14/8406/29/8407/13/8411/30/8404/23/85

05/29/8506/13/8504/23/8605/08/8606/02/86

06/05/8606/11/8606/19/8605/01/8705/16/87

Date

05/01/8405/17/8406/01/8406/06/8406/08/84

06/14/8406/29/8407/13/8411/30/8404/23/85

05/29/8506/13/8504/23/8605/08/8606/02/86

06/05/8606/11/8606/19/8605/01/8705/16/87

Water Bed- Suspended-dis- load, sediment

_,. charge, instan- load,instantaneous instantaneous (tons/ taneous(ft 3/s) day) (tons/day)

1030 957 17.2 2,8401130 4,760 14.2 37,8001145 5,210 24.0 27,1001530 5,140 24.0 22,5001100 6,090 50.0 42,900

1345 3,960 32.0 15,2001230 3,300 27.0 6,0501120 1,760 17.0 1,9501130 599 2.8 2461400 1,890 29.0 10,100

1500 3,760 50.5 11,1001500 3,500 22.6 8,1401300 1,246 13.7 3,9401330 2,404 28.2 5,1701300 3,260 61.8 5,270

1100 3,280 60.0 6,2401015 3,275 14.6 7,3801300 2,290 16.8 2,2501500 2,000 7,8801510 2,140 4,920

Sediment, Sediment,percentage percentagefiner than finer than0.062 mm 0. 125 mm

(bed- (sus- (bed- (sus-load) pended) load) pended)

1.0 86.0 3.6 92.0.7 78.0 2.2 91.0.9 76.0 2.4 89.0

1.3 75.0 2.6 88.01.0 82.0 2.3 92.0

1.5 75.0 2.7 89.0.5 67.0 1.2 85.0.3 77.0 0.5 90.0

1.4 86.0 1.6 93.01.2 75.0 3.5 87.0

1.6 57.0 5.4 79.01.9 59.0 3.1 82.01.1 64.0 3.8 83.0.7 64.0 3.3 77.0.3 62.0 1.5 75.0

.6 65.0 2.5 77.0

.6 76.0 2.5 88.0

.2 66.0 0.7 76.062.0 81.059.0 78.0

Sediment,percentagefiner than0.002 mm

(bed- (sus-load) pended)

28.024.022.024.029.0

20.014.07.0

21.026.0

13.015.015.018.016.0

17.024.017.016.014.0

Sediment ,percentagefiner than0.250 mm


36.1 98.05.6 99.09.5 98.07.5 97.06.8 99.0

5.7 97.03.6 97.01.6 98.0

17.4 99.018.6 96.0

33.8 94.024.4 96.034.3 96.035.4 94.010.4 92.0

13.4 91.029.4 97.09.2 91.0

96.093.0



41.032.023.030.038.0

24.016.018.023.032.0

16.020.022.024.021.0

22.029.023.020.019.0



93.9 100.040.3 100.053.4 100.060.6 99.033.7 100.0

48.4 100.055.4 100.055.1 100.064.9 100.081.7 100.0

77.8 100.071.3 100.083.5 100.088.0 99.054.1 100.0

59.6 99.080.6 100.055.0 99.0

100.099.0



64.053.046.046.057.0

44.032.040.053.051.0

28.031.036.040.034.0

36.046.037.032.032.0



97.4 100.052.5 100.067.2 100.076.7 100.044.4 100.0

66.4 100.077.6 100.088.9 100.092.3 100.091.2 100.0

90.8 100.087.5 100.096.2 100.097.0 100.077.2 100.0

85.2 100.093.3 100.078.2 100.0

100.0100.0

52

Table 9.--Size distributions of bedload and suspended sediment in the White River at site 3, water years 1984-87 Continued

Ha t~ e* LJa L-C

05/01/8405/17/8406/01/8406/06/8406/08/84

06/14/8406/29/8407/13/8411/30/8404/23/85

05/29/8506/13/8504/23-8605/08/8606/02/86

06/05/8606/11/8606/19/8605/01/8705/16/87



99.261.374.183.952.2

74.487.197.598.294.0

95.593.999.199.084.8

92.696.888.6 --



99.871.879.988.561.2

80.392.799.599.697.9

97.797.399.599.688.2

95.898.593.6-_--



99.984.087.091.573.4

85.995.5100.0100.098.7

99.298.8100.099.791.8

98.399.797.0__



100.094.194.194.588.4

93.397.0100.0

100.0

99.8100.0

..100.096.6

99.8100.0100.0

..--



__ --100.0100.097.299.1

97.897.0 __--

100.0_...__

100.0

100.0..__ --

Sediment,percentagefiner than64.

(bed-load)

______

100.0100.0

100.0100.0

---_--

..------

__

_-------

.00 mm(sus

pended)

________--

__--__..--

..__----

______--

2,000,000

yj 1,800,000z o2 1,600,000

Q^ 1,400,000_i I- Z 1,200,000

2 1,000,000

QQ 800,000Z UJ Q. </) 600,000

< 400,000

Zz< 200,000

REGRESSION LINE



WHITE RIVER-Site 3

STATION 09306300-White River near Rangely

1978 Water year A

Load = 1.72 (Discharge) -288,700 r2 = 0.86

Load= 2.53 (Discharge) -972,700 r2 = 0.90

200,000 400,000 600,000 800,000 1,000,000

ANNUAL WATER DISCHARGE, IN ACRE-FEET

1,200,000

Figure 23.--Relations of annual suspended-sediment loads to annual water discharge for the White River at site 3 (water years 1983-87) and at station 09306300 (water years 1973-81).

53

Twenty samples of suspended sediment were collected from a range of water discharge during 1984-87 and analyzed for particle-size distribution (table 9). Variations in size composition of suspended sediment seemed to be independent of changes in sediment concentration, water discharge, and sediment loads. Average values, standard deviations, and ranges of size composition for the 20 samples are listed below:

Size [mm =

ClaySiltSand

(finer(0.(0.

004062

category millimeter]

Averagecomposition (rounded to nearest

than 0.004 mm)toto

finer than 0finer than 2

.062 mm)

.00 mm)

percent)

254629

Standard deviation (percent)

769

Minimum value

(percent)

163914

Maximum value

(percent)

416343

Bedload was mostly sand (about 86 percent sand and about 13 percent gravel). Variations in size composition of bedload were independent of water discharge and sediment load.

Sediment Retention in the Reservoir

Because water-discharge and sediment data were not collected immediately downstream from the dam, direct measurements of sediment retention and reser voir trap efficiency of Kenney Reservoir were not possible. However, indirect estimates of sediment retention and trap efficiency in the reservoir were determined from data comparisons of samples for suspended solids (tables 13 and 14 in the "Hydrologic Data" section) collected from the 2-ft and near bottom depths within the reservoir at sites 1 and 2. In addition, data for suspended solids in the reservoir were compared with suspended-sediment data in the White River at site 3.

Concentrations of suspended solids generally decreased from the inlet (site 2) to the dam (site 1). The percent retention of suspended solids for a range of water discharge is shown in figure 24. The percent retention in con centrations of suspended solids from site 2 to site 1 ranged from about 65 to 98 percent when inflow was less than 1,000 ft3/s; the percentage decreased to about 30 to 80 percent when inflow was greater than 2,500 ft3/s (fig. 24). These values should approximate the percent retention or reservoir trap effi ciency of clay and perhaps, very fine silts that entered the reservoir. Sedi ment particles that had general fall velocities in excess of 1 mm per second, such as coarse silts and sands, most likely were deposited along the reservoir bottom before the samples for suspended solids were collected. Assuming a generally small value of approximately 65 percent retention of clay and total retention of silt and sand in the reservoir, the estimated total sediment retention of the reservoir during high runoff years was calculated as 0.65 (25 percent clay) plus 1.00 (46 percent silt) plus 1.00 (29 percent sand) or equal to about 91 percent of the suspended sediment that entered Kenney Reservoir.

54

Concentrations of suspended solids at sites 1 and 2 in Kenney Reservoir were compared with concentrations of suspended sediment measured in the White River (site 3). Although direct comparison of suspended solids with suspended sediment may include some analytical and sampling error, both methods provide an acceptable measure of suspended matter in water. Data were evaluated for approximate time of travel between site 3 and the reservoir (approximately 2 to 5 hours) and for residence time within the reservoir (table 2). Eight sets of data that had collection times between sites that approximated the down stream time of travel were selected. Comparison of data within each set indicated that when daily suspended-sediment loads exceeded 100 tons in the White River, suspended-sediment concentrations decreased about 74 percent from the White River (site 3) to the inlet (site 2) and decreased about 94 percent from the White River (site 3) to the dam (site 1).

Daily concentrations of suspended solids at site 1 were estimated from regressions that related instantaneous concentrations of suspended solids for the 2-ft and near-bottom depths and an average of both depths at site 1 with reservoir inflow measured at site 3. The coefficients of determination (r 2 ) of the 3 regressions ranged from 0.43 to 0.71. Because the reservoir capacity is small, it was assumed that daily mean water discharge to the reservoir approximated daily mean water discharge from the reservoir. Mean daily and mean annual suspended-solids loads that theoretically were discharged from the 2-ft or near-bottom depths at site 1 were determined using the regression estimates for daily concentrations of suspended solids and inflow discharge.

100 c/j Q_i oc/3G 80UJQZUJO-c/3D 60

O DC UJ Q_

20

2-FOOT DEPTH

A NEAR BOTTOM

I

1,000 2,000 3,000

WATER DISCHARGE, IN CUBIC FEET PER SECOND

4,000

Figure 24.--Percent retention of suspended solids in Kenney Reservoir computed from a comparison of data near the inlet (site 2) and at the dam (site 1) for a range of water discharge, water years 1985-87.

55

Mean daily suspended-sediment loads for site 3 and mean daily suspended-solids loads computed as the average of the 2-ft and near-bottom depths at site 1 for 1985-87 are compared in figure 25. Annual suspended-sediment loads for site 3 and estimated suspended-solids loads at site 1 at the 2-ft and near-bottom depths are listed below:

Site 3 Site 1 (2-foot depth)

Site 1 (near-bottom depth)

Suspended- sedimentWater year

198519861987

Load (tons per year)

1,070,0001,000,000391,000

Yield (tons per

square mile)

424396154

Estimated suspended-

solids load (tons per year)

27,10023,9006,800

Percent of suspended load at site 3

2.52.41.7

Estimated suspended-

solids load (tons per year)

34,40031,90014,100

Percent of suspended load at site 3

3.23.23.6

A comparison of the data for suspended-sediment loads in the White River at site 3 with the estimated suspended-solids loads discharged from the dam at site 1 indicates that the sediment retention in Kenney Reservoir may be as great as 96 to 98 percent.

16,000

Q 12,000CCLU Q_

8,000

oLUo

a.</> 4,000

Mean daily suspended-sediment loads. White River at site 3

Mean daily water discharge, White River at site 3

Estimated mean daily suspended-solids loads discharged from Kenney Reservoir at site 1

16,000

O (J

12,000

Q_H-

oCDD

8,000 Oz

4,000

(J oCC LU

I

OCT NOV DEC JAN FEB MAR APR MAY

MONTHS

JUNE JULY AUG SEPT

Figure 25.--Mean daily suspended-sediment loads and mean daily water discharge in the White River at site 3 and estimated mean daily suspended-solids loads discharged from Kenney Reservoir at site 1, water years 1985-87.

56

The estimated values of sediment retention, by using the three previously described methods, ranged from 91 to 98 percent. These results are large when compared with estimates for sediment retention developed from methods of Brune (1953) and Churchill (1948). Brune developed a set of curves for estimating sediment retention based on capacity-inflow ratios. The application of Brune's curves to Kenney Reservoir indicates that sediment retention would range from about 50 to 75 percent. Churchill's method, which uses capacity-inflow data and mean velocity of flow through the reservoir, indicated that sediment reten tion in Kenney Reservoir would be about 85 percent. The methods of Brune and Churchill, however, do not completely address size distribution of sediment. The coarse size composition (about 75 percent sand and silt) and related rapid deposition within the reservoir of the suspended sediment from the White River probably account for most of the differences between the estimates of sediment retention presented in this report and the estimates by using the methods of Brune and Churchill. Data for reservoir percent retention of suspended solids (fig. 24), however, are within the range of estimates of sediment retention by using the methods of Brune and Churchill.

A method for deriving original volume and compacted sediment volume displacement and percent loss of original reservoir capacity from methods of reservoir operation and average size composition of input sediment loads is presented in Strand and Pemberton (1982). The method of Strand and Pemberton, as applied to Kenney Reservoir, is exemplified in table 10. Based on a 91-percent sediment retention for the reservoir and the annual suspended- sediment load data at station 09306300 and site 3, annual volume displacement during 1973-87 would have ranged from about 0.5 percent in 1977 to about 7 percent in 1984 of the original reservoir capacity. After completion of the reservoir in late 1984, the estimated capacity loss ranged from about 1.8 percent in 1987, when the annual suspended-sediment load equaled about 391,000 tons, to about 5 percent in 1985, when the annual suspended-sediment load was approximately 1,070,000 tons.

By using the mean annual suspended-sediment load of 1,040,000 tons (site 3) for 1983-87, about 4.5 to about 5.0 percent of the original reservoir capacity would have been displaced by sediment in a year of average streamflow. If, however, the mean annual suspended-sediment load of 482,000 tons determined for discontinued gaging station 09306300 for 1973-81 is used, then the projected loss of original reservoir capacity would have been about 2.2 percent during a year of average water discharge.

Volume displacement and percent loss of original reservoir capacity for estimates of sediment retention are shown in figure 26. Not shown in figure 26 are possible additional increases in volume displacement that might result from occasional major runoff events from the semi-arid tributary basins upstream from the reservoir. Capacity loss may be less if near-bottom currents within the reservoir discharged scoured sediments through the bottom release outlet.

57

Table 10. Examples of computations of volume displacement from sediment loads to Kenney Reservoir

I. PROGRAM TO COMPUTE INITIAL AND FINAL WEIGHT PER VOLUME OF SEDIMENT IN RESERVOIRS (from Strand and Pemberton, 1982)

a. Reservoir operation coefficient (Or) (Or) Description

1. Sediment always submerged or nearly submerged2. Normally moderate to considerable reservoir drawdown3. Reservoir normally empty4. Riverbed sediments

b. Coefficients for sediment size per reservoir operation (Or)

Or

Initial weight (mass) in Ibs/cubic foot _________(Kg/cubic meter)_________

Time compaction (K) for inch Ib _______(metric units)______

Clay (We) Silt (Wm) Sand (Ws) Clay (We) Silt (Wm) Sand (Ws)English Metric English Metric English Metric English Metric English Metric English Metric

1234

26354060

416561641961

70717273

1,1201,1401,1501,170

97979797

1,5501,5501,5501,550

168.40

256135

0

5.71.80

91290

000

000

Data inputEnter reservoir coefficient- Enter clay percent- -- Enter silt percent----------Enter sand percent- -------

Enter compaction time (T) in years---> Enter reservoir capacity (C)--------->Enter annual sediment load-------- ->

125 %46 %29 %

20 years13,800 acre-feet

1,040,000 tons (average 1983-87)

d. Calculations

Initial weight(IW) = (Wc)(%c) IW = 66.830

(Wm)(%ro) + (Ws)(%s)

Final weight(FW) = IW + 0.04343(K)[(T/T-1)(log eK = 6.622 FW = 73.023

II. VOLUME DISPLACEMENT IN ACRE-FEET (data for original reservoir capacity)

At 91% retention At 98% retention

Annualsedimentload(tons)

100,000200,000300,000400,000500,000

600,000700,000800,000900,000

1,000,000

1,100,0001,200,0001,300,0001,400,0001,500,0001,600,000

Initialvolumedisplace

ment(acre-feet)

63125188250313

375438500563625

688750813875938

1,000

Initialcapacity

loss(percent)

0.450.911.361.812.27

2.723.173.624.084.53

4.985.445.896.346.807.25

Volumeafter(T=20)years

(acre-feet)

57114172229286

343401458515572

629687744801858915

Capacityloss after

(T=20)years

(percent)

0.410.831.241.662.07

2.492.903.323.734.15

4.564.985.395.806.226.63

Initialvolumedisplacement

(acre-feet)

67135202269337

404471539606673

741808875943

1,0101,077

Initialcapacity

loss(percent)

0.490.981.461.952.44

2.933.423.904.394.88

5.375.856.346.837.327.81

Volumeafter(T=20)years

(acre-feet)

62123185246308

370431493555616

678739801863924986

Capacityloss after

(T=20)years

(percent)

0.450.891.341.792.23

2.683.133.574.024.47

4.915.365.806.256.707.14

58

zat

SIS!!

o

1.4

1.2

L Z 0.8 < (/) D O 0.6

z t0.4

0.2

Data collections (1985-87)

Methods of Churchill (1948)

Methods of Brune (1953)

QC en 01 CL QC

0.2 0.4 0.6 0.8 1 1.2 1.4 1.6

(MILLIONS)

ANNUAL SUSPENDED-SEDIMENT LOAD, IN TONS

1.8

Figure 26.--Volume displacement and percent loss of original reservoir capacity from annual suspended-sediment loads to Kenney Reservoir as estimated from data collections during water years 1985-87 and methods of Brune (1953) and Churchill (1948).

59

SUMMARY AND CONCLUSIONS

The construction of Taylor Draw Dam and filling of Kenney Reservoir during 1984 were done in response to increased water-management needs in northwestern Colorado. To evaluate possible processes and changes that may occur in the reservoir after filling and the effects of sediment transport to the reservoir, physical, chemical, and biological data needed to be collected to define seasonal variations in vertical and areal water-quality character istics. Physical, chemical, and biological data collected during the first 3 years of reservoir operation (1985-87) are presented and summarized for two sites in Kenney Reservoir. Related water-quality data and sediment character istics during 1983-87 are summarized for one site on the White River about 8 mi upstream from the reservoir. Data from the three sites were compared to determine and evaluate changes in water-quality characteristics caused by impoundment. In addition, fluvial sediment loads were determined for the White River upstream from the reservoir for 1983-87, and sediment retention in the reservoir was estimated. During 1983-87, the mean annual discharge in the White River (site 3) was about 174 percent of the mean annual discharge for the period of record (1973-81) at a discontinued streamflow-gaging station near the present dam site.

Water temperature, specific conductance, pH, and dissolved oxygen at various depths were measured at the dam (site 1) and near the reservoir inlet (site 2). Some stratification developed during summer when temperatures at site 1 generally decreased 3 to 5 °C from the surface to the bottom. Maximum surface temperatures in the reservoir were 23.8 °C at site 1 and 24.4 °C at site 2. Surface temperatures in the reservoir during summer were similar to temperatures measured in the White River at site 3 during summer.

After initial flushing, specific conductance in the reservoir ranged from 374 to 932 pS/cm, and values for the White River at site 3 ranged from 375 to 963 fJS/cm. Specific conductance was least during snowmelt runoff in May and June and greatest during low flow in fall and winter. Specific conductance varied little with depth. Lateral differences between sites were attributed to variations in discharge and time of travel. Predicted values of dissolved- solids concentrations from regression relations between values of specific conductance and concentrations of dissolved solids were similar at all three sites.

Measured values of pH in Kenney Reservoir generally ranged from 7.4 to 8.8; exceptions to this range of pH (9.0 to 9.2) occurred in localized water that contained a phytoplankton bloom in June 1987. Values of pH exceeded 8.5 only in near-surface water that was supersaturated with dissolved oxygen. Values of pH decreased with depth and were least (about 7.4 to 8.0) near the bottom of the reservoir. The small values of pH were attributed to the accumulation of C02 by respiration and other byproducts of organic decomposi tion. Values from periodic measurements of pH in the White River (site 3) during 1985-87 ranged from 8.0 to 8.8.

Concentrations of dissolved oxygen in the reservoir at sites 1 and 2 generally ranged from 2.3 to 10.1 mg/L; measured values in the White River (site 3) during 1985-87 ranged from 7.8 to 12.5 mg/L. A concentration of 0.0 mg/L was measured near the bottom at site 1 shortly after the reservoir filled. Maximum concentrations of dissolved oxygen (14.0 to 18.0 mg/L) in the

60

reservoir occurred in locally concentrated areas of a phytoplankton bloom in June 1987. Dissolved oxygen at the dam (site 1) decreased with depth during summer but concentrations remained equal to or greater than 4.0 mg/L in depths less than 35 ft. Supersaturation of dissolved oxygen from photosynthesis occurred in shallow depths at both reservoir sites. Biological activies such as respiration and decomposition decreased the dissolved-oxygen concentration at near-bottom depths. Except for two samples collected from localized growths of phytoplankton in June 1987, 5-day BOD in Kenney Reservoir ranged from 0.7 to 2.3 mg/L. The 5-day BOD in samples collected from the phyto plankton bloom in June 1987 exceeded 25 mg/L. Generally, BOD was slightly less in Kenney Reservoir when compared with BOD in the White River.

Secchi-disk measurements in the reservoir ranged from 11 to 144 in. Turbidity in NTU measured at 2-ft depths was least (1.2 NTU) at site 1 and greatest (220 NTU) at site 2. Data comparisons indicated that light penetra tion and general water clarity improved substantially from the inlet (site 2) to the dam (site 1), especially during low-flow periods.

Major ion types in the White River and Kenney Reservoir were similar and ranged from a hard to very hard calcium bicarbonate type when discharge in the White River exceeded 3,500 ft3/s. When flows were less than 400 ft3/s, water- quality type was a very hard calcium magnesium sulfate bicarbonate.

Concentrations of nitrogen, phosphorus, and total organic carbon in Kenney Reservoir and in the White River varied with season and runoff condi tions. Concentrations of ammonia as nitrogen, nitrite plus nitrate as nitro gen, and organic nitrogen generally were greatest in the White River (site 3) during spring runoff and least in near-surface waters at the dam (site 1) during fall. Ammonia concentrations as great as 0.13 mg/L were generated from biological decomposition near the reservoir bottom during summer; however, concentrations of ammonia may increase if anaerobic conditions develop.

Concentrations of dissolved phosphorus most frequently were less than 0.1 mg/L in the White River (site 3) and less than 0.05 mg/L in Kenney Reservoir. Large concentrations of nitrogen (greater than 1.5 mg/L) and phosphorus (0.3 to 0.62 mg/L) were measured in the White River during spring runoff in 1987. These large nutrient concentrations preceded a phytoplankton bloom that occurred in Kenney Reservoir during June 1987.

Twenty-two trace constituents were sampled from near-surface and near- bottom depths during high- and low-flow periods at site 1. Concentrations of iron and manganese were greater than 1,000 M8/^ only in the first sample collected near the reservoir bottom at site 1 in January 1985. Except for the one-time measurements of total recoverable iron and manganese in January 1985 and the concentrations of total recoverable mercury (as much as 0.2 |Jg/L), all concentrations of trace constituents were less than the recommended concentra tions established by the State of Colorado for cold-water biota. Concentra tions of total recoverable copper, mercury, and zinc tended to be slightly greater in the White River than concentrations measured in Kenney Reservoir.

A total of 210 species from 7 phyla of phytoplankton were identified from single depth and composite samples collected in Kenney Reservoir. Bacillariophyta (diatoms) and chlorophyta (green algae) were the most common

61

phytoplankton collected during 1985-86; cyanophyta (blue-green algae) were dominant in 1987. Cell counts increased during summer and were greater at site 1 than at site 2. Except for an algae bloom in June 1987, the maximum combined cell count (unrounded value) for the three major phyla (diatoms, green algae, and blue-green algae) was slightly greater than 15,000 cells/mL.

Species compositions of phytoplankton samples collected from the 2-ft depth in 1985 and 1986 were compared with concurrent collections of composite samples of the euphotic zone. Although the composite method for phytoplankton collection alone would have yielded about 22 percent more species than collec tions obtained solely at the 2-ft depth, the presence or reoccurrence of 154 species during 1985 and 1986 would have gone undetected if the single depth samples (2-ft) were omitted from the program.

In June 1987, a phytoplankton bloom that consisted almost entirely of the dinoflagellate, Peridinium biceps, developed in the reservoir. Subsurface growths that appeared as dark brown patches and stringers contained counts of 71,000 cells/mL. Large concentrations of dissolved oxygen (14.0-18.0 mg/L), pH (9.0-9.2 units), and 5-day BOD (greater than 25 mg/L) were measured in water that contained the phytoplankton growths. Increases in the hydraulic residence time, water clarity, water temperature, and possibly nutrient concentrations in Kenney Reservoir in 1987, when compared with 1985 and 1986, probably contributed to the bloom.

The diversity index (DI) for phytoplankton species identified from all samples ranged from 0.11 to 3.99 at the dam (site 1) and from 0.18 to 4.02 near the inlet (site 2). The DI generally was greater at site 2 than at site 1.

Concentrations, in colonies per 100 milliliters, of total coliform bacteria ranged from less than 2 to 1,100; concentrations of fecal coliform bacteria ranged from less than 2 to 380; and concentrations of fecal strepto cocci bacteria ranged from less than 3 to 960. Bacteria concentrations were greatest at site 2 during high runoff, and concentrations generally decreased from site 2 to site 1. The FC/FS ratios were less than 2.0 and generally were less than 1.0. Sources of bacteria in the reservoir most likely were indige nous to the basin and not from nearby human origins.

Annual suspended-sediment loads at site 3, during water years 1983-87, ranged from 391,000 to 1,570,000 tons. Bedload was less than 1.2 percent of suspended-sediment load in 18 measurements throughout a range (599-6,090 ft3/s) of water discharge. Because bedload was small, it was not considered a sub stantial part of the annual sediment load.

Size composition of 20 samples of suspended sediment averaged 25 percent clay, 46 percent silt, and 29 percent sand. Changes in percent composition of suspended sediment seemed to be independent of changes in sediment concentra tion, water discharge, and sediment load. Bedload was mostly sand (average bedload was about 86 percent sand and about 13 percent gravel), and the percent composition also seemed to be independent of water discharge and sediment load.

62

Sediment retention in Kenney Reservoir was estimated by using three methods. Data indicated that about 91 to about 98 percent of the total sediment load to the reservoir was retained since filling of the reservoir was completed in late 1984. Calculations of volume displacement in Kenney Reservoir, based on sediment load and size composition, and sediment retention comparisons with independent methods were summarized. Data collected during 1985-87 indicated that about 1.8 to 5 percent of the original capacity of the reservoir was displaced each year by sediment deposition. Data collected during 1973-87, however, indicated that the annual displacement could range from 0.5 to 7 percent each year. Variables such as sediment discharges from local tributary basins and sediment scour and discharge from the bottom of the reservoir were not measured.

Comparisons of water-quality data for the White River (site 3) with water impounded in Kenney Reservoir (sites 1 and 2) indicated:

1. Water releases at depth from the reservoir during summer generally would be several degrees cooler when compared with daytime maximum temperatures in the White River (site 3).

2. Differences between sites in values of specific conductance and concen trations of dissolved solids, major ions, and trace constituents were minor or insignificant. Changes in values for these chemical character istics principally were related to changes in streamflow.

3. Values of pH and dissolved oxygen were substantially less at depth during summer when compared with values measured near the reservoir surface and in the White River. Large values of pH and dissolved oxygen that were generated from photosynthesis in near-surface water in Kenney Reservoir were greater than values measured in the White River at site 3. Recur rences of these values in the reservoir during summer are probable.

4. Residence time was sufficient for most suspended matter to settle; therefore, substantial increases in water clarity of the White River between sites 3 and site 1 occurred during impoundment.

5. Decreases in concentrations of nitrate plus nitrite as nitrogen and phosphorus, probably as a result of biological uptake, occurred, and there were apparent gradual increases in concentrations of ammonia as nitrogen at depth during summer from respiration.

6. Suspended solids tend to adsorb organics as they settle; therefore,concentrations of bacteria and other related organics, such as organic nitrogen, were decreased in the water column as water flowed through the reservoir.

7. Phytoplankton blooms and the effects of the blooms on water quality within the reservoir were substantial. Major phytoplankton blooms probably will occur when there are associated increases in residence time, water clarity, and water temperature and possibly when large concentrations of nutrients exist during periods of decreased inflow.

8. Sediment transport by the White River upstream from the reservoir was decreased approximately 91 percent or greater after filling of Kenney Reservoir. The long-term effects of sediment removal and storage on the White River downstream from Kenney Reservoir were not assessed.

63

SELECTED REFERENCES

Alien, H.L., 1972, Phytoplankton photosynthesis, micronutrient interactions, and inorganic carbon availability in a soft-water Vermont lake- Proceedings of the symposium on nutrients and eutrophication: American Society of Limnology and Oceanography, v. 1, p. 63-83.

Boyle, J.M., Covay, K.J., and Bauer, D.P., 1984, Quantity and quality ofstreamflow in the White River basin, Colorado and Utah: U.S. Geological Survey Water-Resources Investigations Report 84-4022, 84 p.

Britton, L.J., Averett, R.C., and Ferreira, R.F., 1975, An introduction to the processes, problems, and management of urban lakes: U.S. Geological Survey Circular 601-K, 22 p. (Reprinted 1977).

Britton, L.J., and Greeson, P.E., eds., 1989, Methods for collection and analysis of aquatic biological and microbiological samples: U.S. Geological Survey Techniques of Water-Resources Investigations, bk. 5, chap. A4, 363 p.

Brown, Eugene, Skougstad, M.W., and Fishman, M.J., 1970, Methods for collec tion and analysis of water samples for dissolved minerals and gases: U.S. Geological Survey Techniques of Water-Resources Investigations, bk. 5, chap. Al, 160 p. [Out of print; available only in U.S. Depository Libraries; this is the only version that contains field methods]

Brune, G.M., 1953, Trap efficiency of reservoirs: American Geophysical Union Transactions, v. 34, no. 3, p. 407-418.

Butler, D.L., 1986, Sediment transport in the Colorado River near DeBeque,Colorado: U.S. Geological Survey Water-Resources Investigations Report 85-4266, 30 p.

Churchill, M.A., 1948, Analysis and use of reservoir sedimentation data with discussion by L.C. Gottschalk: Federal Inter-Agency Sedimentation Conference, Denver, Colo., 1947, Proceedings, p. 139-140.

Colby, B.R., 1956, Relationship of sediment discharge to streamflow: U.S. Geological Survey open-file report, 170 p.

___1963, Fluvial sediments a summary of source, transportation, deposition, and measurement of sediment discharge: U.S. Geological Survey Bulletin 1181-A, 47 p.

Colorado Department of Health, 1978, Water quality standards for Colorado: Denver, Water Quality Control Division, 47 p.

Dunst, R.C., Born, S.M., Uttormark, P.O., Smith, S.A., and others, 1974, Survey of lake rehabilitation techniques and experiences: Wisconsin Department of Natural Resources Technical Bulletin no. 75, 179 p.

Durfor, C.N., and Becker, Edith, 1964, Public water supplies of the 100 largest cities in the United States, 1962: U.S. Geological Survey Water-Supply Paper 1812, 364 p.

Elliott, J.G., and DeFeyter, K.L., 1986, Sediment-data sources and estimated annual suspended-sediment loads of rivers and streams in Colorado: U.S. Geological Survey Water-Resources Investigations Report 86-4344, 148 p.

Emmett, W.W., 1980, A field calibration of the sediment-trapping character istics of the Helley-Smith bedload sampler: U.S. Geological Survey Professional Paper 1139, 44 p.

Federal Water Quality Administration, 1971, Current practice in watermicrobiology: Washington, D.C., U.S. Department of Interior Training Manual, var. pag.

Ferguson, R.I., 1986, River loads underestimated by rating curves: Water Resources Research, v. 22, no. 1, p. 74-76.

64

Fishman, M. J. , and Friedman, L.C., eds., 1985, Methods for determination ofinorganic substances in water and fluvial sediments: U.S. GeologicalSurvey Open-File Report 85-495, 709 p. [Pending publication as U.S.Geological Survey Techniques of Water-Resources Investigations, bk. 5,chap. Al].

Goerlitz, D.F. and Brown, Eugene, 1972, Methods for analysis of organicsubstances in water: U.S. Geological Survey Techniques of Water- Resources Investigations, bk. 5, chap. A3, 40 p.

Greeson, P.E., 1971, Limnology of Oneida Lake with emphasis on factorscontributing to algae blooms: U.S. Geological Survey open-file report,185 p.

_____ed., 1982, Biota and biological principles of the aquatic environment:U.S. Geological Survey Circular 858-A, 49 p.

Guy, H.P., 1969, Laboratory theory and methods for sediment analysis: U.S.Geological Survey Techniques of Water-Resources Investigations, bk. 5,chap. Cl, 58 p.

______1970a, Fluvial sediment concepts: U.S. Geological Survey Techniques ofWater-Resources Investigations, bk. 3, chap. Cl, 55 p.

____1970b, Sediment problems in urban areas: U.S. Geological Survey Circular601-E, 8 p.

Guy, H.P., and Norman, V.W., 1970, Field methods for measurement of fluvialsediment: U.S. Geological Survey Techniques of Water-ResourcesInvestigations, bk. 3, chap. C2, 59 p.

Hem, J.D., 1985, Study and interpretation of the chemical characteristics ofnatural water (3d ed.): U.S. Geological Survey Water-Supply Paper 2254,263 p.

Hutchinson, G.E., 1957, A treatise on limnology--Volume I, Geography, physicsand chemistry: New York, John Wiley, 1,015 p.

___1967, A treatise on limnology--Volume II, Introduction to the lakebiology and the limnoplankton: New York, John Wiley, 1,115 p.

Hutchison, N.E., Compiler, 1975 WATSTORE users guide, volume 1: U.S.Geological Survey Open-File Report 75-426, 708 p.

McKee, J.E., and Wolf, H.W., 1963, Water quality criteria (2d ed): CaliforniaWater Resources Control Board Publication no. 3-A, 548 p. (Reprinted in1971).

National Academy of Sciences, 1972, Water quality criteria, 1972: Washington,B.C., U.S. Government Printing Office, Ecological Research Series,EPA-R3-73-033-March 1973, 594 p.

Odum, E.P., 1971, Fundamentals of ecology (3d ed): Philadelphia, W.B. SaundersCo., 574 p.

Palmer, C.M., 1977, Algae and water pollution: Cincinnati, Ohio, U.S.Environmental Protection Agency EPA-60019-77-036, 123 p.

Patrick, Ruth, and Reimer, C.W., 1966, Diatoms of the United States:Philadelphia, Academy of Natural Sciences, v. 1, no. 13, 688 p.

Piper, A.M., Garrett, A.A., and others, 1953, Native and contaminated groundwaters in the Long Beach-Santa Ana area, California: U.S. GeologicalSurvey Water-Supply Paper 1136, 320 p.

Prescott, G.W., 1939, Some relationships of phytoplankton to limnology andaquatic biology, in Problems of lake biology: American Association forthe Advancement of Science Publication no. 10, p. 65-78.

____1970, How to know the freshwater algae: Dubuque, Wm. C. Brown Co.,348 p.

65

Rudolfs, Willem and Heukelekian, H., 1967, Effect of sunlight and greenorganisms on re-aeration of streams, in Biology of Water Pollution: U.S.Department of Interior, Federal Water Pollution Control Administration,290 p.

Sawyer, C.N., 1947, Fertilization of lakes by agricultural and urban drainage:Journal of the New England Water Works Association, v. 61, no. 2,p. 109-127.

Strand, R.I. and Pemberton, E.L., 1982, Reservoir sedimentation Technicalguideline for the U.S. Bureau of Reclamation: Denver, Sedimentation andRiver Hydraulics Section, Hydrology Branch, Division of PlanningTechnical Services, Engineering and Research Center, 48 p.

U.S. Geological Survey, 1978-86, Dolores River basin, Green River basin, andSan Juan River basin in Water resources data Colorado, Water years1977-85: U.S. Geological Survey Water-Data Reports CO-78-3 throughCO-86-3, v. 3, 9 v.

___1987-88, Colorado River basin in Water resources data--Colorado, Wateryears 1986-87: U.S. Geological Survey Water-Data Reports CO-87-2 throughCO-88-2, v. 2, 2 v.

Van Liew, W.P. and Gesink, M.L., 1985, Preliminary assessment of the ground- water resources of the alluvial aquifer, White River Valley, Rio BlancoCounty, Colorado: U.S. Geological Survey Water-Resources InvestigationsReport 84-4307, 82 p.

Verduin, Jacob, 1956, Primary production in lakes: Limnology andOceanography, v. 1, no. 2, p. 85-91.

Vollenweider, R.A., 1968, Scientific fundamentals of the eutrophication oflakes and flowing water with particular reference to nitrogen andphosphorus as factors in eutrophication: Paris, France, Organization forEconomic Cooperation and Development, 252 p.

Warren, C.E., Doudoroff, Peter, and Shumway, D.L., 1973, Development ofdissolved oxygen criteria for freshwater fish: Washington, D.C., U.S.Environmental Protection Agency, 121 p.

Welch, E.B., 1969, Factors initiating phytoplankton blooms and resultingeffects on dissolved oxygen in Duwamish River estuary, Seattle, Wash.:U.S. Geological Survey Water-Supply Paper 1873-A, 62 p.

Wetzel, R.G., 1983, Limnology (2d ed.); Philadelphia, W.B. Saunders Co.,767 p.

Wilhm, J.L., and Dorris, T.C., 1968, Biological parameters for water qualitycriteria: Biological Science, v. 18, no. 6, p. 477-480.

Yoshimura, S., 1938, Dissolved oxygen of the lake waters of Japan:in section C of Science Reports [series]: Tokyo Bunrika Daigaku, [nowTokyo Kyoiku Daigaku], v. 2, no. 8, p. 63-277.

66

HYDROLOGIC DATA

67

Table II.--Water-quality data for selected depths in Kenney Reservoir,site 1, water years 1985-87

[ft, feet; °C, degrees Celsius; pS/cm, microSiemens per centimeter at 25 degrees Celsius; mg/L, milligrams per liter]

Date

01/16/8501/16/8501/16/8501/16/8501/16/8501/16/8501/16/8501/16/8501/16/8501/16/8501/16/8501/16/8501/16/8501/16/8501/16/85

04/24/8504/24/8504/24/8504/24/8504/24/8504/24/8504/24/8504/24/8504/24/8504/24/8504/24/8504/24/85

06/04/8506/04/8506/04/8506/04/8506/04/8506/04/8506/04/8506/04/8506/04/8506/04/8506/04/8506/04/8506/04/85

Time (hours)

142014301440144514471450145515001505151015151520152515301535

101510201025103010351040104510501055110011051110

1245125012551300130513101315132013251330133513401345

Sample depth (ft)

024678

101520253035404547

0247

1015202530354045

0247

101520253035404549

Temper ature (°C)

0.00.00.00.00.00.00.00.00.00.00.00.00.01.75.1

8.08.08.08.08.07.87.87.87.77.67.57.0

17.515.814.013.813.513.513.113.012.511.111.010.910.8

Specific conduct

ance (MS/cm)

741741741745745745749756760779790832905972

1,550

739739733733733735735735740736736770

448453457452456453452450444433427430447

PH (units)

8.38.38.38.38.38.38.38.38.38.38.38.38.18.07.4

8.48.48.48.48.48.48.48.48.48.48.48.4

8.38.38.38.38.38.38.38.38.38.38.38.38.3

Oxygen, dissolved (mg/L)

9.69.69.59.59.49.49.49.59.59.39.18.97.55.30.0

9.09.09.08.98.98.98.98.98.98.98.88.8

8.08.18.38.38.38.38.38.38.48.58.58.47.9

Oxygen, dissolved saturation (percent)

79797979787878797977757462460

939393929291919191919089

1011009898979796969594949387

68

Table 11.--Water"quality data for selected depths in Kenney Reservoir, site 1, water years 1985-87- -Continued

Date

06/27/8506/27/8506/27/8506/27/8506/27/8506/27/8506/27/8506/27/8506/27/8506/27/8506/27/8506/27/85

07/19/8507/19/8507/19/8507/19/8507/19/8507/19/8507/19/8507/19/8507/19/8507/19/8507/19/8507/19/85

08/07/8508/07/8508/07/8508/07/8508/07/8508/07/8508/07/8508/07/8508/07/8508/07/8508/07/8508/07/85

08/28/8508/28/8508/28/8508/28/8508/28/8508/28/85

Time (hours)

131013151320132513301335134013451350135514001405

123012351240124512501255130013051310131513201325

123012351240124512501255130013051310131513201325

121012151220122512301235

Sample depth (ft)

0247

1015202530354043

0247

1015202530354045

0247

1015202530354045

0247

1015

Temper ature (°C)

18.816.816.816.516.415.515.014.514.214.114.013.8

23.823.823.423.123.022.922.721.521.120.820.519.3

22.522.021.821.621.521.420.920.020.019.619.218.5

21.020.820.320.120.020.0

Specific conduct

ance (MS/cm)

431434434436436471484496498500500505

660660655655649648648689698694698693

699704705706704704706713708712713718

760760766768766761

PH (units)

8.48.48.48.48.38.38.38.38.38.38.38.3

8.68.68.68.68.68.68.68.58.58.58.58.4

8.58.58.58.58.58.58.48.48.48.48.38.2

8.48.48.48.48.48.4


8.27.87.87.87.67.67.67.77.77.87.87.8

9.08.98.98.98.98.58.47.66.96.86.86.8

9.49.59.59.59.39.18.57.67.27.06.85.4

8.07.97.98.08.07.9


1079898979593929292939292

13012912812712712111910595939290

13313313213212912611610297939070

110108107108107106

69

Table 11. Water-quality data for selected depths in Kenney Reservoir, site 1, water years 1985-87 Continued

Date

08/28/8508/28/8508/28/8508/28/8508/28/8508/28/85

09/06/8509/06/8509/06/8509/06/8509/06/8509/06/8509/06/8509/06/8509/06/8509/06/8509/06/8509/06/8509/06/85

09/17/8509/17/8509/17/8509/17/8509/17/8509/17/8509/17/8509/17/8509/17/8509/17/8509/17/8509/17/8509/17/85

10/21/8510/21/8510/21/8510/21/8510/21/8510/21/8510/21/8510/21/8510/21/8510/21/8510/21/8510/21/85

Time (hours)

124012451250125513001305

1100110511101115112011251130113511401145115011551200

1130113511401145115011551200120512101215122012251230

123012351240124512501255130013051309131213151320

Sample depth (ft)

202530354042

0247

101520253035404345

0247

101520253035404245

0247

1015202530354043

Temper ature(°c)

20.019.018.818.318.118.0

19.119.119.119.019.019.019.019.018.918.118.017.917.9

16.116.116.116.116.016.016.014.814.514.213.813.613.6

8.68.58.58.58.48.28.08.08.08.08.08.0

Specific conduct

ance (MS/cm)

755768772797803803

835835837837837841841841841902918932932

899899899899895895895906915913917920920

816820823823821825828828828828828820

pH (units)

8.48.38.28.28.28.2

8.38.38.38.38.38.38.38.38.28.18.18.17.8

8.38.38.38.38.38.38.38.38.38.38.28.27.7

8.48.48.48.48.48.48.48.48.48.48.47.9


7.85.34.85.15.24.8

6.66.66.56.66.66.66.66.66.34.03.63.62.3

8.18.18.18.08.08.08.07.17.17.17.06.93.7

9.49.49.59.59.59.49.49.39.39.39.36.0

Oxygen , dissolved saturation (percent)

1057063666762

87878687878787878352464630

10010010099999999868584828143

989899999998979696969662

70

Table 11. --Water-quality data for selected depths in Kenney Reservoir, site l f water years 1985-87--Continued

Date

04/24/8604/24/8604/24/8604/24/8604/24/8604/24/8604/24/8604/24/8604/24/8604/24/8604/24/8604/24/86

06/03/8606/03/8606/03/8606/03/8606/03/8606/03/8606/03/8606/03/8606/03/8606/03/8606/03/8606/03/86

06/24/8606/24/8606/24/8606/24/8606/24/8606/24/8606/24/8606/24/8606/24/8606/24/8606/24/8606/24/86

07/22/8607/22/8607/22/8607/22/8607/22/8607/22/86

Time (hours)

122012251230123512401245125012551300130513101315

114011451150115512001205121012151220122512301235

111511201125113011351140114511501155120012051210

105010551100110511101115

Sample depth (ft)

0247

1015202530354043

0247

1015202530354045

0247

1015202530354045

0247

1015

Temper ature (°C)

12.012.012.011.811.511.010.610.09.59.09.08.5

16.514.714.514.414.314.114.013.313.012.712.312.0

17.817.317.116.916.616.516.416.215.014.514.013.9

21.021.021.020.620.520.4

Specific conduct

ance (MS/cm)

865865865865867871876874881876870876

378374378379380382382384384385403410

390391392389387388389389384388391398

596596596595593593

pH (units)

8.58.58.58.58.58.58.58.58.58.58.48.4

8.28.28.28.28.28.28.28.28.28.28.28.2

8.28.28.28.28.28.28.28.28.28.28.28.1

8.58.58.58.58.58.5


9.49.49.49.49.49.49.49.49.59.49.49.3

8.28.28.28.28.28.28.18.08.07.97.67.4

8.08.08.08.08.08.08.07.97.97.87.67.4

8.48.48.48.58.38.3


10610610610610510410310210210010097

1029998989897969393918784

1031021011011001001009896939087

115115115115112112

71

Table II, Water-quality data for selected depths in Kenney Reservoir/ site l t water years 1985-87--Continued

Date

07/22/8607/22/8607/22/8607/22/8607/22/8607/22/86

08/20/8608/20/8608/20/8608/20/8608/20/8608/20/8608/20/8608/20/8608/20/8608/20/8608/20/8608/20/86

09/16/8609/16/8609/16/8609/16/8609/16/8609/16/8609/16/8609/16/8609/16/8609/16/8609/16/8609/16/86

06/19/8706/19/8706/19/8706/19/8706/19/8706/19/8706/19/8706/19/8706/19/8706/19/8706/19/8706/19/87

Time (hours)

112011251130113511401145

122012251230123512401245125012551300130513101315

113511401145115011551200120512101215122012251230

132013251330133513401345135013551400140514101415

Sample depth (ft)

202530354045

0247

1015202530354042

0247

1015202530354043

0247

1015202530354045

Temper ature (°C)

20.019.519.019.018.818.5

22.022.022.022.022.022.022.021.020.019.219.018.9

16.316.316.116.116.016.016.016.015.915.815.115.1

20.019.618.718.618.518.518.316.515.815.515.014.0

Specific conduct

ance (pS/cm)

626632635635636636

740740740740740736736734744756757757

790790799799793793793793793782791791

511511509505506506503497495493496531

pH (units)

8.48.38.38.38.38.3

8.58.58.58.58.58.58.58.48.48.38.28.2

8.48.48.48.48.48.48.48.48.48.48.48.4

8.88.88.88.88.88.88.88.28.07.97.97.8

Oxygen , dissolved (mg/L)

8.37.06.96.96.96.7

8.38.48.38.38.38.38.37.16.15.14.44.0

7.67.67.67.57.57.47.57.87.57.57.67.6

8.99.19.39.18.68.58.25.04.64.54.53.6


1119391919087

1161171161161161161169782675853

949494939391939692929292

1191201211181121101066256555442

72

Table 11. --Water-quality data for selected depths in Kenney Reservoir, site l f water years 1985-87--Continued

Date

07/15/8707/15/8707/15/8707/15/8707/15/8707/15/8707/15/8707/15/8707/15/8707/15/8707/15/8707/15/87

08/13/8708/13/8708/13/8708/13/8708/13/8708/13/8708/13/8708/13/8708/13/8708/13/8708/13/8708/13/87

09/03/8709/03/8709/03/8709/03/8709/03/8709/03/8709/03/8709/03/8709/03/8709/03/8709/03/8709/03/87

Time (hours)

145515001505151015151520152515301535154015451550

143014351440144514501455150015051510151515201525

121012151220122512301235124012451250125513001305

Sample depth (ft)

0247

1015202530354045

0247

1015202530354045

0247

1015202530354045

Temper ature(°c)

22.121.521.020.820.420.119.819.119.018.618.217.9

21.621.721.521.521.221.121.121.121.020.320.019.6

19.819.519.219.018.818.718.618.517.817.017.016.8

Specific conduct

ance (MS/cm)

759753758753754759747757757752758770

826826830830828828828828832825826829

814824814809810806809809813826817825

pH (units)

8.68.58.58.58.58.58.48.38.38.38.28.2

8.48.48.48.48.48.48.48.48.48.28.18.0

8.48.48.48.58.48.58.48.48.38.28.28.1


7.67.67.87.77.37.15.84.94.44.03.93.4

6.96.96.86.86.96.96.96.96.84.33.52.5

7.97.98.08.28.28.28.18.06.05.55.04.0


1061041071049995776458525044

969694949595959593584733

10510410510610610610410277706350

73

Table 12.--Water-quality data for selected depths in Kenney Reservoir,site 2, water years 1985-87

[ft, feet; °C, degrees Celsius; pS/cm, microsiemens per centimeter;mg/L, milligrams per liter]

Date

04/24/8504/24/8504/24/8504/24/8504/24/8504/24/85

06/04/8506/04/8506/04/8506/04/8506/04/85

06/27/8506/27/8506/27/8506/27/8506/27/8506/27/85

07/19/8507/19/8507/19/8507/19/8507/19/85

08/07/8508/07/8508/07/8508/07/8508/07/85

08/28/8508/28/8508/28/8508/28/8508/28/85

09/06/8509/06/8509/06/8509/06/8509/06/85

Time (hours)

115512001205121012151225

14301435144014451450

144014451450145515001505

13551400140514101415

13501355140014051410

14301435144014451450

12151220122512301235

Sample depth (ft)

0247

1014

02468

0247

1013

02479

02478

02479

02479

Temper ature(°c)

8.48.28.07.97.97.9

14.814.414.114.114.1

15.014.814.514.213.812.8

24.423.021.720.520.5

22.522.321.820.120.0

21.821.821.820.020.0

19.219.119.018.915.2

Specific conduct

ance (pS/cm)

847849849843840843

452456460460457

533535534531528529

685709722730730

697700699706708

848848848877877

907907907895923

pH (units)

8.48.48.48.48.48.5

8.38.38.38.38.3

8.48.48.48.48.48.4

8.68.68.68.68.6

8.58.58.48.48.3

8.58.48.48.48.5

8.58.58.58.58.4


9.89.79.79.79.79.6

8.18.18.28.28.2

8.48.58.58.58.68.4

9.39.29.39.39.0

8.68.68.58.58.2

8.28.28.18.58.5

8.18.18.17.97.7


10210110010010099

9896969696

10210210210110197

136131129126122

121121118114110

114114113114114

10710710710494

74

Table 12. Water-quality data for selected depths in Kenney Reservoir, site 2, water years 1985-87--Continued

Date

09/17/8509/17/8509/17/8509/17/85

10/21/8510/21/8510/21/8510/21/8510/21/8510/21/85

04/24/8604/24/8604/24/8604/24/86

06/03/8606/03/8606/03/8606/03/8606/03/86

06/24/8606/24/8606/24/8606/24/8606/24/86

07/22/8607/22/8607/22/8607/22/8607/22/86

08/20/8608/20/8608/20/86

09/16/8609/16/8609/16/8609/16/86

Time (hours)

1255130013051310

140014051410141514201425

1330133513401345

13051310131513201325

12401245125012551300

12151220122512301235

140014051410

1300130513101315

Sample depth (ft)

0247

0247

1013

0247

02478

0247

10

0247

10

024

0247

Temper ature (°C)

15.015.015.015.0

8.58.58.58.58.18.1

11.811.811.811.8

17.617.015.015.014.9

16.116.016.016.016.0

20.620.620.320.019.0

22.222.222.2

15.015.015.015.0

Specific conduct ance

(jjS/cm)

868868868868

794794788788796796

721718718718

390389392387385

404402402402402

641641642644637

736736736

794794794794

pH (units)

8.38.38.38.3

8.58.58.58.58.48.4

8.48.48.48.4

8.28.28.28.28.2

8.38.38.38.38.3

8.58.58.58.58.5

8.48.48.4

8.58.58.58.5


8.07.97.98.0

10.010.010.110.19.89.4

9.08.98.98.9

7.87.87.97.97.8

8.18.18.08.08.0

7.97.97.97.97.8

7.27.37.3

8.78.78.88.8


97969697

10410410610610197

101100100100

10098969694

100100999999

107107107106103

101102102

105105106106

75

Table 12.--Water-quality data for selected depths in Kenney Reservoir, site 2, water years 1985-87--Continued

Time Sample Temper- Date /v""'"" \ depth ature

(hours) * (o C )

Specific conduct

ance (pS/cm)

PH (units)

Oxygen,dissolved(mg/L)

07/15/87 07/15/87 07/15/87

08/13/87 08/13/87 08/13/87

09/03/87 09/03/87 09/03/87

132513301335

131513201325

110011051110

23.022.822.0

18.518.018.0

20.219.017.3

788792806

809805805

814814807

8.4 8.4 8.4

8.4 8.48.4

8.58.4 8.4

6.9 7.1 7.3

7.0 6.5 6.4

7.4 7.1 6.6


06/19/8706/19/8706/19/87

114511551205

024

18.017.817.8

575582582

8.68.68.6

8.08.08.0

103103103

97100101

918382

1009284

76

Table 13. Selected water-quality data for near-surface and near-bottom depths in Kenney Reservoir, site 1, water years 1985-87

[ft, feet; BOD, biochemical oxygen demand; mg/L, milligrams per liter; mm of HG, millimeters of mercury; in., inches; NTU, nephelometric turbidity units; °C, degrees Celsius; col/100 mL, colonies per 100 milliliters; <, less than; >, greater than; , no data]

Date (day)

01/16/8501/16/85

04/24/8504/24/85

06/04/8506/04/85

06/27/8506/27/85

07/19/8507/19/85

08/07/8508/07/85

08/28/8508/28/85

09/06/8509/06/85

09/17/8509/17/85

10/21/8510/21/85

04/24/8604/24/86

06/03/8606/03/86

06/24/8606/24/86

07/22/8607/22/86

08/20/8608/20/86

09/16/8609/16/86

06/19/8706/19/87

07/15/8707/15/87

08/13/8708/13/87

09/03/8709/03/87

Sample Time depth

(ft)

14301535

10201110

12501340

13151405

12351325

12351325

12151305

11051155

11351225

12351315

12251310

11451230

11201205

10551140

12251310

11401225

13251415

15001550

14351525

12151305

247

245

245

243

245

245

242

243

242

240

240

240

240

240

240

240

245

245

245

245

BOD, 5-day (mg/L)

1.02.0

1.42.3

1.51.1

1.21.1

1.21.1

1.71.4

.91.3--

1.11.2

1.41.5

.9

.9

1.2.7

1.0.8

1.31.1

1.31.2

.9

.8

.81.2

1.31.0

1.41.2

1.71.3

BOD, 20-day (mg/L)

4.6

3.24.9

3.02.5

2.83.0

3.03.1

3.52.6

2.24.0

2.63.0

3.43.3

2.42.3

3.32.9

2.82.5

3.22.4

3.03.0

2.22.0

1.93.0

2.92.9

3.23.2

3.13.0

Baro metric pres sure (mm of HG)

630

627--

625

635--

625--

628--

629

626--

621--

623

623--

625--

628--

629--

630

625--

625

625

623

626--

Trans par ency,

Secchi disk (in.)

_-

17--

13

20--

70--

41--

144

126

96--

32

29

11

13

70--

37

35--

47

66

66--

46--

Solids, Tur- residue bid- at ity 105 °C, (NTU) suspended

(mg/L)

3.522.0

13.014.0

23.023.0

13.025.0

2.69.2

7.613.0

1.212.0

2.07.6

2.05.6

8.08.0

8.07.5

45.040.0

23.025.0

3.018.0

11.021.0

8.222.0

4.720.0

3.57.3

4.09.5

5.218.0

--

3139

21186

2137

38

1623

113

36

1011

58

6139

3535

550

825

923

317

913

12

418

Coliform bac teria , total (col/

100 mL)

<2<3

>250480

>70160

250750

536

<4<4

200550

42120

1515

1010

160160

10050

580

<45

325

--

----

----

----

Coliform bac

teria, fecal (col/

100 mL)

<2<3

250320

60100

6260

<423

<4<4

<4<4

----

<4<4

33

<5<5

14060

4545

<423

<4<4

<43

----

--

----

----

Strepto cocci

bacteria, fecal (col/

100 mL)

147<3

170360

9084

64680

<4260

84

832

----

1040

3740

550

190180

55120

<484

<45

1024

----

----

--

----

77

Table 14. Selected water-quality data for near-surface and near-bottom depths in Kenney Reservoir, site 2, water years 1985-87

[ft, feet; BOD, biochemical oxygen demand; mg/L, milligrams per liter; mm of HG, millimeters of mercury; in., inches; NTU, nephelometric turbidity units; °C, degrees Celsius; col/100 ml, colonies per 100 milliliters; <, less than; >, greater than; , no data]

Date (day)

04/24/85 04/24/85

06/04/85 06/04/85

06/27/85 06/27/85

07/19/85 07/19/85

08/07/85 08/07/85

08/28/85 08/28/85

09/06/85 09/06/85

09/17/85 09/17/85

10/21/85 10/21/85

04/24/86 04/24/86

06/03/86 06/03/86

06/24/86 06/24/86

07/22/86 07/22/86

08/20/86

09/16/86 09/16/86

06/19/87

07/15/87

08/13/87

09/03/87

Sample Time depth

(ft)

1200 1225

1435 1450

1445 1505

1400 1415

1355 1405

1435 1450

1220 1235

1300 1310

1405 1420

1335 1345

1310 1320

1245 1300

1220 1235

1405

1305 1315

1155

1330

1320

1105

2 14

2 8

2 13

2 9

2 7

2 9

2 9

2 7

2 10

27

2 7

210

2 10

2

2 7

2

2

2

2

BOD, 5-day (mg/L)

0.9 1.2

1.1 1.6

1.4 1.6

1.4 1.4

1.3 1.3

1.3 1.1

--

1.2 1.5

1.2 1.2

1.8 2.3

.8

.8

.8

.8

1.1 1.3

1.3

1.0 1.0

.8

1.3

1.4

1.3

BOD, 20-day (mg/L)

2.7 3.3

3.2 3.6

3.4 4.2

3.3 3.4

2.3 2.4

2.9 2.6

--

3.0 3.1

3.0 2.8

4.2 5.3

2.3 2.7

1.8 2.0

2.6 2.9

3.3

2.5 2.8

1.9

3.2

3.7

3.0

Baro metric pres sure (mm of HG)

627

625

625

625

628

629

626

621

623

623

625

628

629

630

625

625

625

623

626

Trans par ency,

Secchi disk (in.)

7

6

10

37

25

46

25

12

10

2

6

11

17

6

14

19

17

9

12

Solids , Tur- residue bid- at ity 105 °C,

(NTU) suspended (mg/L)

80.0 250

100 120

50 55

7.4 22

1215

6.0 12.0

12 60

40 36

30 23

220 200

70 80

40 50

18 55

95

28 21

14

15

48

30

165 778

103 276

86 114

1 154

15 27

6 9

--

46 53

73 40

494 624

144

86 130

22 115

96

46 66

21

15

58

36

Coliform bac teria, total (col/

100 mL)

400 >200

>320 >240

400 1,100

55 130

40 47

200 150

440 360

50 50

800

150 400

200 120

15 250

27

14 20

--

--

--

--

Coliform bac teria , fecal (col/

100 mL)

100 140

320 >60

290 380

7 80

<4 23

4 3

--

130 120

33 3

20

100 220

150 100

6 52

21

12 16

--

--

--

--

Strepto cocci

bacteria, fecal (col/

100 mL)

280 440

190 230

720 >920

40 210

8 80

23 230

--

460 420

70 87

960

170 220

200 190

44 260

33

52 52

--

--

--

--

78

Table 15. Ta

xa,

numbers, an

d percent

composition

of phytoplankton at

sites

1 an

d 2

in Kenney

Reservoir, wa

ter

year

s 19

85-8

7

[Cel

ls,

cell

numbers

per

mill

ilit

er;

ft,

feet

; % Co

mp,

perc

ent

composition; mg/L,

milligrams pe

r liter;

|jg/

L, mi

crog

rams

per

lite

r; --,

no da

ta.

All

cell

nu

mber

s, subtotals, and

totals ar

e rounded

to two

sign

ific

ant

figu

res

(Bri

tton

and

Greeson, 1989), therefore, percentage totals do not

always equal

100]

PHYLUM

ORDER

Genu

s species

Kenn

ey Reservoir (s

ite

1)2-

ft

depth

Composite

(0-1

0 ft

)

Kenn

ey Reservoir

(sit

e 2)

2-ft

Composite

depth

(0-1

0 ft

)Cells

% Co

mp

Cells

% Comp

Cell

s % Co

mp

Cells

% Co

mp

BACILLARIOPHYTA

(DIA

TOMS

) 31

11

.9

28

CENTRALES

0 0.0

0 Cy

clot

ella

bod

anic

a Cyclotella k

utzingiana

Cyclotella meneghiniana

Cyclotella ps

eudo

stel

lige

ra

Cyclotella st

elli

gera

Me

losi

ra gr

anul

ata

var.

an

gust

issi

ma

Melo

sira

it

alic

a Me

losi

ra li

rata

Me

losi

ra sp.

Rhizosolenia eriensis

Stephanodiscus alpinus

Stephanodiscus astrea

Stephanodiscus ni

agar

ae

Stephanodiscus tenuis

Stephanodiscus sp.

PENN

ALES

31

11

.9

28

Achnanthes affinis

Achn

anthes

lanceolata

Achn

anthes

minutissima

Amphora

perpusilla

Amphora

vene

ta

Amphora

sp.

Aste

rion

ella

formosa

14

5.4

Cocconeis

placentula

Janu

ary

16,

1985

14.7

0.0

14.7

Tabl

e 15. Taxa,

numbers, an

d percent

composition

of phytoplankt

on at

sites

I an

d 2

in Kenney

Rese

rvoi

r, wa

ter

year

s 19

85-S

7--C

onti

nued

PHYL

UM

ORDER

Genus

species

Kenney R

eser

voir

(site

1)Kenney R

eser

voir

(s

ite

2)2-

ft

dept

hComposite

(0-10

ft)

2-ft

depth

Composite

(0-1

0 ft)

Cells

% C

omp

Cells

% C

omp

Cells

% Comp

Cells

% C

omp

00 o

BACI

LLAR

IOPH

YTA

(DIATOMS) Continued

PENN

ALES

--Continued

Cyli

ndro

thec

a gracilis

Cyli

ndro

thec

a sp.

Cyma

topl

eura

so

lea

Cy

mbel

la af

fini

s Cy

mbel

la m

inut

a Cy

mbel

la m

inuta

f. latens

Cymb

ella

min

uta

var.

silesica

Cy

mbel

la si

nuat

a Di

atom

a an

ceps

Diat

oma

hiemale

var.

me

sodo

n Diatoma

tenu

e va

r. elongation

Diat

oma

vulgare

Dipl

onei

s sp.

Epit

hemi

a so

rex

Euno

tia

sp.

Frag

ilar

ia ca

puci

na

Frag

ilar

ia cr

oton

ensi

s Fr

agil

aria

pinnata

Frag

ilar

ia v

auch

eria

e Go

mpho

nema angustatum

Gyro

sigm

a sp

ence

rii

Hann

aea

arcus

Hann

aea

arcus

var.

amphioxys

Hann

aea

arcu

s va

r. arcus

Hantzsch

ia amphioxys

Meridion

circulare

Navi

cula

ar

vens

is

Navi

cula

ca

pita

ta

Navicula

cry

ptoc

epha

la

January

16,

1985

--Co

ntin

ued

1.6

3.7

Navi

cula

cryptocephala

var.

ve

neta

Navi

cula

ga

stru

mNavicula h

eufieri

Navi

cula

la

nceo

lata

Navi

cula

luzonensis

Navi

cula

menisculus

var.

up

sali

ensi

sNa

vicu

la m

inima

Navi

cula

min

uscu

laNa

vicu

la m

utica

Navi

cula

notha

Navi

cula

pel

lico

saNa

vicu

la p

upula

Navi

cula

ra

dios

aNa

vicu

la ra

dios

a va

r. teneJJa

Navi

cula

rhyncocephala

Navi

cula

sabinians

var.

intermedia

Navi

cula

ta

ntul

aNa

vicu

la tr

ipun

ctat

aNa

vicu

la vi

ridu

laNa

vicu

la viridula va

r. av

eame

00 HJ

Navi

cula

viridula v

ar.

aven

acea

Na

vicu

la sp.

Nitz

schi

a acicularis

Nitz

schi

a co

mmun

isNi

tzsc

hia

diss

ipat

a 3

1.2

1 0.5

Nitz

schi

a filiformis

Nitz

schi

a fr

ustu

lum

1 2.

7 7

3.7

Nitz

schi

a ha

ntzs

chia

na

Nitz

schi

a hu

ngar

ica

Nitz

schi

a ig

nora

ta

Nitz

schi

a in

term

edia

Ni

tzsc

hia

latens

Nitz

schi

a linearis

Nitzschia

long

issi

ma v

ar.

reversa

Nitz

schi

a mi

croc

epha

la

Nitz

schi

a pa

lea

Nitz

schi

a pa

leac

ea

Nitz

schi

a pusilla

Nitz

schi

a ro

mana

7

2.7

3 1.6

Nitz

schi

a th

erma

lis

Nitz

schi

a tr

ybli

onel

la va

r. debilis

Tabl

e 15. Ta

xa,

numbers, an

d pe

rcen

t composition

of phytoplankton a

t sites

1 an

d 2

in Kenney

Reservoir, wa

ter

year

s 19

85-8

7 Continued

PHYLUM

ORDER

Genus

spec

ies

Kenney Reservoir

(sit

e 1)

Kenney Reservoir (s

ite

2)2-

ft

Comp

osit

e 2-ft

Comp

osit

edepth

(0-1

0 ft

) depth

(0-1

0 ft

)Cells

% Co

mp

Cells

% Comp

Cell

s % Comp

Cells

% Comp

oo

BACI

LLAR

IOPH

YTA

(DIA

TOMS

)--C

onti

nued

PENNALES--

Continued

Nitz

schi

a sp.

Pleurosigma

delicatalum

Rhoicosphenia

curv

ata

Rhopalodia mu

scul

us

Suri

rell

a angustata

Suri

rell

a ov

alis

Su

rire

lla

ovata

Synedra

acus

Syne

dra

delicatissima

Synedra

fasc

icul

ate

Syne

dra

minu

scul

a Snyedra

radiens

Synedra

rumpens

Syne

dra

rump

ens

var.

familiaris

Sy

nedr

a ul

naSynedra

ulna v

ar.

cont

ract

a Sy

nedr

a ulna v

ar.

dani

ca

Syne

dra

ulna

var

. ox

yrhy

nchu

s Synedra

sp.

Thalassiosira

fluv

iati

lis

CHLOROPHYTA

(GREEN A

LGAE)

7 Ac

tina

stru

m hantzschii

Actinastrum

sp.

Ankistrodesmus convolutus

Ankistrodesmus co

nvol

utus

v.

acicularis

Ankistrodesmus falcatus

Ankistrodesmus falcatus va

r. acicuJaris


r. mi

rabi

lis

Janu

ary

16,

1985 Continued

2.7

3.7

0.0

Cart

eria

sp.

Chla

mydo

mona

s sp.

7 2.7

Chlo

rell

a sp.

Chloroco

ccum hum

icol

aCh

loro

cocc

um sp.

Chlorogo

nium s

pirale

Chlorogo

nium sp

. --

Chod

atel

la q

uadr

iset

aClosteri

um s

p.Co

ccom

yxa

minor

Cruc

igen

ia qu

adra

taDictyosp

haer

ium

ehrenbergianum

Dictyosp

haer

ium pu

lche

llum

Dictyosp

haer

ium

sp.

Gloe

ocys

tis

sp.

Gole

nfci

nia

radiata

Gole

nkin

iops

is solitaria

Gonium sp.

Kirc

hner

iell

a co

ntor

taMesotaen

ium

sp.

Wicratin

ium pusillum

Micratin

ium

sp.

Moug

eoti

a sp.

Oocytis

sp.

Pand

orin

a mo

rum

Phacotus

le

ntic

ular

isPh

acot

us sp.

Plat

ymon

as sp.

Pter

omon

as sp.

Scen

edes

mus

anna

tus

Scen

edes

mus

biju

gaSc

ened

esmu

s di

morp

hus

Scen

edes

mus

quad

rica

uda

Scen

edes

mus

serr

atus

Scen

edes

mus

sp.

Schr

oede

ria

juda

yiSc

hroe

deri

a se

tige

raSelenast

rum mi

nutu

mSp

haer

ocys

tis

schroeteri

Staurast

rum

sp.

Treiubaria

sp.

--

Table 15. Ta

xa,

numbers, an

d pe

rcen

t composition

of phytoplankton at

si

tes

I an

d 2

in K

enne

i/ -

Rese

rvoi

r/ wa

ter

year

s 19

85-8

7 Continued

PHYLUM

ORDE

RGenus

spec

ies

Kenney Reservoir

(sit

e 1)

Kenney Reservoir (s

ite

2)2-

ft

depth

Composite

(0-1

0 ft)

2-ft

de

pth

Composite

(0-1

0 ft

)Cells

% Co

mp

Cell

s % Co

mp

Cells

% Comp

Cells

% Co

mp

oo

CHRYSOPHYTA

(GOLDEN-BROWN

ALGA

E)

Dinojbryon d

ivergens

Kephyrion

spir

ale

Keph

yrio

n sp.

Mallomonas acaroides

Mallomonas akrokonos

Mallomonas gl

obos

a Ma

llom

onas

sp.

Pleurosigma

deli

catu

lum

PI euros

igma sp.

Ochromonas sp.

CYAN

OPHY

TA (B

LUE-

GREE

N ALGAE)

Ana&

aena

sp.

Aphanocapsa

deli

cati

ssim

a Aphanocapsa

sp.

Aphanoth

ece

sp.

Chro

ococ

cus

disp

ersu

s Ch

rooc

occu

s limneticus

Chro

ococ

cus

sp.

Dact

ylococcopsis fascicularis

Dact

yloc

occo

psis

sp.

Lyng

bya

limnetica

Lyng

bya

nana

Marssoniella el

egan

s Oscillatoria an

gust

a Oscillatoria an

gust

issi

ma

Osci

llat

oria

limnetica

Oscillatoria tenuis

Osci

llat

oria

sp.

0.0

January

16,

1985--Continued

0 0.0

8532

.712

063

.2

147.

4

8532

.7

Phor

midi

um sp.

--

--

110

57.9

Syne

choc

occu

s li

near

e Sy

nech

ococ

cus

sigmoidea

Syne

choc

occu

s sigmoidea

f. mi

nor

Syne

choc

occu

s sp.

CRYP

TOPH

YTA

(CRYPTOMONADS)

140

53.8

45

23.7

Chroomonas

sp.

85

32.7

10

5.3

Cryp

tomo

nas

erosa

Cryp

tomo

nas

mars

onii

Cryptomonas

ovat

a 14

5.

4 7

3.7

Cryptomonas

rostrata

Cryp

tomo

nas

rost

rati

form

isCr

ypto

mona

s sp

. 43

16.5

28

14.7

Rh

odomonas mi

nuta

EUGLENOPHYTA (E

UGLE

NOID

S)

0 0.

0 0

0.0

Eugl

ena

acus

Eugl

ena

viridis

Eugl

ena

sp.

Trac

helo

mona

s sp.

PYRR

HOPH

YTA

(DINOFLAGELLATES)

0 0.

0 0

0.0

Cera

tium

hir

undi

nell

a Gymnodiniu

m sp.

Peri

dini

um bic

eps

Peri

dini

um i

ncon

spic

ua

Peri

dini

um sp.

Tota

l cells

and

percent

comp

osit

ion

260

101

190

102

Numb

er of

sp

ecie

s 9

--

11Di

vers

ity

inde

x (D

I) at

sp

ecie

s level

2.41

--

2.24

Biomass

(mg/L

dry

weight)

<0.1

--

<0

.1

Chlo

roph

yll

a (M8/L)

Chlo

roph

yll

b (M

g/L)

Chlo

roph

yll

c (pg/L)

00

Tabl

e 15. Taxa,

numb

ers,

an

d percent

composition

of phytoplankt

on at si

tes

1 an

d 2

in Kenney

Rese

rvoi

r, wa

ter

years

1985

-87-

-Con

tinu

ed

PHYLUM

ORDER

Genu

s species

Kenn

ey Res

ervo

ir (s

ite

1)2-

ft

dept

hCe

lls

% Co

mp

Composite

(0-1

0 ft)

Cells

% Co

mp

Kenn

ey Reservoir (s

ite

2)2-ft

depth

Cells

% Co

mp

Composite

(0-1

0 ft)

Cells

% Co

mp

BACI

LLAR

IOPHYT

A (D

IATO

MS)

850

43.1

290

CENTRALES

740

37.6

200

Cycl

otel

la b

odan

ica

400

20.3

200

Cycl

otel

la k

utzi

ngia

na

Cycl

otel

la m

eneghiniana

Cycl

otella

pseudostelligera

Cycl

otel

la st

elli

gera

Me

losi

ra granulata

var.

an

gustissima

Melo

sira it

alic

a 160

8.1

Melo

sira li

rata

180

9.1

Melo

sira sp.

Rhiz

osolen

ia eriensis

Step

hano

disc

us al

pinu

s St

epha

nodi

scus

as

trea

St

epha

nodi

scus

ni

agar

ae

Step

hano

disc

us tenuis

Step

hanodiscus sp.

PENNALES

110

5.6

93

Achn

anthes

af

fini

s Ac

hnan

thes

lanceolata

Achn

anth

es mi

nuti

ssim

a Am

phor

a perpusilla

Amph

ora

vene

ta

Amph

ora

sp.

Aste

rion

ella

fo

rmos

a --

--

11

Cocconeis

plac

entu

la

Cyli

ndroth

eca

gracilis

Cyli

ndro

thec

a sp.

Cyma

topl

eura

so

lea

Apri

l 24,

1985

35.4

24.4

24.4

11.3 1.3

840

16.5

0.0

560

66.7

0.0

8416.5

5666.7

00

Cymbella affinis

Cymbella mi

nuta

Cymbella mi

nuta

f.

la

tens

Cymbella mi

nuta

va

r. silesica

Cymbella si

nuat

aDiatoma

anceps

Diatoma

hiem

ale

var.

mesodon

Diatoma

tenu

e va

r. elongation

Diat

oma

vulg

are

Dipl

onei

s sp

.Ep

ithe

mia

sore

xEu

noti

a sp.

Frag

ilaria

ca

puci

naFragilaria cr

oton

ensi

sFragilaria pi

nnat

aFragilaria va

uche

riae

Gomphonema an

gust

atum

Gyro

sigma

spencerii

Hann

aea

arcu

sHa

nnae

a arcus

var. amphioxys

Hann

aea

arcus

var.

arcus

Hantzschia am

phio

xys

Meridion circulare

Navi

cula

arvensis

Navicula capitata

Navi

cula cryptocephala

Navi

cula

cr

ypto

ceph

ala

var.

ve

neta

Navi

cula gastrum

Navi

cula

he

ufie

riNa

vicu

la lanceolata

Navi

cula

luzonensis

Navi

cula

me

nisc

ulus

va

r. up

sali

ensi

sNa

vicu

la minima

Navi

cula

mi

nusc

ula

Navi

cula mu

tica

Navi

cula

no

tha

Navi

cula

pe

llic

osa

Navi

cula

pup

ula

Navi

cula

radios a

Navi

cula ra

dios

a va

r. te

nell

a

285.

528

33.3

0.6

285.5

14

16.7 8.3

Tabl

e 15. Ta

xa,

numbers, an

d percent

composition

of phytoplankton at

si

tes

1 an

d 2

in Kenney

Reservoir, wa

ter

year

s 19

85-8

7 Continued

PHYLUM

ORDER

Genus

species

Kenn

ey Reservoir (s

ite

1)Kenney Reservoir

(sit

e 2)

2-ft

depth

Comp

osit

e (0

-10

ft)

2-ft

depth

Composite

(0-1

0 ft

)Cells

% Co

mp

Cells

% Co

mp

Cells

% Comp

Cells

% Comp

oo

oo

BACILLARIOPH

YTA

(DIA

TOMS

)--C

onti

nued

PENNALES--

Continued

ffav

icul

a rh

ynco

ceph

ala

Navi

cula

sabinians

var.

in

termedia

Navi

cula

ta

ntul

a Na

vicu

la tr

ipun

ctat

a Na

vicu

la v

irid

ula

Navi

cula

vi

ridu

la v

ar.

avea

me

Navi

cula

viridula

var.

av

enac

ea

Navi

cula

sp.

Nitz

schi

a ac

icul

aris

Ni

tzsc

hia

comm

unis

Ni

tzsc

hia

diss

ipat

a Ni

tzsc

hia

filiformis

Nitz

schi

a fr

ustu

lum

Nitz

schi

a hantzschiana

Nitz

schi

a hungarica

Nitz

schi

a ig

nora

ta

Nitz

schi

a in

term

edia

Ni

tzsc

hia

Iatens

Nitz

schi

a linearis

Nitz

schi

a longissima v

ar.

reve

rsa

Nitz

schi

a mi

croc

epha

la

Nitz

schi

a palea

Nitz

schi

a pa

leac

ea

Nitz

schi

a pu

s ilia

Nitz

schi

a romana

Nitz

schi

a thermal is

Ni

tzsc

hia

tryb

lion

ella

var

. de

bili

s Ni

tzsc

hia

sp.

April

24,

1985

--Co

ntin

ued

28 141.4

0.7

140.7

28 28

1.4

1.4

11 11 11 11 11 11 11

1.3

1.3

1.3

1.3

1.3

1.3

1.3

285.

58.

3

00 VO

Pleu

rosi

gma

delicatalum

Rhoicosphenia

curvata

Rhopalodia

musculus

Suri

rell

a angustata

Suri

rell

a ov

alis

Suri

rell

a ov

ata

Syne

dra

acus

Syne

dra

delicatissima

Syne

dra

fasc

icul

ate

Syne

dra

minu

scul

aSn

yedr

a ra

dien

sSy

nedr

a ru

mpen

sSy

nedr

a ru

mpen

s va

r. familiaris

Synedra

ulna

Syne

dra

ulna va

r. contracta

Syne

dra

ulna va

r. da

nica

Syne

dra

ulna va

r. ox

yrhy

nchu

sSy

nedr

a sp.

Thalassiosira

fluv

iati

lis

CHLO

ROPH

YTA

(GREEN A

LGAE)

Acti

nast

rum hantzschii

Acti

nast

rum

sp.

Anfc

istr

odes

mus

convolutus

Ankistrode

smus co

nvol

utus

v.

acicular

isAnkistrode

smus fa

lcat

us

Ankistrode

smus falcatus va

r.acicular

isAnkistrode

smus fa

lcat

us va

r. mi

rabi

lis

Cart

eria

sp

. Chlamydomonas

sp.

Chlo

rell

a sp.

Chlorococcum h

umic

ola

Chlorococcum sp

. Chlorogoni

um s

pira

le

Chlorogonium sp.

Chodatella qu

adri

seta

Closterium sp.

Cocc

omyx

a minor

Crucigenia quadrata

140.7

110

13.4

0.0

0.0

Tabl

e 15. Taxa,

numb

ers,

an

d percent

composition

of phy

topl

ankt

on at

si

tes

1 an

d 2

in Kenney

Reservoir, water

years

1985-87 Continued

PHYLUM

ORDER

Genu

s sp

ecie

s

Kenn

ey Res

ervo

ir (s

ite

1)Kenney Reservoir (s

ite

2)2-

ft

depth

Comp

osit

e (0

-10

ft)

2-ft

depth

Composite

(0-1

0 ft

)Ce

lls

% Co

mp

Cells

% Comp

Cells

% Comp

Cells

% Comp

vo o

CHLOROPHYTA

(GRE

EN A

LGAE)--Continued

Dict

yosp

haer

ivm

ehre

nber

gian

vm

Dict

yosp

haer

ivm pu

lche

llum

Dictyospha

eriv

m sp.

Gloe

ocys

tis

sp.

Gole

nkinia

ra

diat

a Golenkiniopsis solitaria

Goni

um sp.

Kirc

hner

iell

a contorta

Meso

taen

ium

sp.

Micr

atin

ium pu

s ilium

Micratinium

sp.

Moug

eoti

a sp.

Oocy

tis

sp.

Pand

orin

a morum

Phacotus lenticularis

Phacotus sp.

Plat

ymon

as sp.

Pteromonas sp.

Scen

edes

mus

arma

tus

Scen

edes

mus

bijuga

Scen

edes

mus

dimo

rphu

s Sc

ened

esmu

s quadricauda

Scen

edes

mus

serratus

Scen

edesmu

s sp

. Schroederia

judayi

Schroederia

setigera

Selenastrum minutum

Spha

eroc

ysti

s schroeteri

Staurastrum

sp.

Treu

Jbar

ia sp.

April

24,

1985

--Co

ntin

ued

140.7

110

13.4

CHRY

SOPH

YTA

(GOLDEN-BROWN

ALGA

E)

240

12.2

11

1.3

0 0.0

0 0.0

Dinobryon

divergens

Kephyrion

spir

ale

Keph

yrio

n sp.

230

11.7

11

1.3

Mallomonas ac

aroi

des

Mallomonas ak

roko

nos

Mallomonas gl

obos

aMallomonas sp.

14

0.7

Pleu

rosi

gma

delicatulum

Pleu

rosi

gma

sp.

Ochr

omon

as sp.

CYAN

OPHY

TA (BLUE-GREEN

ALGA

E)

610

31.0

300

36.6

430

84.3

28

33.3

AnaJ

baen

a sp

.Aphanocapsa

delicatissima

Aphanocapsa

sp.

Aphanoth

ece

sp.

Chroococ

cus

dispersus

Chro

ococ

cus

limn

etic

us

Chro

ococ

cus

sp.

Dactylococcopsis fascicularis

43

2.2

Dact

yloc

occo

psis

sp.

Lyng

bya

limnetica

Lyng

bya

nana

170

8.6

--

--

200

39.2

28

33

.3Marssoniella elegans

Oscillatoria an

gust

a Oscillatoria an

gust

issi

ma

--

--

--

230

45.1

Osci

llat

oria

li

mnet

ica

Osci

llat

oria

te

nuis

Oscillatoria sp

. 400

20.3

300

36.6

Phormidium sp.

Syne

choc

occu

s li

near

eSy

nech

ococ

cus

sigmoidea

Syne

choc

occu

s sigmoidea

f. mino

rSy

nech

ococ

cus

sp.

CRYPTOPHYTA

(CRYPTOMONADS)

240

12.2

110

13.4

0

0.0

0 0.0

Chroomon

as sp.

14

0.7

Cryp

tomo

nas

erosa

Cryp

tomo

nas

mars

onii

Cr

ypto

mona

s ov

ata

Tabl

e 15. Ta

xa,

numb

ers,

and percent

comp

osit

ion

of p

hyto

plan

feto

n at

si

tes

1 and

2 in Kenney Reservoir, water y

ears

19

85-8

7--Continued

PHYLUM

ORDER

Genus

spec

ies

Kenn

ey Reservoir (s

ite

1)Ke

nney

Reservoir (s

ite

2)2-ft

depth

Comp

osit

e (0

-10

ft)

2-ft

depth

Comp

osit

e (0

-10

ft)

Cell

s % Co

mp

Cell

s % Co

mp

Cell

s % Comp

Cell

s % Comp

vo

ho

CRYP

TOPH

YTA

(CRYPTOMONADS) Continued

Cryptomonas

rostrata

Cryp

tomo

nas

rostratiformis

Cryptomonas

sp.

Rhodomonas mi

nuta

EUGLENOPHYTA (E

UGLE

NOID

S)

Eugl

ena

acus

Eu

glen

a viridis

Euglena

sp.

Trachelomonas

sp.

PYRRHOPHYTA

(DIN

OFLA

GELL

ATES

) Ceratium hir

undi

nell

a Gymnodinium

sp.

Peri

dini

um biceps

Peridini

um in

cons

picu

a Pe

ridi

nium sp.

Total

cell

s and

percent

composition

14 14

0.7

0.7

0.0

1,97

0 10

0

April

24,

1985

--Co

ntin

ued

230

11.7

110

13.4 0.0

0.0

0.0

0.0

820

100

510

101

0.0

0.0

84

100

Number of

spec

ies

Diversity

inde

x (DI) at sp

ecie

s level

Biomass

(mg/

L dry

weig

ht)

Chlorophyll

a (Mg/L)

Chlo

roph

yll b (M

g/L)

Chlorophyll

c (Mg/L)

173.

2514

2.60

51.74

52.08

June

4,

19

85

BACI

LLAR

IOPH

YTA

(DIA

TOMS

) 73

0 57.5

480

94.1

270

90.0

370

100.0

CENTRALES

590

46.5

210

41.2

57

19.0

57

15.4

Cycl

otel

la bo

dani

ca

Cycl

otel

la kutzingiana

Cyclotella me

negh

inia

na

14

1.1

14

2.7

Cyclotella ps

eudo

stel

lige

raCyclotella stelligera

330

26.0

200

39.2

57

19.0

57

15.4

Me

losi

ra granulata

var.

an

gust

issi

ma

Melo

sira

it

alic

a 230

18.1

Me

losi

ra lirata

Melo

sira

sp.


Step

hano

disc

us alpinus

14

1.1

Step

hano

disc

us as

trea

St

epha

nodi

scus

ni

agar

ae

Step

hano

disc

us te

nuis

Stephanodiscus sp.

5

PENNALES

140

11.0

267

52.4

210

70.0

310

83.8

Achnanthes affinis

Achnanthes la

nceo

lata

Achnanthes minutissima

--

--

28

5.5

28

9.3

28

7.6

Amphora

perpusilla

Amph

ora

veneta

Amphora

sp.

Aste

rion

ella

formosa

--

--

14

2.7

Cocconeis

placentula

Cyli

ndro

thec

a gracilis

Cyli

ndro

thec

a sp.

Cyma

topl

eura

so

lea

Cymb

ella

affinis

--

--

--

85

28.3

Cy

mbel

la mi

nuta

Cy

mbel

la m

inut

a f. latens

Cymb

ella

mi

nuta

va

r. si

lesi

ca

Cymb

ella

si

nuat

a Di

atom

a an

ceps

Diatoma

hiem

ale

var.

me

sodo

n Diatoma

tenue

var.

el

onga

tum

Tabl

e 15. Tax

a, numbers, and pe

rcen

t co

mpos

itio

n of phytoplankton at

sites

1 an

d 2

in Ken

ney

Reservoir, wa

ter

year

s 1 9

85-87- -Continued

PHYLUM

Genu

s species

Kenn

ey Res

ervo

ir (site

1)2-ft

Comp

osit

e de

pth

(0-10

ft)

Cell

s %

Comp

Cells

% C

omp

Kenney Res

ervo

ir (s

ite

2)2-ft

Comp

osit

e de

pth

(0-1

0 ft)

Cell

s %

Comp

Cells

% C

omp

BACILLARIOPHYTA

(DIA

TOMS

) -Continued

PENNALES- -C

ontinued

Diat

oma

vulgare

Dipl

onei

s sp.

Epit

hemi

a sorex

Euno

tia

sp.

Fragilar

ia ca

puci

na

Fragilar

ia cr

oton

ensi

s Fragilar

ia pi

nnat

a Fragilaria vaucheriae

Gomphonema angustatum

Gyro

sigm

a spencerii

Hannaea

arcu

sHannaea

arcu

s va

r. amphioxys

Hannaea

arcus

var.

ar

cus

Hantzschia amphioxys

Meridion circulare

Navi

cula

ar

vens

is

Navi

cula

capitata

Navi

cula

cr

ypto

ceph

ala

Navi

cula

cr

ypto

ceph

ala

var.

ve

neta

Na

vicu

la ga

stru

m Na

vicu

la heufleri

Navi

cula

lanceolata

Navi

cula

luzonensis

Navi

cula

men

iscu

lus

var.

up

saliensis

Navi

cula

minima

Navi

cula

min

uscu

la

Navi

cula

mu

tica

Na

vicu

la n

otha

June

4

> 19

85 -Continued

287.

6

141.

128

5.5

Navi

cula

pe

llic

osa

Navi

cula

pup

ula

Navi

cula

ra

dios

aNa

vicu

la ra

dios

a va

r. te

nell

aNavicula rhyncocephala

Navi

cula

sabinians

var. intermedia

Navi

cula

tantula

Navicula tr

ipun

ctat

aNa

vicu

la vi

ridu

laNa

vicu

la vi

ridu

la v

ar.

avea

me

--

--

14

2.7

Navi

cula

vi

ridu

la va

r. avenacea

Navi

cula

sp.

Nitz

schi

a acicularis

Nitz

schi

a comnunis

--

14

2.7

28

7.6

Nitz

schi

a di

ssip

ata

28

2.2

--

--

28

9.3

28

7.6

Nitz

schi

a filiformis

Nitz

schi

a fr

ustu

lum

28

5.5

32

10.7

14

3.8

Nitz

schi

a ha

ntzs

chia

naNi

tzsc

hia

hung

aric

aNi

tzsc

hia

igno

rata

--

14

2.7

Nitz

schi

a intermedia

28

2.2

14

2.7

--

28

7.6

Nitz

schi

a la

tens

14

1.

1 14

2.7

Nitz

schi

a linearis

Nitz

schi

a longissima va

r. re

vers

aNi

tzsc

hia

microcephala

Nitz

schi

a palea

--

57

11.2

28

9.3

28

7.6

Nitz

schi

a pa

leac

eaNi

tzsc

hia pu

sill

aNi

tzsc

hia

romana

28

2.2

28

5.5

7 2.

3 14

3.8

Nitz

schi

a thermalis

Nitz

schi

a tr

ybli

onel

la va

r. de

bili

sNi

tzsc

hia

sp.

--

28

7.6

PIeurosigma

delicatalum

Rhoicosphenia

curvata

Rhopalodia

mus

culu

s

--

--

--

28

7.6

Suri

rell

a angustata

14

1.1

Suri

rell

a ov

alis

Suri

rell

a ov

ata

14

1.1

Synedra

acus

Synedra

delicatissima

Tabl

e 15. Ta

xa,

numb

ers,

and percent

comp

osit

ion

of p

hytoplanfcton

at si

tes

1 and

2 in

Ke

nney

Res

ervo

ir,

water years

1985

-87-

-Continued

PHYLUM

ORDER

Genus

spec

ies

Kenn

ey Reservoir (s

ite

1)

Composite

Cells

2-ft

depth% Co

mp(0

-10

ft)

Cell

s % Co

mp

Kenn

ey Reservoir (s

ite

2)

2-ft

Composite

____depth

Cell

s % Comp

(0-1

0 ft

) Ce

lls

% Comp

10

BACILLARIOPHYTA

(DIATOMS) Continue

d PE

NNAL

ES--

Continued

Syne

dra

fasciculate

Syne

dra

minuscula

Snye

dra

radiens

Syne

dra

rump

ens

Syne

dra

rump

ens

var.

fa

mili

aris

Syne

dra

ulna

Syne

dra

ulna

var

. contracta

Syne

dra

ulna v

ar.

dani

ca

Synedra

ulna

var

. ox

yrhy

nchu

s Sy

nedr

a sp.

Thal

assi

osir

a fluviatilis

CHLOROPHYTA

(GREEN A

LGAE)

Actinastru

m ha

ntzs

chii

Actinastru

m sp.

AnAr

istr

odesmus

convolutus

AnAr

istr

odes

mus

conv

olut

us v.

acicularis

AnAr

istr

odes

mus

falcatus

Anfe

istr

odes

mus

falc

atus

var

.acicularis

Anfe

istr

odes

mus

falcatus v

ar.

mira

Jbil

is

Cart

eria

sp.

Chla

mydo

mona

s sp.

Chlo

rell

a sp.

Chlorococcum hum

icol

a Chlorococcum s

p.

Chlorogoni

um s

pirale

June

4, 1985 Continued

120

9.4

14 11

2.7

2.2

0.0

57

15.4

0.0

IO

Chlorogonium sp.

Chodatella qu

adri

seta

Closterium sp.

Cocc

omyx

a minor

Cruc

igen

ia quadrata

Dict

yosp

haer

ium

ehrenbergianum

Dict

yosp

haer

ium pu

lche

llum

Di

ctyo

spha

eriu

m sp.

Gloeocys

tis

sp.

Gole

nkin

ia radiata

Golenkiniopsis so

lita

ria

Gonium sp.

Kirc

hner

iell

a contorta

Nesotaenium

sp.

Nicratinium

pus ilium

Nicratinium

sp.

Noug

eoti

a sp.

Oocy

tis

sp.

Pand

orin

a mo

rum

Phac

otus

le

ntic

ular

is

Phacotus sp.

Platymon

as sp.

Pteromonas sp.

Scen

edes

mus

arma

tus

Scen

edes

mus

biju

ga

Scenedesmus

dimorphus

Scen

edes

mus

quadricauda

Scen

edes

mus

serratus

Scen

edes

mus

sp.

Schroederia

judayi

Schroederia

setigera

Selenastrum minutum

Spha

eroc

ysti

s sc

hroe

teri

Staurastrum

sp.

TreuJbaria sp.

110

8.7

0.8

141.1

1.4

Tabl

e 15

.--T

a.xa

, numbers, and pe

rcen

t co

mpos

itio


si

tes

1 and

2 in

Kenney

Reservoir, water

year

s 19

85-8

7 Continued

PHYLUM

ORDE

RGe

nus

species

Kenney Res

ervo

ir (site

1)Kenney Res

ervo

ir (s

ite

2)2-

ft

depth

Composite

(0-10

ft)

2-ft

de

pth

Composite

(0-1

0 ft

)Ce

lls

% Comp

Cells

% Co

mp

Cells

% C

omp

Cell

s %

Comp

oo

CHRYSOPHYTA

(GOLDEN-BROWN

ALGA

E)

Dinofcryon

divergens

Keph

yrio

n sp

iral

e Ke

phyr

ion

sp.

Nallomonas acaroides


Mall

omon

as globosa

Mallomonas sp.

Pleurosigma

de.Zicatu.Zmn

Pleurosi

gma

sp.

Ochromon

as sp.

CYANOPHYTA (BLUE-GREEN

ALGAE)

Anafcaena

sp.

Aphanocapsa

deli

cati

ssim

a Aphanocapsa

sp.

Aphanothece

sp.

Chroococ

cus

dispersus

Chro

ococ

cus

liin

neti

cus

Chro

ococ

cus

sp.

Dact

yJoc

occo

psis

fa

scic

ular

is

Dact

yloc

occo

psis

sp.

Lyng

jbya

li

inne

tica

Ly

ngby

a nana

Marssoniel-Za

eleg

ans

Osci

llat

oria

an

gust

a Os

cill

ator

ia angustissima

Osci

llat

oria

limnetica

Osci

llat

oria

te

nuis

Os

cill

ator

ia sp.

141.

1

141.1

110

8.7

110

8.7

June

4, 1985--Continued

0 0.0

28

9.3

0.0

289.

3

0.0

0.0

0.0

Phor

midi

um sp

. Sy

nech

ococ

cus

line

are

Syne

choc

occu

s sigmoidea

Syne

choc

occu

s sigmoidea

f. mino

r Sy

nech

ococ

cus

sp.

CRYPTOPHYTA

(CRY

PTOM

ONAD

S)

300

23.6

14

2.7

0 0.

0 0

0.0

Chroomonas

sp.

140

11.0

Cr

ypto

mona

s er

osa

Cryp

tomo

nas

mars

onii

Cr

ypto

mona

s ovata

Cryp

tomo

nas

rostrata

Cryp

tomo

nas

rost

rati

form

isCr

ypto

mona

s sp.

160

12.6

14

2.7

Rhodomonas mi

nuta

EUGL

ENOP

HYTA

(E

UGLE

NOID

S)

0 0.0

0 0.

0 0

0.0

0 0.

0 Euglena

acus

Euglena

viri

dis

Euglena

sp.

Trac

helo

mona

s sp.

PYRRHOPHYTA

(DIN

OFLA

GELL

ATES

) 0

0.0

0 0.

0 0

0.0

0 0.

0 Ceratium hirundinella

Gymn

odin

ium

sp.

Peridinium bic

eps

Peri

dini

um in

cons

picu

a Pe

ridi

nium sp.

Tota

l ce

lls

and

percent

comp

osit

ion

Numb

er of

sp

ecies

Dive

rsit

y in

dex

(DI) at

species

level

Biom

ass

(mg/

L dr

y weight)

Chlorophyll

a (fJg/L)

Chlo

roph

yll

b (M

8/L)

Chlo

roph

yll

c (p

g/L)

1,27

0 100

173.23 3.1

7.9

4.2

12.3

510

99

173.

24 2.6

8.6

1.7

7.7

300

99

82.

75 1.9 __ __

__

370 12

3.47 1.9 --

100 __ __ __ -- _

o

o

Tabl

e 15. Taxa,

numbers, an

d percent

composition

of phytoplankt

on at

si

tes

1 an

d 2

in K

enney

Rese

rvoi

r, water

years

1985

-87-

-Con

tinued

PHYLUM

rVDTYPP

Genu

s species

BACILLARIOPHYTA (DIATOMS)

CENTRALES

Cycl

otel

la bodanica

Cycl

otel

la k

utzi

ngia

naCy

clot

ella

meneghiniana

Cycl

otel

la p

seudostelligera

Cycl

otel

la st

elli

gera

Kenney Reservoir (s

ite

1)2-ft

depth

Cell

s

410

220 -- -- 140 __ 57

% Co

mp

23.8

12.8 -- __ 8.1

__ 3.3

Composite

(0-1

0 ft

)Cells

1,92

01,

200

-- -- 510

-- 630

% Co

mp

June

52.2

32.6

-- __ 13.9 -- 17.1

Kenney Reservoir (s

ite

2)2-ft

depth

Cells

27,

1985

600

240 -- -- 170 -- 74

% Co

mp

54.5

21.8 -- -- 15.5 -- 6.7

Composite

(0-1

0 ft

)Cells

370

110 -- -- 57 -- 28

% Co

mp

100.

029

.7 -- -- 15.4 -- 7.6

Melo

sira

gr

anul

ata

var.

Me

losi

ra it

alic

a Me

losi

ra li

rata

Me

losi

ra sp.

Rhiz

osol

enia

er

iens

is

Step

hano

disc

us al

pinu

s St

epha

nodi

scus

as

trea

St

epha

nodi

scus

nia

gara

e St

epha

nodi

scus

tenuis

Step

hano

disc

us sp.

PENNALES

Achn

anth

es af

fini

s Ac

hnan

thes

lanceolata

Achn

anth

es mi

nuti

ssim

a Am

phor

a perpusilla

Amph

ora

vene

ta

Amph

ora

sp.

Aste

rion

ella

fo

rmos

a Cocconei

s pl

acen

tula

Cy

lind

roth

eca

gracilis

Cyli

ndro

thec

a sp.

Cyma

topl

eura

so

lea

angu

stissima

28 190

1.6

11.0

57 720

1.5

19.6

360

32.7

28

260 28

7.6

70.3 7.6

Cymb

ella

affinis

Cymb

ella

minuta

Cymb

ella

min

uta

f. la

tens

Cymb

ella

minuta

var.

si

lesi

caCymbella sinuata

Diat

oma

ance

psDi

atom

a hiemale

var.

me

sodo

nDi

atom

a te

nue

var.

elongation

Diatoma

vulg

are

Diploneis

sp.

Epit

hemi

a sorex

Eunotia

sp.

--

--

28

2.5

Fragilaria capucina

Fragilaria cr

oton

ensi

sFragilaria pinnata

--

--

--

28

7.6

Fragilaria vaucheriae

Gomp

hone

ma angustatum

Gyrosigma

spencerii

Hannaea

arcus

Hannaea

arcus

var.

amphioxys

Hannaea

arcus

var.

arcus

Hantzschia

amphioxys

Meridion circulare

--

--

--

--

57

15.4

ffav

icul

a ar

vens

is

7 0.4

14

0.4

28

2.5

14

3.8

Navi

cula

capitata

Navi

cula

cr

ypto

ceph

ala

Navi

cula

cr

ypto

ceph

ala

var.

ve

neta

--

--

45

1.2

--

--

57

15.4

Navi

cula

gastrum

Navi

cula

heu

fler

iNa

vicu

la la

nceo

lata

Navi

cula

luzonensis

1 0.

4 28

0.8

14

1.3

7 1.9

Wavi

cula

menisculus

var.

up

sali

ensi

sNa

vicu

la m

inima

57

3.3

140

3.8

7 0.

6 14

3.8

Navi

cula

min

uscu

laNa

vicu

la m

utica

--

--

--

--

--7

Navi

cula

no

tha

Navi

cula

pel

lico

saNa

vicu

la pupula

Navi

cula

ra

dios

aNa

vicu

la ra

dios

a va

r. te

nell

a

Tabl

e 15. Taxa,

numbers/ an

d pe

rcen

t composition

of phy

topl

ankt

on at

si

tes

1 an

d 2

in Ken

ney

Reservoir, wa

ter

years

1985-87 Continued

PHYLUM

ORDER

Genu

s sp

ecie

s

Kenney Reservoir

(sit

e 1)

2-ft

depth

Cell

s % Comp

Comp

osit

e (0

-10

ft)

Cells

% Comp

Kenn

ey Reservoir (s

ite

2)2-ft

depth

Cell

s % C

omp

Comp

osit

e (0

-10

ft)

Cells

% Comp

BACILLARIOPHYTA

(DIA

TOMS

) Co

ntin

ued

PENNALES--Continued

Navicula rhyncocephala

Navi

cula

sabinians

var.

in

term

edia

Navi

cula

tantula

Navi

cula

tr

ipun

ctat

a Na

vicu

la vi

ridu

la

Navi

cula

vi

ridu

la v

ar.

avea

me

Navi

cula

vi

ridu

la v

ar.

avenacea

Navi

cula

sp.

Nitz

schi

a ac

icul

aris

Ni

tzsc

hia

comm

unis

Ni

tzsc

hia

diss

ipat

a Ni

tzsc

hia

filiformis

Nitz

schi

a fr

ustu

lum

Nitz

schi

a hantzschiana

Nitz

schi

a hu

ngar

ica

Nitz

schi

a ig

nora

ta

Nitz

schi

a intermedia

Nitz

schi

a latens

Nitz

schi

a linearis

Nitz

schi

a lo

ngis

sima

var.

reve

rsa

Nitz

schi

a microcephala

Nitz

schi

a pa

lea

Nitz

schi

a paleacea

Nitz

schi

a pu

s il

ia

Nitz

schi

a romana

Nitz

schi

a th

erma

l is

Ni

tzsc

hia

tryb

lion

ella

var

. de

bili

s Ni

tzsc

hia

sp.

0.4

28 28

1.6

1.6

June 27,

1985--Continued

0.2

28 85 57 14 85 170 7 7

0.8

2.3

1.5

0.4

2.3

4.6

0.2

0.2

57 100 28 28 42

5.2

9.1

2.5

2.5

3.8

57

15.4

Pleurosigma

delicatalum

Rhoi

cosp

heni

a curvata

Rhopalodia musculus

Suri

rell

a angustata

Surirella

oval is

Surirella

ovata

Syne

dra

acus

Syne

dra

delicatissima

Syne

dra

fasc

icul

ate

Syne

dra

minu

scul

aSn

yedr

a radiens

Syne

dra

rump

ens

Syne

dra

rump

ens

var.

familiaris

Syne

dra

ulna

Syne

dra

ulna v

ar.

cont

ract

aSy

nedr

a ulna v

ar.

dani

caSy

nedr

a ulna var. ox

yrhy

nchu

sSy

nedr

a sp.

Thalassiosira

fluviatilis

CHLO

ROPH

YTA

(GRE

EN A

LGAE)

Actinastrum ha

ntzs

chii

Actinastrum

sp.


Ankistro

desmus co

nvol

utus

v.

acicular

isAnkistro

desmus falcatus


r.acicularis

Ankistrodesmus fa

lcat

us va

r. mi

rabi

lis

Cart

eria

sp.

Chlamydomonas

sp.

Chlo

rell

a sp

. Ch

loro

cocc

um h

umic

ola

Chlorococcum sp.

Chlorogonium s

pira

le

Chlo

rogo

nium

sp.

Chodatella quadriseta

Closterium sp.

Cocc

omyx

a minor

Crucigenia qu

adra

ta

282.

5

573.3

280.8

170

9.9

170

4.6

0.0

0.0

280.

8

Tabl

e 15. Ta

xa,

numbers, an

d percent

composition

of phy

topl

ankton at

si

tes

1 an

d 2

in Kenney

Reservoir, wa

ter

year

s 19

85-8

7 Continued

PHYLUM

ORDER

Genu

s sp

ecie

s

Kenney Re

serv

oir

(sit

e 1)

Kenn

ey Reservoir

(sit

e 2)

2-ft

depth

Comp

osit

e (0

-10

ft)

2-ft

depth

Composite

(0-1

0 ft)

Cells

% Co

mp

Cell

s % Co

mp

Cells

% Comp

Cell

s % Comp

CHLO

ROPH

YTA

(GREEN A

LGAE

)--C

onti

nued

Di

ctyo

spha

eriu

m ehrenbergianum

Dictyosp

haer

ium pulchellum

Dict

yosp

haer

ium

sp.

Gloe

ocys

tis

sp.

Golenkinia ra

diat

a Go

lenk

inio

psis

so

lita

ria

Goni

um sp.

Kirc

hner

iell

a contorta

Mesotaenium

sp.

Micratinium pusillum

Micratinium

sp.

Moug

eoti

a sp.

Oocy

tis

sp.

Pandorina morum

Phacotus le

ntic

ular

is

Phacotus sp.

Platymon

as sp

. Pteromonas sp.

Scen

edes

mus

armatus

Scen

edes

mus

bijuga

Scen

edes

mus

dimorphus

Scen

edes

mus

quadricauda

Scen

edes

mus

serratus

Scen

edes

mus

sp.

Schroederia

judayi

Schr

oede

ria

setigera

Selenastrum minutum

Sphaerocystis

schroeteri

Staurastrum

sp.

Treu

bari

a sp.

85 854.

9 4.9

June

27,

1985--Continued

140

3.8

CHRY

SOPH

YTA

(GOLDEN-BROWN

ALGAE)

0 0.0

0 0.0

0 0.

0 0

0.0

Dino

bryo

n divergens

Keph

yrio

n spirale

Keph

yrio

n sp.

Mallomon

as ac

aroi

des


Mallomonas gl

obos

a Mallomonas sp.

Pleurosigma

delicatulum

Pleurosigma

sp.

Ochr

omon

as sp.


ALGA

E)

1,05

0 61

.0

1,56

0 42.4

420

38.2

0

0.0

Anab

aena

sp

. Aphanocapsa

delicatissima

--

--

230

6.3

Aphanocapsa

sp.

Aphanothece

sp.

Chro

ococ

cus

disp

ersu

sCh

rooc

occu

s limneticus

Chro

ococ

cus

sp.

28

1.6

28

0.8

--

--Dactyloc

occopsis fascicularis

28

1.6

85

2.3

Dactyloc

occopsis sp.

--

28

0.8

Lyng

bya

limnetica

Lyngbya

nana

--

310

28.2

Mars

soni

ella

elegans

Osci

llat

oria

angusta

Osci

llat

oria

an

gust

issi

maOs

cill

ator

ia limnetica

Osci

llat

oria

tenuis

Oscillat

oria

sp

. --

--

--

--

110

10.0

Phormidiim sp.

Synechococcus

lineare

110

6.4

280

7.6

Synechococcus

sigmoidea

Syne

choc

occu

s sigmoidea

f. mi

nor

--

--

--

--'

Syne

choc

occu

s sp

. 88

0 51

.2

910

24.7

CRYPTOPHYTA

(CRY

PTOM

ONAD

S)

85

4.9

28

0.8

85

7.7

0 0.

0 Chroomonas sp

.Cr

ypto

mona

s er

osa

28

1.6

28

0.8

Cryp

tomo

nas

mars

onii

Cr

ypto

mona

s ov

ata

Tabl

e 15. Ta

xa,

numbers, an

d percent

composition

of phy

topl

ankt

on at

si

tes

1 an

d 2

in K

enne

y Reservoir, wa

ter

year

s 1985-87 Continued

PHYLUM

ORDER

Genu

s species

Kenn

ey Res

ervo

ir (s

ite

1)2-ft

Comp

osit

e depth

(0-1

0 ft

)

Kenn

ey Reservoir (s

ite

2)2-ft

Composite

depth

(0-1

0 ft)

Cells

% Co

mp

Cell

s % Co

mp

Cell

s % Co

mp

Cells

% Co

mp

CRYP

TOPH

YTA

(CRY

PTOM

ONAD

S)--

Cont

inue

d Cryptomonas

rost

rata

Cri/ptomonas rostratiformis

Crgp

tomo

nas

sp.

Rhod

omon

as mi

nuta

EUGLENOPHYTA

(E

UGLE

NOID

S)

Euglena

acus

Euglena

viridis

Eugl

ena

sp.

Trac

helo

mona

s sp

.

PYRRHOPHYTA

(DINOFLAGELLATES)

Cera

tium

hir

undi

nell

a Gy

mnod

iniu

m sp.

Peri

dini

um bic

eps

Peridinium in

cons

picu

a Pe

ridi

nium sp.

Total

cell

s and pe

rcen

t composition

Number of

species

Diversity

inde

x (DI) at sp

ecie

s le

vel

Biom

ass

(mg/

L dr

y we

ight

)

Chlo

roph

yll

a (pg/L)

Chlo

roph

yll

b (pg/L)

Chlorophyll

c (pg/L)

June 27,

1985 Continued

573.3

0.0

0.0

85

0.0

7.7

0.0

0.0

0.0

0.0

0.0

1,72

0 182.81 1.2

0.20

0.06

0.23

100

3,68

0 10

0

263.

56 3.0

__

__

__

1,10

0 100

153.31 1.9 __

__

370 11

3.23 1.6 __

100 -- -- __

July

19,

1985

BACI

LLAR

IOPH

YTA

(DIATOMS)

CENTRALES

Cycl

otel

la bodanica

Cyclotella ku

tzin

gian

aCyclotella me

negh

inia

naCy

clot

ella

pseudostelligera

Cycl

otel

la st

elli

gera

Melosira gr

anul

ata

var. an

gust

issi

maMelosira italica

Melosira li

rata

Melosira sp

.Rh

izos

olen

ia eriensis

Step

hano

disc

us alpinus

Step

hano

disc

us as

trea

Stephanodiscus niagarae

Step

hano

disc

us te

nuis

Stephanodiscus sp

.

PENN

ALES

Ach

nant

/ies

a

ffin

isAchnanthes la

nceo

lata

Achn

anth

es mi

nuti

ssim

aAm

phor

a pe

rpus

illa

Amphora

veneta

Amphora

sp.

Asterionel

la formosa

Cocc

onei

s placentula

Cylindroth

eca

gracilis

Cylindroth

eca

sp.

Cymatopl

eura

so

lea

Cymbella affinis

Cymbella mi

nuta

Cymbella mi

nuta

f.

la

tens

Cymb

ella

mi

nuta

var. si

lesi

caCy

mbel

la si

nuat

aDiatoma

ance

psDiatoma

hiemale

var. mesodon

3 1,800

,700 59

880

430

110

27

12 0 6 3 0

.1

.1 .4

.3 .1 .8

4,100

3,000

1,80

0

260

400

41.

30.

18. 2. 4.

0 0 0 6 0

5,10

0 200

140 28

28 __

68 2 1 0 0 _

.0

.7 .9 .4

.4 _

7,100

310

310

__

80.7

3.5

3.5

-- __

180

1.3

560

5.6

2,10

0 15

.0

1,10

0 11.0

4,90

0 65

.3

6,80

0 77.3

280.4

600

8.0

710

0.1

8.1

Table

15.-

-Ta.

xa,

numbers, and percent

comp

osit

ion

of phytoplankton at

si

tes

1 and

2 in

Kenney

Reservoir, wa

ter

year

s 19

85-8

7 Continued

PHYLUM

ORDER

Genus

spec

ies

Kenn

ey Re

serv

oir

(sit

e 1)

2-ft

depth

Cells

% Co

mp

Comp

osit

e (0

-10

ft)

Cells

% Co

mp

Kenney Reservoir

(sit

e 2)

2-ft

depth

Cells

% Co

mp

Comp

osit

e (0

-10

ft)

Cells

% Comp

BA

CIL

LAR

IOPH

YTA

(D

IAT

OM

S)-

Con

tinu

ed

July

19

IM

S-C

onti

nued

FE

MA

LE

S--

Con

tinu

edDiatoma

tenue

var.

el

onga

tum

Diatoma

vulg

are

--

--

--

--

28

0.4

28

0.3

Dipl

onei

s sp

.E

pit

hez

nia

so

rex

Eunoti

a sp

.Fragilaria ca

puci

naFragilaria cr

oton

ensi

sFr

agil

aria p

innata


Goz

npho

nezn

a an

gu

stat

um

Gyro

sigm

a spencerii

Hannaea

arcus

--

--

--

14

0.2

Hannaea

arcus

var.

az

nphi

oxys

Hannaea

arcu

s va

r. arcus

Hantzschia am

phio

xys

Meri

dion

circulare

Wavi

cula

arvensis

14

0.1

--

68

0.9

Wavi

cula

capitata

Wavicula cr

ypto

ceph

ala

Navi

cula

cr

ypto

ceph

ala

var.

ve

neta

--

--

--

--

--

--

57

0.6

Wavi

cula

gastrum

Wavicu-Za he

ufle

ri

--

--

--

--

--

--

19

0.2

Navi

cula

lanceolata

Navi

cula

luzonensis

--

--

--

--

--

--

38

0.4

Wavi

cula

znenisculus

var.

up

saliensis

Navi

cula

mi

nima

Navi

cula

min

uscu

la

--

--

--

--

68

0.9

Navi

cula

mu

tica

Navi

cula

not

ha

--

--

--

--

28

0.4

19

0.2

Navi

cula

pel

lico

saNa

vicu

la p

upul

aNa

vicu

la ra

dios

aNa

vicu

la ra

dios

a va

r. te

nell

aNavicula rh

ynco

ceph

ala

14

0.1

200

2.1

19

0.2

Navi

cula

sabinians

var.

intermedia

Navi

cula

ta

ntul

aNa

vicu

la tr

ipun

ctat

a

--

19

0.2

Navi

cula

vi

ridu

laNa

vicu

la viridula v

ar.

avea

me

--

--

57

0.6

Navi

cula

viridula va

r. avenacea

Navi

cula

sp.

Nitz

schi

a acicularis

Nitz

schi

a communis

12

0.1

Nitz

schi

a dissipata

--

32

0.3

180

2.4

960

10.9

Nitz

schi

a filiformis

Nitz

schi

a fr

ustu

lum

Nitz

schi

a ha

ntzs

chia

naNi

tzsc

hia

hung

aric

aNi

tzsc

hia

ignorata

--

--

240

2.7

Nitz

schi

a intermedia

Nitz

schi

a latens

Nitz

schi

a li

near

is

--

--

--

--

90

1.2

Nitz

schi

a lo

ngis

sima

var

. re

vers

aNi

tzsc

hia

microcephala

Nitz

schi

a pa

lea

--

45

0.6

360

4.1

Nitz

schi

a pa

leac

ea

310

2.2

81

0.8

450

6.0

960

10.9

Nitz

schi

a pu

sill

aNi

tzsc

hia

roma

naNi

tzsc

hia

ther

mali

sNi

tzsc

hia

tryblionella va

r. debilis

Nitz

schi

a sp.

~

120

1.4

Pleurosigma

delicatalum

Rhoicosphenia

curv

ata

--

--

--

--»

Rhopalodia musculus

Suri

rell

a angustata

Suri

rell

a ovalis

Suri

rell

a ov

ata

Syne

dra

acus

38

0.3

19

0.2

170

1.9

Syne

dra

delicatissima

38

0.3

39

0.4

110

1.5

230

2.6

Tabl

e 15

.--T

axa

t numbers/ and percent

composition

of phytoplankton at si

tes

1 and

2 in Kenney Res

ervo

ir/

water years

1985-87 Continued

PHYLUM

ORDER

Genu

s species

BACILLARIOPHYTA

(DIA

TOMS

) --Continued

PENNALES- -C

onti

nued

Syne

dra

fasc

icul

ate

Synedra

minuscula

Snyedra

radiens

Syne

dra

rumpens

Syne

dra

rumpens

var.

fa

mili

aris

Syne

dra

ulna

Synedra

ulna va

r. co

ntra

cta

Synedra

ulna

va

r. danica

Synedra

ulna

va

r. ox

yrhy

nchu

sSynedra

sp.

rhal

assi

osir

a fl

uvia

tili

s

CHLOROPHYTA

(GRE

EN ALG

AE)

Acti

nast

rum

hant

zsch

iiAc

tina

stru

m sp.

Kenn

ey Reservoir (s

ite

1)2-

ft

depth

Cell

s % Co

mp

Composite

(0-1

0 ft)

Cell

s % Comp

Kenn

ey Reservoir

(sit

e 2)

2-ft

depth

Cells

% Comp

Comp

osit

e (0

-10

ft)

Cells

% Comp

July 19,

1985--Continued

150

1.1

580

4.1

-- 770

5.5

150

1.1

-- -- -- .- --

5,40

0 38

.6__ 200

1.4

-- 97

1.0

210

2.1

19

0.2

350

3.5

190

1.9

39

0.4

-- -- ----

5,200

52.0

__ __

160

2.1

-- -- --1,

600

21.3

1,10

0 14.7

110

1.5

-- -- --

1,40

0 18.7

__ __

110

1.3

450

5.1

-- 57

0.6

1,30

0 14

.874

0 8.4

-- -- -- 85

1.0

1,60

0 18.2

__ __An

feis

trod

esmu

s co

nvol

utus

An

feis

trod

esmu

s convolutus v.

acicul

aris

Anki

strode

smus

falcatus

Anki

strode

smus

falcatus va

r.ac

icul

aris

Anki

stro

desm

us falcatus va

r.mira

Jbil

is

Cart

eria

sp

. Ch

lamy

domo

nas

sp.

Chlo

rell

a sp

. Chloroco

ccum

hum

icol

a Chlorococcum sp.

Chlorogonium spirale

28

0.4

110

0.8

57

0.6

170

1.2

280.4

280.3

Chlo

rogo

nium

sp.


Clos

teri

um sp.

Cocc

omyx

a minor

Crucigenia qu

adra

ta

Dictyosphaerium

ehrenbergianum

Dictyospha

eriu

m pulchellum

Dict

yosp

haer

ium

sp.

Gloeocysti

s sp.

Golenkinia ra

diat

a Go

lenk

iniops

is solitaria

Gonium sp.

Kirc

hner

iell

a contorta

Mesotaenium

sp.

Micr

atin

ium pu

sill

um

Micr

atin

ium

sp.

Moug

eoti

a sp.

Oocytis

sp.

Pand

orin

a morum

Phac

otus

lenticularis

Phacotus sp.

Platymonas sp.

Pteromonas sp.

Scen

edes

mus

arma

tus

Scen

edes

mus

hijuga

Scen

edes

mus

dimorphus

Scen

edes

mus

quadricauda

Scen

edes

mus

serr

atus

Sc

ened

esmu

s sp.

Schroederia

juda

yi

Schroederi

a setigera

Sele

nast

rum minutum

Spha

eroc

ysti

s schroeteri

Stau

rast

rum

sp.

Treubaria

sp.

170

1.2

280

2.8

4,60

0 32

.9

4,700

47.0

28

0.3

85

0.6

57

0.4

28

0.2

28

0.2

280

3.7

28

0.4

800

10.7

110

1.1

140 57

1.9

0.8

28

0.4

800

340

450

9.1

3.9

5.1

28

0.3

28

0.3

57

0.8

Table

15.-

-rax

a, nu

mber

s/ an

d pe

rcen

t co

mpos

itio


si

tes

1 an

d 2

in K

enney

Rese

rvoi

r, wa

ter

year

s 1985-87-

-Continued

PHYL

UM

ORDER

Genus

spec

ies

Kenney Reservoir (s

ite

1)2-

ft

Comp

osit

e depth

(0-1

0 ft)

Kenn

ey Reservoir (s

ite

2)2-ft

Comp

osit

e___________

__________

depth

(0-1

0 ft

)Cells

% Comp

Cell

s % Co

mp

Cells

% Comp

Cells

% Comp

CHRYSOPHYTA

(GOLDEN-BROWN

ALGAE)

Dino

bryo

n divergens

Kephyrion

spir

ale

Keph

yrio

n sp.



Mallomonas globosa

Mallomonas sp.

Pleu

rosi

gma

deli

catu

lum

Pleurosigma

sp.

Ochromonas sp.

CYANOPHYTA (B

LUE-

GREE

N ALGAE)

AnaJ

baen

a sp.

Aphanocapsa

deli

cati

ssim

a Aphanocapsa

sp.

Aphanothece

sp.

Chro

ococ

cus

dispersus

Chro

ococ

cus

limneticus

Chro

ococ

cus

sp.


Dact

yloc

occo

psis

sp.

Lyngbya

limnetica

Lyngbya

nana

Marssoniella elegans

Oscillatoria angusta

Oscillatoria an

gust

issi

ma

Osci

llat

oria

limnetica

Osci

llat

oria

te

nuis

Oscillatoria sp

.

0.0

4,30

0 30

.7

230

1.6

July 19,

1985

--Co

ntin

ued

0 0.0

0 0.0

0.0

540

5.4

910

12.1

0.0

510

3.6

1,70

0 12.1

230

2.3

110

0.8

280

2.8

Phormidiiun

sp.

Syne

choc

occu

s lineare

57

0.4

Syne

choc

occu

s sigmoidea

Synechococcus

sigmoidea

f. mi

nor

Syne

choc

occu

s sp.

1,700

12.1

28

0.3

910

12.1

CRYPTOPHYTA

(CRY

PTOM

ONAD

S)

57

0.4

85

0.9

57

0.8

28

0.3

Chroomonas sp.

57

0.4

28

0.3

Cryp

tomo

nas

eros

a --

--

57

0.6

57

0.8

28

0.3

Cryp

tomo

nas

marsonii

Cryp

tomo

nas

ovata

Cryp

tomo

nas

rost

rata

Cr

ypto

mona

s ro

stra

tifo

rmis

Cr

ypto

mona

s sp.

Rhodomon

as mi

nuta

EUGL

ENOP

HYTA

(EUGLENOIDS)

28

0.2

0 0.0

0 0.

0 57

0.

6 Eu

glen

a acus

Eugl

ena

viri

dis

Eugl

ena

sp.

--

--

--

--

57

0.6

Trac

helo

mona

s sp.

PYRRHOPHYTA

(DINOFLAGELLATES)

Cera

tium

hir

undi

nell

aGymnodinium

sp.

Peridiniiun bi

ceps

Peri

dini

um in

cons

picu

aPeridiniiun

sp.

Total

cell

s and

perc

ent

comp

osit

ion

Number of

sp

ecie

sDiversity

inde

x (D

I) at

species

level

Biomass

(mg/

L dry

weight)

Chlo

roph

yll

a (p

g/L)

Chlorophyll

b (p

g/L)

Chlo

roph

yll

c (p

g/L)

28 56 -- -- 28 28

14,0

00 343.

51 3.2

2.1

3.4

8.4

0.2

0.4

28

0.3

__ __ 0.2

0.2

28

0.3

97

10,0

00

100

262.85 3.5

1.9

0.3

0.7

__ 56

0.7

28

0.4

__ __ 28

0.4

__

7,50

0 100

333.

83 4.4

5.3

7.5

9.5

__

__

0 0.

0__ __ __ __ __

8,80

0 10

0

314.

02 6.5

1.1

1.4

5.4

Tabl

e 15.--Taxa, numbers, and percent composition

of phytoplankton at sites

1 and

2 in

Ke

nney

Reservoir,

water

years

1985

-87-

-Con

tinu

ed

PHYLUM

ORDER

Genus

species

BACILLARIOPH

YTA

(DIA

TOMS

)CENTRALES

Cycl

otel

la bo

dani

caCyclotella kutzingiana

Cycl

otel

la me

negh

inia

naCy

clot

ella

pse

udos

tell

iger

aCyclotella st

elli

gera

Melosira granulata

var. angrustissima

Melosira italica

Melo

sira

lirata

Melosira sp.

Khiz

osol

enia

eriensis

Step

hano

disc

us al

pinu

sStephanodiscus as

trea

Step

hano

disc

us ni

agar

aeSt

epha

nodi

scus

tenuis

Step

hano

disc

us sp.

Kenn

ey Reservoir (s

ite

1)2-

ft

depth

Cell

s % Co

mp

4,900

44.5

4,90

0 44

.5-- -- 28

0.3

4,800

43.6

28

0.3

-- __ __ __ __ -- -- __

Comp

osit

e (0

-10

ft)

Cell

s % Co

mp

Augu

st

3,70

0 42

.23,600

41.4

-- -- --3,

600

41.4

-- __ __ __ __ __ __ -- -- __

Kenney Re

serv

oir

(sit

e 2)

2-ft

depth

Cells

% Comp

7, 1985

1,300

52.0

1,100

44.0

-- __ 85

3.4

1,000

40.0

__ __ __ __ __ -- -_

Comp

osit

e (0

-10

ft)

Cell

s % Comp

740

27.4

460

17.0

-- __ 57

2.1

370

13.7

-- __ __ __ __ __ 28

1.0

-- --

PENN

ALES

Achn

anth

es affinis

Achn

anth

es la

nceo

lata

Achnanthes mi

nuti

ssim

a Amphora

perpusilla

Amphora

veneta

Amph

ora

sp.

Asterionella fo

rmos

a Co

ccon

eis

placentula

Cylindrotheca

gracilis

Cylindrotheca

sp.

Cymatopleura so

lea

280.3

570.7

204

8.2

280

10.4

Cymb

ella

af

fini

sCymbella m

inuta

Cymbella m

inuta

f. 2atens

Cymb

ella

minuta

var.

silesica

Cymbella si

nuat

aDi

atom

a anceps

Diat

oma

hiem

ale

var.

mesodon

Diat

oma

tenu

e va

r. e2

onga

tum

Diat

oma

vulgare

Dipl

onei

s sp.

Epit

hemi

a so

rex

Euno

tia

sp.

Fragilaria capucina

Fragilaria cr

oton

ensi

sFragilaria pinnata


Gomp

hone

ma angustatum

Gyro

sigm

a spencerii

Hann

aea

arcus

Hannaea

arcus

var.

amphioxys

Hann

aea

arcus

var.

arcus


Meridion c

ircu

lare

Navi

cula

ar

vens

isNa

vicu

la capitata

Navi

cula

cr

ypto

ceph

ala

Navi

cula

cryptocephala

var.

vene

taNa

vicu

la ga

stru

mNa

vicu

la h

eufl

eri

Navi

cula

la

nceo

lata

Navi

cula

luzonensis

Navi

cula

menisculus

var.

upsaliensis

Navi

cula

minima

Navi

cula

min

uscu

laNa

vicu

la mu

tica

Navi

cula

notha

Navi

cula

pel

lico

saNa

vicu

la p

upul

aNa

vicu

la ra

dios

aNa

vicu

la ra

dios

a va

r. tene22a

28

1.1

28

1.1

28

1.0

7 0.

3

28

1.1

14

0.5

Tabl

e 15. Taxa,

numb

ers,

an

d percent

composition

of p

hi/t

opla

nkto

n at

si

tes

1 an

d 2

in K

enne

y Reservoir, wa

ter

year

s 1985-87--Continued

PHYLUM

ORDER

Genu

s sp

ecie

s

Kenn

ey Reservoir (s

ite

1)2-

ft

depth

Cells

% Co

mp

Comp

osit

e (0

-10

ft)

Cells

% Co

mp

Kenn

ey Reservoir

(sit

e 2)

2-ft

depth

Cell

s % Comp

Composite

(0-1

0 ft

)Cells

% Comp

BACILLARIOPHYTA

(DIA

TOMS

)--C

onti

nued

PE

NNAL

ES Con

tinu

ed

Navi

cula

rhyncocephala

Navi

cula

sabinians

var.

in

term

edia

Navi

cula

ta

ntul

a Na

vicu

la tr

ipun

ctat

a Na

vicu

la viridula

Navi

cula

vi

ridu

la va

r. av

eame

Na

vicu

la vi

ridu

la v

ar.

aven

acea

Na

vicu

la sp.

Nitz

schi

a acicularis

Nitz

schi

a communis

Nitz

schi

a di

ssip

ata

Nitz

schi

a filiformis

Nitz

schi

a fr

ustu

lum

Nitz

schi

a ha

ntzs

chia

na

Nitz

schi

a hu

ngar

ica

Nitz

schi

a ig

nora

ta

Nitz

schi

a intermedia

Nitz

schi

a latens

Nitz

schi

a li

near

is

Nitz

schi

a lo

ngis

sima

var

. reversa

Nitz

schi

a mi

croc

epha

la

Nitz

schi

a pa

lea

Nitz

schi

a pa

leac

ea

Nitz

schi

a pusilla

Nitz

schi

a ro

mana

Ni

tzsc

hia

thermalis

Nitz

schi

a tr

ybli

onel

la va

r. de

bili

s Ni

tzsc

hia

sp.

Augu

st 7, 1985--Continued

281.

1

570.7

281.

1

57

2.3

28

1.0

28 57 14 28 28

1.0

2.1

0.5

1.0

1.0

Pleurosigz

na de

lica

talu

mRhoicosphenia

curvata

Rhopalodia musculus

Surirella

angustata

Surirella

oval

isSurirella

ovat

a

28

1.0

Syne

dra

acus

Syne

dra

delicatissima

Syne

dra

fasc

icul

ate

Syne

dra

minu

scul

aSn

yedr

a ra

dien

sSy

nedr

a ru

mpen

sSy

nedr

a rumpens

var.

familiaris

Syne

dra

ulna

28

0.3

--

~

~

28

1.0

Syne

dra

ulna

var

. contracta

Syne

dra

ulna va

r. danica

Syne

dra

ulna v

ar.

oxyr

hync

hus

Syne

dra

sp.

Thal

assios

ira

fluviatilis

CHLO

ROPH

YTA

(GREEN A

LGAE)

5,600

50.9

4,900

56.3

1,100

44.0

1,500

55.6

Acti

nast

ruro

han

tzsc

hii

Actinastru

m sp.

Anki

stro

desmus co

nvol

utus

An

kist

rodesmus co

nvol

utus

v.

acicularis

Ankistrodesmus fa

lcat

us

Ankistrodesmus fa

lcat

us va

r.acicularis

Ankistrodesmus fa

lcat

us va

r. mi

rabi

lis

Cart

eria

sp.

110

1.0

28

0.3

--

28

1.0

Chla

mydo

mona

s sp

. --

57

0.7

28

1.1

170

6.3

Ch.Z

ore2

.Za

sp.

Chlo

rococc

um hum

icol

aCh

loro

cocc

um sp.

28

0.3

85

1.0

--

Chlo

rogo

nium sp

iral

e Ch

loro

goni

um sp.

Chodatella qu

adri

seta

Cl

oste

rium sp.

Coccomyxa

minor

Crucigenia qu

adra

ta

Tabl

e l5

.--T

axa,

numbers, an

d percent

composition

of phy

topl

ankt

on at

si

tes

1 an

d 2

in Kenney

Rese

rvoi

r, wa

ter

years

1985

-57-

-Con

tinu

ed

Kenn

ey Reservoir

(sit

e 1)

Kenney Reservoir (s

ite

2)Rn

2-ft

Co

mpos

ite

2-ft

Comp

osit

er

. depth

(0-1

0 ft)

depth

(0-1

0 ft)

nus

sPec

ies

Cell

s % Comp

Cells

% Co

mp

-Cells

% Co

mp

Cells

% Co

mp

CHLOROPHYTA

(GREEN ALGAE)-Continued

AugU

St 7

> ^--Continued

Dictyosphaerium

ehrenbergianum

Dictyosphaerium pulchellum

Dictyosphaerium

sp.

Gloeocysti

s sp.

--

--

--

28

1.1

Gole

nkin

ia radiata

Gole

nkin

iops

is solitaria

Gonium sp

.Ki

rchn

erie

lla

contorta

Weso

taen

ium

sp.

Micr

atin

ium pusillum

Micr

atin

ium

sp.

Woug

eoti

a sp.

Oocy

tis

sp.

Pandorina

mori

on

--

--

--

--

--

--

340

12.6

Phacotus le

ntic

ular

isPhacotus sp.

5,400

49.1

4,700

54.0

77

0 30

.8

940

34.8

Platymonas sp.

Pteromonas sp

. --

--

--

--

--

--

28

1.0

Scen

edes

mus

armatus

--

--

--

--

37

1.5

Scen

edes

mus

biju

gaSc

ened

esmu

s di

morp

hus

Scen

edes

mus

quadricauda

Scen

edes

mus

serratus

Scen

edes

mus

sp.

Schroede

ria

juda

yiSc

hroe

deri

a setigera

Selenastrum minutum

57

0.5

Spha

eroc

ysti

s schroeteri

Staurastru

m sp

. --

--

230

9.2

Treubaria

sp.

CHRY

SOPH

YTA

(GOL

DEN-

BROW

N ALGAE)

Dino

bryo

n divergens

Keph

yrio

n spirale

Keph

yrio

n sp.

Mall

omon

as acaroides


Mall

omon

as gl

obos

a Ma

llom

onas

sp.

Pleurosigma

delicatulum

Pleurosigma

sp.

Ochromonas sp.


ALGA

E)

Anab

aena

sp

.Aphanocapsa

delicatissima

Aphanocapsa

sp.

Aphanothece

sp.

Chro

ococ

cus

dispersus

Chroococcus

limneticus

Chro

ococ

cus

sp.

Dact

yloc

occo

psis

fascicularis

Dact

yloc

occo

psis

sp

. Lyngbya

limnetica

Lyngbya

nana

Ma

rsso

niel

la el

egan

s Os

cill

ator

ia angusta

Osci

llat

oria

an

gust

issi

ma

Osci

llat

oria

limnetica

Oscillatoria tenuis

Osci

llat

oria

sp.

Phor

midi

um sp.

Syne

choc

occu

s lineare

Syne

choc

occu

s sigmoidea

Syne

choc

occu

s sigmoidea

f. mi

nor

Syne

choc

occu

s sp

.

CRYPTOPHYTA

(CRYPTOMONADS)

Chro

omon

as sp.

Cryp

tomo

nas

erosa

Cryptomonas

mars

onii

Cryptomonas

ovata

0.0

28

0.3

28

0.3

57

2.3

28

1.0

57

2.3

140

1.3

0 0.0

28

1.1

85

0.8

28

1.1

57 56 28

0.5

0.5

0.3

28 28

0.3

0.3

56 28 28

2.2

1.1

1.1

28

1.0

230

8.5

230

8.5

230 85 57

8.4

3.1

2.1

Tabl

e 15. Taxa,


comp

osit

ion

of phy

topl

ankt

on at

si

tes

1 an

d 2

in K

enne

y Reservoir, water

years

1985

-87 Continued

PHYLUM

ORDER

Genus

spec

ies

Kenn

ey Reservoir

(sit

e 1)

Kenn

ey Reservoir

(sit

e 2)

2-ft

depth

Comp

osit

e (0

-10

ft)

2-ft

depth

Composite

(0-1

0 ft)

Cells

% Co

mp

Cells

% Co

mp

Cells

% Comp

Cells

% Co

mp

CRYP

TOPH

YTA

(CRY

PTOM

ONAD

S) C

onti

nued

Cr

ypto

mona

s rostrata

Cryptomonas

rost

rati

form

is

Cryp

tomo

nas

sp.

Rhodomonas mi

nuta

EUGLENOPHYTA (E

UGLE

NOID

S)

Euglena

acus

Euglena

viri

dis

Eugl

ena

sp.

Trachelomonas

sp.

PYRRHOPHYTA

(DINOFLAGELLATES)

Ceratium hir

undi

nell

a Gymnodinium

sp.

Peri

dinium bic

eps

Peridinium in

cons

picu

a Pe

ridi

nium sp.

August 7,

1985 Continued

280.

3

0.0

0.0

0 0.

00

0.0

0 0.

00

0.0

85

3.1

0 0.

0

0 0.

0

Total

cell

s and pe

rcen

t composition

Number of sp

ecie

sDiversity

inde

x (DI) at sp

ecie

s le

vel

Biomass

(mg/

L dry

weig

ht)

Chlorophyll

a (pg/L)

Chlo

roph

yll

b (Mg/L)

Chlorophyll

c (Mg/L)

11,000

97

121.36 5.0

1.6

2.1

2.0

8,700

99

81.

24 3.4

1.8

2.7

1.4

2,500

102

182.60 1.9

0.8

1.9

2.7

2,700 23

3.33 1.8

1.0

0.3

0.0

101 __ -- -- -- --

August 28,

1985

BACILLARIOPHYTA

(DIATOMS)

CENT

RALE

SCy

clot

ella

bo

dani

caCy

clot

ella

kutzingiana

Cyclotella m

eneg

hini

ana

Cycl

otella

pseudostelligera

Cyclotella st

elli

gera

Melo

sira

gr

anul

ata

var.

an

gustis

sima

Melo

sira

italica

Melo

sira

lirata

Melo

sira

sp.


Step

hanodi

scus

alpinus


Step

hano

disc

us ni

agar

aeSt

epha

nodi

scus

tenuis

Stephanodiscus sp.

PENN

ALES

Achnanthes af

fini

sAc

hnan

thes

lanceolata


Amphora

perpusilla

Amphora

vene

taAmphora

sp.

Aste

rion

ella formosa

Cocconeis

placentula

Cylindrotheca

grac

ilis

Cyli

ndro

thec

a sp.

Cymatopleura so

lea

Cymbella affinis

Cymb

ella

minuta

Cymbella mi

nuta

f.

latens

Cymb

ella mi

nuta

var

. silesica

Cymb

ella

sinuata

Diatoma

anceps

Diatoma

hiemale

var.

me

sodo

n

0.0

0.0

610

580 85 500

38.1

36.3 5.3

31.3

0.0

281.

8

330

160 57 99 170 14 57

23.6

11.4 4.1

7.1

12.1 1.0

4.1

590 14 14

31.1

0.7

0.7

580

30.5

14 710.

7 3.7

Table

15. Taxa,


comp

osit

ion

of phy

topl

ankt

on at

si

tes

1 an

d 2

in K

enney

Reservoir, water

year

s 19

85-8

7--Conti

nued

PHYLUM

ORDER

Genus

spec

ies

Kenn

ey Reservoir

(sit

e 1)

Kenn

ey Reservoir

(sit

e 2)

2-ft

depth

Composite

(0-1

0 ft)

2-ft

depth

Composite

(0-1

0 ft)

Cells

% Co

mp

Cells

% Co

mp

Cells

% Comp

Cell

s % Comp

to

to

BACI

LLAR

IOPH

YTA

(DIATOMS)--Continued

PENNALES--Co

ntin

ued

Diatoma

tenu

e va

r. elongation

Diatoma

vulgare

Dipl

onei

s sp

.Ep

ithe

mia

sorex

Euno

tia

sp.

Fragilaria ca

puci

naFragilaria cr

oton

ensi

sFragilaria pi

nnat

aFragilar

ia va

uche

riae

Gomp

honema

angustatim

Gyrosigma

spencerii

Hannaea

arcus

Hannaea

arcu

s va

r. amphioxys

Hannaea

arcus

var. ar

cus

Hantzsch

ia amphioxys

Meridion circulare

Navi

cula

ar

vens

isNa

vicu

la ca

pita

taNa

vicu

la cr

ypto

ceph

ala

Navi

cula cr

ypto

ceph

ala

var.

ve

neta

Navi

cula

gastrum

Navi

cula

heu

fier

iNa

vicu

la lanceolata

Navi

cula

lu

zone

nsis

Navi

cula

men

iscu

lus

var.

up

sali

ensi

sNa

vicu

la m

inima

Navi

cula

min

uscu

laNa

vicu

la m

utica

Navi

cula

not

ha

August 28

, 1985--Continued

140.

7

14 28

0.7

1.5

140.

7

Navi

cula

pel

lico

saNa

vicu

la p

upul

aNa

vicu

la ra

dios

aNa

vicu

la radiosa

var.

tenella

Navi

cula

rh

ynco

ceph

ala

Navi

cula

sabinians

var. interm

edia

Navi

cula

tantula

Navi

cula

tr

ipun

ctat

aNa

vicu

la viridula

Navi

cula

vi

ridu

la v

ar.

avea

meNa

vicu

la viridula va

r. av

enac

eaNa

vicu

la sp

.Ni

tzsc

hia

acicularis

Nitz

schi

a co

mmun

isNi

tzsc

hia

diss

ipat

aNi

tzsc

hia

filiformis

Nitz

schi

a frustulum

Nitz

schi

a ha

ntzs

chia

naNi

tzsc

hia

hung

aric

aNi

tzsc

hia

ignorata

Nitz

schi

a intermedia

Nitz

schi

a Iatens

Nitz

schi

a li

near

isNi

tzsc

hia

longissima va

r. re

vers

aNi

tzsc

hia

microcephala

Nitz

schi

a pa

lea

Nitz

schi

a pa

leac

eaNi

tzsc

hia

pusilla

Nitz

schi

a ro

mana

Nitz

schi

a th

erma

l is

Nitz

schi

a tr

ybli

onel

la va

r. debilis

Nitz

schi

a sp.

Pleu

rosi

gma

delicatalum

Rhoi

cosp

heni

a curvata

Rhopalodia mu

scul

usSu

rire

lla

angustata

Suri

rell

a ov

alis

Suri

rell

a ov

ata

Syne

dra

acus

Syne

dra

delicatissima

432.

3

14 28

0.7

1.5

141.0

0.4

0.5

14 437

1.0

3.1

0.5

7 14 28 14 43 43 7 43 71 7 14 14

0.4

0.7

1.5

0.7

2.3

2.3

0.4

2.3

3.7

0.4

0.7

0.7

140.

7

141.0

Tabl

e 15.--Ta.xa,


comp

osit

ion

of phy

topl

ankt

on at

sites

1 and

2 in

Ke

nney

Reservoir, water

years

1985-87--Continued

PHYLUM

ORDER

Genu

s species

Kenney Re

serv

oir

(sit

e 1)

2-ft

Composite

depth

(0-1

0 ft

)

Kenney Reservoir

(sit

e 2)

2-ft

Composite

__

___

depth

(0-1

0 ft)

Cells

% Comp

Cells

% Comp

Cells

% Co

mp

Cells

% Comp

BACILLARIOPHYTA

(DIATOMS) Continued

PENN

ALES

--Co

ntin

ued

Synedra

fasc

icul

ate

Synedra

minu

scul

a Snyedra

radi

ens

Synedra

rump

ens

Synedra

rump

ens

var.

fa

mili

aris

Synedra

ulna

Synedra

ulna var. co

ntra

cta

Synedra

ulna var. danica

Synedra

ulna

va

r. oxyrhynchus

ro

Synedra

sp.

Thalassiosira

fluv

iati

lis

CHLOROPHYTA

(GREEN AL

GAE)

Actinastru

m ha

ntzs

chii

Ac

tina

stru

m sp.

Anki

stro

desm

us co

nvol

utus

An

kist

rode

smus

co

nvol

utus

v.

acic

ular

isAn

kist

rode

smus

fa

lcat

us

Anki

stro

desm

us falcatus var.

acicul

aris

Anki

stro

desm

us falcatus var. miraMlis

Carteria sp

. Chlamydomonas

sp.

Chlorella

sp.

Chlorococcum hum

icol

a Chloroco

ccum

sp.

Chlorogoni

um sp

iral

e

August 28

, 1985--Continued

281.

8

370

52.1

680

42.5

270

19.3

28

260

3.9

36.6

28 310

1.8

19.4

14 28

1.0

2.0

140.

7

0.0

fo

Chlo

rogo

nium

sp.


Closterium sp.

Coccomyxa

mino

r Crucigenia quadrata

Dict

yosp

haerium

ehrenbergianum


Dict

yosp

haer

ium

sp.

Gloeocys

tis

sp.

Golenkinia radiata

Gole

nkin

iops

is so

lita

ria

Gonium sp.

Kirc

hner

iell

a contorta

Meso

taen

ium

sp.


Micratinium

sp.

Moug

eoti

a sp.

Oocy

tis

sp.

Pandorina

morum

Phac

otus

lenticularis

Phacotus sp.

Platymonas sp.

Pter

omon

as sp.

Scen

edes

mus

armatus

Scenedes

mus

biju

ga

Scen

edes

mus

dimo

rphu

s Sc

ened

esmu

s qu

adri

caud

a Sc

ened

esmu

s serratus

Scen

edes

mus

sp.

Schr

oede

ria

juda

yi

Schroederia

setigera

Selenastrum mi

nutu

m Sphaerocystis

schroeteri

Staurastrum

sp.

Treubaria

sp.

282.

0

28

3.9

280

17.5

57

8.0

57

3.6

170

12.1

14

1.0

141.

0

ro ON

Tabl

e 15

.--r

axa,

numbers, and pe

rcen

t co

mpos

itio

n of phytoplankt

on at

si

tes

1 and

2 in

Kenney

Reservoir, wa

ter

year

s 1985-87-

-Con

tinued

PHYLUM

rVPTYPP

UKJJrjK

Genus

spec

ies

CHRY

SOPH

YTA

(GOLDEN-BROWN

ALGA

E)Di

nobr

yon

divergens

Keph

yrio

n sp

iral

eKe

phyr

ion

sp.



Mallomonas gl

obos

aMa

llom

onas

sp

.Pleurosigma

delicatulum

Pleurosigma

sp.

Ochromonas sp.

Kenn

ey Reservoir

(sit

e 1)

2-ft

Composite

depth

(0-1

0 ft

)Cells

% Comp

Cells

% Co

mp

Augu

st 28

,

28

3.9

7 0.4

__ -- -- -- __ -- 28

3.9

7 0.4

-- -- --

Kenney Reservoir

(sit

e2-ft

depth

Cells

% Comp

1985--Continued

500

35.7

360

25.7

110

7.9

-- __ __ 28

2.0

-- -- --

2)Composite

(0-1

0Cells

490

450 -- 14 -- 14 -- 14

ft)

% Comp

25.8

23.7 -- 0.7

-- -- -- 0.7

-- 0.7

--


ALGA

E)

AnaJbaena

sp.

Aphanoca

psa

deli

cati

ssim

a Aphanocapsa

sp.

Aphanoth

ece

sp.

Chro

ococ

cus

disp

ersu

s Ch

rooc

occu

s limneticus

Chro

ococ

cus

sp.

Dactyloc


Dactyloc

occopsis sp.

Lyng

bya

limnetic a

Lyngbya

nana

Marssoniella el

egan

s Os

cill

ator

ia angusta

Oscillatoria an

gust

issi

ma

Oscillatoria limnetica

Oscillatoria tenuis

Oscillatoria sp.

0.0

855.3

57 57

4.1

580

4.1

14

30.5 0.7

310

16.3

260

13.7

Phormidi

um sp.

Syne

choc

occu

s lineare

Syne

choc

occu

s sigmoidea

Syne

choc

occu

s sigmoidea

f. minor

Syne

choc

occu

s sp.

--

85

5.3

CRYP

TOPH

YTA

(CRYPTOMONADS)

310

43.7

170

10.6

28

2.0

0 0.

0 Chroomonas sp

. --

28

1.8

14

1.0

Cryptomo

nas

erosa

--

--

28

1.8

Cryptomo

nas

marsonii

28

3.9

57

3.6

Cryptomo

nas

ovat

aCr

ypto

mona

s ro

stra

ta

--

--

--

--

14

1.0

Cryptomo

nas

rost

rati

form

isCr

ypto

mona

s sp.

280

39.4

57

3.6

Rhodomonas mi

nuta

EUGLENOPHYTA (E

UGLE

NOID

S)

0 0.

0 0

0.0

200

14.3

19

0 10.0

Eugl

ena

acus

Euglena

viridis

Eugl

ena

sp.

--

--

--

--

200

14.3

190

10.0

!Tr a che

lom

onas sp.

r

PYRRHOPHYTA

(DIN

OFLA

GELL

ATES

)Ce

rati

um hirundinella

Gymnodinium

sp.

Peridinium biceps

Peridini

um in

cons

picu

aPeridini

um sp.

Total

cell

s and

perc

ent

comp

osit

ion

Numb

er of

sp

ecie

sDi

vers

ity

index

(DI) at sp

ecie

s level

Biom

ass

(mg/

L dry

weight)

Chlo

roph

yll

a (Mg/L)

Chlo

roph

yll

b (Mg/L)

Chlo

roph

yll

c (M

g/L)

0 __ -- -- 710 7

2.09 1.8

0.7

0.0

2.9

0.0

0__ __ __ __ --

--

100

1,60

0 132.87 3.2

1.9

0.5

1.6

0.0

14

14__ __ __

__

97

1,400 24

3.65 4.5

2.0

0.9

2.4

1.0

14__ 1.

0__

14--

--

100

1,900 34

3.80

10.8 2.4

1.4

7.7

0.7

-- -- -- 0.7

98

__ -- -- -- --

00

Tabl

e 15. Taxa,

numbers, and pe

rcen

t co

mpos

itio

n of phy

topl

ankt

on at

si

tes

1 an

d 2

in Kenney

Reservoir, wa

ter

years

1985-87--Continued

PHYLUM

ORDER

Genus

spec

ies

Kenn

ey Re

serv

oir

(sit

e 1)

2-ft

depth

Cell

s % Co

mp

Comp

osit

e (0

-10

ft)

Cells

% Co

mp

Kenney Re

serv

oir

(sit

e 2)

2-ft

depth

Cells

% Comp

Comp

osit

e (0

-10

ft)

Cell

s % Comp

September

17,

1985

BACILLARIOPHYTA

(DIATOMS)

110

23.9

470

CENTRALES

99

21.5

" 160

Cyclotella bo

dani

ca

Cyclotella ku

tzin

gian

aCy

clot

ella m

eneghiniana

28

6.1

14

Cycl

otel

la p

seud

oste

llig

era

57

12.4

99

Cycl

otel

la st

elli

gera

28

Melo

sira

granulata

var.

an

gust

issi

ma

Melo

sira

italica

Melo

sira

lirata

Melo

sira

sp.

Rhizosolenia er

iens

is

14

3.0

14

Step

hano

disc

us alpinus

Step

hano

disc

us as

trea

St

epha

nodi

scus

niagarae

Step

hano

disc

us te

nuis

St

epha

nodi

scus

sp.

PENNALES

14

3.0

310

Achnanthes affinis

Achn

anth

es lanceolata


Amph

ora

perpusilla

Amph

ora

vene

ta

Amph

ora

sp.

Asterionella fo

rmos

a Cocconeis

placentula

Cylindrotheca

gracilis

Cylindrotheca

sp.

Cymatopleura so

lea

67.1

22.9 2.0

14.1 4.0

2.0

44.3

1,20

0 28 28

80.0

1.

9

1.9

1,20

080

.0

2,60

0 85 85

2,500 57

89.7

2.9

2.9

86.2

2.0

Cymbella affinis

Cymbella m

inut

aCymbella mi

nuta

f.

Iatens

Cywbella m

inuta

var.

silesica

Cymb

ella

sinuata

Diatoma

ance

psDi

atom

a hiemale

var. mesodon

Diat

oma

tenue

var.

el

onga

tum

Diat

oma

vulg

are

Dipl

onei

s sp.

Epithemia

sore

xEu

noti

a sp.

Frag

ilar

ia ca

puci

naFr

agil

aria

cr

oton

ensi

sFr

agil

aria

pi

nnat

aFr

agil

aria

va

uche

riae

Gomp

hone

ma angustatum

Gyrosigma

spencerii

Hann

aea

arcu

sHannaea

arcus

var.

amphioxys

Hann

aea

arcus

var.

ar

cus


Meri

dion

circulare

Navi

cula

ar

vens

isNavicula ca

pita

taNa

vicu

la cr

ypto

ceph

ala

Navi

cula

cr

ypto

ceph

ala

var. veneta

Navi

cula

ga

stru

mNavicula heufleri

Navi

cula

lanceolata

Navi

cula

luzonensis

Navi

cula

me

nisc

ulus

va

r. up

saliensis

Navi

cula

min

ima

Navi

cula

mi

nusc

ula

Navi

cula

mu

tica

Navi

cula

no

tha

Navicula pe

llic

osa

Navi

cula

pu

pula

Navi

cula

ra

dios

aNavicula radiosa

var.

tenella

57

3.8

450

15.5

28

1.0

28

1.0

310

44.3

281.9

28

0.3

143.0

0.6

28 28 28 28 28 28

1.0

1.0

1.0

1.0

1.0

1.0

1.0

Tabl

e 15.--ra.xa/

numbers/ an

d pe

rcen

t co

mpos

itio

n of

phy

topl

ankt

on at

si

tes

1 and

2 in

Kenney

Reservoir, wa

ter

year

s 1985-87 Continued

PHYLUM

ORDER

Genu

s species

Kenney Re

serv

oir

(sit

e 1)

2-ft

depth

Cells

% Co

mp

Comp

osit

e (0

-10

ft)

Cells

% Co

mp

Kenney Re

serv

oir

(sit

e 2)

2-ft

depth

Cell

s % Comp

Composite

(0-1

0 ft

)Ce

lls

% Comp

BACILLARIOPH

YTA

(DIA

TOMS

)--C

onti

nued

PE

NNAL

ES--

Cont

inue

d Na

vicu

la rh

ynco

ceph

ala

Navi

cula sabinians

var.

intermedia

Navi

cula

tantula

Navi

cula

tripunctata

Navi

cula

vi

ridu

la

Navi

cula

viridula v

ar.

avea

me

Navi

cula

viridula v

ar.

aven

acea

Na

vicu

la sp.

Nitz

schi

a ac

icul

aris

Ni

tzsc

hia

communis

Nitz

schia

dissipata

Nitz

schi

a filiformis

Nitz

schia

frustulum

Nitz

schi

a ha

ntzs

chia

na

Nitz

schia

hung

aric

a Ni

tzsc

hia

ignorata

Nitz

schi

a intermedia

Nitz

schi

a la

tens

Ni

tzsc

hia

line

aris

Ni

tzsc

hia

longissima v

ar.

reversa

Nitz

schi

a mi

croc

epha

la

Nitz

schi

a pa

lea

Nitz

schi

a paleacea

Nitz

schi

a pu

sill

a Ni

tzsc

hia

roma

na

Nitz

schi

a th

erma

l is

Ni

tzsc

hia

tryblionella va

r. de

bili

s Ni

tzsc

hia

sp.

September

17,

1985--Continued

310

20.7

230

15.3

110

7.3

140

9.3

28

1.9

28

1.9

28

1.9

140

9.3

57

3.8

28

1.9

940

32.4

280

9.7

85

2.9

57

2.0

110 57

200

0.1

3.8

2.0

6.9

Pleu

rosi

gma

delicatalum

Rhoi

cosphe

nia

curvata

Rhopalodia musculus

Surirella

angustata

Surirella

ovalis

Surirella

ovat

aSy

nedr

a ac

usSy

nedr

a de

lica

tiss

ima

Syne

dra

fasc

icul

ate

Syne

dra

minu

scul

aSn

yedr

a radiens

Syne

dra

rumpens

Synedra

rumpens

var.

fa

mili

aris

Syne

dra

ulna

Syne

dra

ulna va

r. contracta

Syne

dra

ulna

var.

danica

Synedra

ulna v

ar.

oxyr

hync

hus

Syne

dra

sp.

rhal

assi

osir

a fluviatilis

CHLO

ROPH

YTA

(GREEN A

LGAE)

99

21.5

46

6.6

230

15.3

20

0 6.9

Acti

nast

rum ha

ntzs

chii

Ac

tina

stru

m sp

. Ankistrodesmus convolutus

Anki

stro

desm

us convolutus v.

acicularis

An/f

istr

odes

nius

fa

lcat

us

Ankistrodesmus fa

lcat

us va

r.acicularis


r. mi

rabi

lis

Carteria sp

. Ch

lamy

domo

nas

sp.

Chlorella

sp.

Chlo

roco

ccum

hum

icol

aCh

loro

cocc

um sp.

71

15.4

14

2.

0 Ch

loro

goni

um s

pirale

Chlo

rogo

nium

sp.

14

3.0

4 0.6


Closterium sp.

Coccomyxa

minor

Cruc

igen

ia qu

adra

ta

Tabl

e 15.--Taxa, nu

mber

s, and pe

rcen

t co

mpos

itio

n of

phytoplankton at

sites

1 and

2 in Ken

ney

Reservoir, water

year

s 19

85-8

7--Continued

PHYLUM

ORDER

Genus

species

Kenney Reservoir (s

ite

1)Kenney Re

serv

oir

(sit

e 2)

2-ft

Co

mpos

ite

2-ft

Composite

depth

(0-1

0 ft

) depth

(0-1

0 ft)

Cell

s % Comp

Cells

% Co

mp

Cell

s % Co

mp

Cell

s % Co

mp

CHLO

ROPH

YTA

(GREEN AL

GAE)

--Co

ntin

ued

Dict

yosp

haer

ium

ehrenbergianum

Dict

yosp

haer

ium pu

lche

llum

Dict

yosp

haer

ium

sp.

Gloe

ocys

tis

sp.

Gole

nkin

ia ra

diat

aGo

lenk

inio

psis

so

lita

ria

Goni

um sp

.Ki

rchn

erie

lla

contorta

Weso

taen

ium

sp.

M

Wicr

atin

ium pusillum

f£

Wicr

atin

ium

sp.

Moug

eoti

a sp.

Oocytis

sp.

Pand

orin

a moru

mPh

acot

us lenticularis

Phacotus sp.

Platymonas sp

.Pteromonas sp

.Sc

ened

esmu

s armatus

Scen

edes

mus

bijuga

Scen

edes

mus

dimo

rphu

sSc

ened

esmu

s quadricauda

Scen

edes

mus

serr

atus

Scen

edes

mus

sp.

Schr

oede

ria

judayi

Schroederia

setigera

Selenastrum mi

nutu

mSp

haer

ocys

tis

schroeteri

Staurastrum

sp.

Treujbaria sp

.

Sept

embe

r 17

, 1985--Continued

28

1.0

142.0

143.

0

142.

0

230

15.3

170

5.9

CO

CO

CHRY

SOPH

YTA

(GOL

DEN-

BROW

N ALGAE)

Dino

bryo

n divergens

Keph

yrio

n sp

iral

e Ke

phyr

ion

sp.



Mallomonas gl

obos

a Ma

llom

onas

sp.

Pleurosigma

delicatulum

Pleu

rosi

gma

sp.

Ochromonas sp.

CYAN

OPHY

TA (B

LUE-

GREE

N AL

GAE)

Anabaena sp.

Aphanoca

psa

delicatissima

Aphanoca

psa

sp.

Aphanoth

ece

sp.

Chroococ

cus

disp

ersu

s Ch

rooc

occu

s li

mnet

icus

Ch

rooc

occu

s sp

. Da

ctyl

ococ

cops

is fascicularis

Dact

yloc

occo

psis

sp.

Lyng

bya

limnetica

Lyng

bya

nana


Oscillatoria an

gust

a Oscillatoria an

gust

issi

ma

Osci

llat

oria

limnetica

Oscillatoria te

nuis

Oscillatoria sp.

Phor

midi

um sp.

Syne

choc

occu

s lineare

Syne

choc

occu

s sigmoidea

Syne

choc

occu

s sigmoidea

f. mi

nor

Syne

choc

occu

s sp.

CRYP

TOPH

YTA

(CRYPTOMONADS)

Chroomonas sp.

Cryp

tomo

nas

eros

a Cryptomo

nas

mars

onii

Cr

ypto

mona

s ovata

28 28

6.1

6.1

1.0

1.0

28

1.9

28

1.0

190

41.3

71

10.1

28

6.1

57

8.1

160 28 -- 14

34

.8

6.1

-- 3.0

14 110 14 28

2.0

15.7

2.0

4.0

28

1.9

0 0.

0

28

1.0

0 0.0

281.

928

1.0

Tabl

e 15

.--T

axa,

numbers, and pe

rcen

t composition

of phy

topl

ankt

on at

si

tes

1 and

2 in

Ken

ney

tfes

ervo

ir,

water

years

1985-87 Continued

PHYL

UM

ORDER

Genu

s sp

ecie

s

Kenn

ey Reservoir (s

ite

1)Ke

nney

Reservoir (s

ite

2)2-

ft

depth

Composite

(0-1

0 ft

)2-ft

depth

Comp

osit

e (0

-10

ft)

Cell

s % Co

mp

Cells

% Co

mp

Cell

s % Co

mp

Cell

s % Co

mp

CRYPTOPHYTA

(CRYPTOMONADS)--Continued

Cryp

tomo

nas

rost

rata

Cryptomonas

rostratiformis

Cryptomonas

sp.

Rhod

omon

as mi

nuta

EUGLENOPHYTA (E

UGLE

NOID

S)

Euglena

acus

Euglena

viri

dis

Euglena

sp.

Trachelo

mona

s sp

.

PYRRHOPHYTA

(DINOFLAGELLATES)

Ceratium hirundinella

Gymnodin

ium

sp.

Peridinium biceps

Peridinium in

cons

picu

a Peridinium sp.

Sept

embe

r 17,

1985--Continued

143.

0

0.0

0.0

71

10.1 0.0

28

1.9

0 0.0

0.0

0 0.

0

28

1.0

0 0.0

0 0.

0

Total

cell

s and

percent

composition

Number of species

Diversity

inde

x (D

I) at

sp

ecie

s le

vel

Biomass

(mg/

L dr

y we

ight

)

Chlo

roph

yll

a (j

Jg/L

)Ch

loro

phyl

l b ([

Jg/L

)Chlorophyll

c (j

Jg/L

)

460

99

123.00 0.8

1.1

2.8

0.4

700

101

162.

85 0.0

0.0

0.0

1.5

1,50

0 99

173.45 1.6

1.6

5.8

6.3

2,900 24

3.43 3.0

1.8

5.0

9.6

98

_ _

-- -- -- -- --

October

21,

1985

OJ 01

BACI

LLAR

IOPH

YTA

(DIATOMS)

140

100.

0 230

95.8

CENTRALES

99

70.7

180

75.0

Cy

clot

ella

bodanica

Cycl

otel

la ku

tzin

gian

aCy

clot

ella

meneghiniana

71

50.7

170

70.8

Cyclotella ps

eudo

stel

lige

raCy

clot

ella

stelligera

28

20.0

14

5.8

Melo

sira

gr

anul

ata

var.

an

gust

issi

ma

Nelo

sira

it

alic

a Me

losi

ra li

rata

Ne

losi

ra sp.


Step

hano

disc

us alpinus

Step

hano

disc

us as

trea

St

epha

nodi

scus

ni

agar

ae

Step

hano

disc

us te

nuis

St

epha

nodi

scus

sp.

PENNALES

42

30.0

53

22.1

Achn

anth

es affinis

Achnanthes lanceolata


Amphora

perpusilla

Amphora

vene

ta

Amphora

sp.

Aste

rion

ella

formosa

Cocconeis

placentula

Cylindrotheca

grac

ilis

Cylindrotheca

sp.

Cymatopleura so

lea

Cymbella af

fini

s Cymbella m

inuta

Cymbella m

inuta

f. la

tens

Cymbella mi

nuta

var

. si

lesi

ca

Cymbella sinuata

Diatoma

ance

ps

Diatoma

hiemale

var.

mesodon

710 0

86.6

0.0

990 0

710 28

86.6

3.4

990

28 85

3.4

10.4

57 28 85 57

76.2

0.0

76.2 4.4

2.2

6.5

4.4

Table

15.--Ta.xa,

numbers/ an

d percent

composition

of phytoplankton at

si

tes

I an

d 2

in K

enney

Reservoir, water

year

s 19

85-8

7 Continued

Kenney R

eser

voir

(s

ite

1)

Kenney R

eser

voir

(site

2)2-

ft

Composite

2-ft

Comp

osit

er

de

pth

(0-10

ft)

depth

(0-10

ft)

us sP

ecie

s Ce

lls

% Comp

Cells

% Co

mp

Cells

% Co

mp

Cells

% Co

mp

BACILLARIOPHYTA

(DIA

TOMS

)--C

onti

nued

°Ctober 21

« ^--Continued

PENNALES--

Continued

Diat

oma

tenue

var.

el

onga

tum

Diat

oma

vulg

are

--

--

--

--

28

3.4

170

13.1

Dipl

onei

s sp.

Epit

hemi

a sorex

Eunotia

sp.

Fragilaria ca

puci

naFragilaria cr

oton

ensi

sFragilaria pi

nnat

aFragilaria va

uche

riae

--

--

--

--

28

3.

4Gomphonema angustatum

Gyro

sigma

spencerii

--

--

--

--

--

--

14

0.7

Hann

aea

arcu

s --

--

28

11

.7Ha

nnae

a arcus

var.

amphioxys

Hannaea

arcu

s var. ar

cus


Weri

dion

circulare

Wavi

cula

ar

vens

isNa

vicu

la capitata

Navi

cula cr

ypto

ceph

ala

Navi

cula cr

ypto

ceph

ala

var.

ve

neta

14

10.0

--

--

28

3.4

57

4.4

Navi

cula

gastrum

Navi

cula he

ufle

riNa

vicu

la lanceolata

Navi

cula

luzonensis

Navi

cula

me

nisc

ulus

va

r. up

sali

ensi

sNa

vicu

la minima

Navi

cula mi

nusc

ula

Navi

cula

mu

tica

Navi

cula

notha

--

--

--

28

3.4

28

2.2

Navi

cula

pe

llic

osa

Navi

cula

pu

pula

Navi

cula

ra

dios

aNa

vicu

la ra

dios

a va

r. te

nell

aNa

vicu

la rh

ynco

ceph

ala

--

--

--

--

--

--

114

8.8

Navi

cula

sa

bini

ans

var. interm

edia

Navi

cula

tantula

Navi

cula

tripunctata

Navi

cula

viridula

--

--

--

--

--

--

114

8.9

Navi

cula

viridula v

ar.

avea

me

--

--

--

--

370

45.1

140

10.8

Navi

cula

viridula va

r. av

enac

eaNa

vicu

la sp.

Nitz

schi

a acicularis

Nitz

schi

a communis

Nitz

schia

dissipata

14

10.0

7 2.9

--

--

57

4.4

Nitz

schi

a fi

lifo

rmis

Nitz

schi

a frustulum

Nitz

schi

a ha

ntzs

chia

na

--

--

--

--

28

3.4

28

2.2

Nitz

schi

a hu

ngar

ica

Nitz

schi

a ig

nora

tau>

Nitz

schi

a intermedia

«^jNi

tzsc

hia

latens

Nitz

schi

a li

near

isNi

tzsc

hia

longissima va

r. re

vers

aNi

tzsc

hia

microcephala

Nitz

schi

a pa

lea

--

--

--

--

28

3.4

28

2.2

Nitz

schi

a pa

leac

ea

14

10.0

4 1.7

Nitz

schi

a pu

sill

aNi

tzsc

hia

roma

naNi

tzsc

hia

ther

mali

sNi

tzsc

hia

tryblionella va

r. debilis

Nitz

schi

a sp.

--

--

--

--

--

28

2.2

Pleu

rosi

gma

deli

cata

lum

Rhoicosphenia

curvata

Rhopalodia musculus

Surirella

angustata

Suri

rell

a ovalis

Suri

rell

a ov

ata

--

--

--

--

28

3.4

Syne

dra

acus

Syne

dra

delicatissima

Tabl

e 15. Taxa,

numbers, an

d percent

comp

osit

ion

of phy

topl

ankt

on at

sites

1 an

d 2

in Kenney

Reservoir, wa

ter

year

s 19

85-8

7--C

onti

nued

PHYLUM

ORDER

Genu

s sp

ecie

s

Kenney Reservoir (s

ite

1)Kenney Reservoir

(sit

e 2)

2-ft

depth

Comp

osit

e (0

-10

ft)

2-ft

depth

Composite

(0-1

0 ft

)Ce

lls

% Co

mp

Cell

s % Co

mp

Cell

s % Co

mp

Cell

s % Comp

00

BACILLARIOPHYTA


PENNALES--

Cont

inue

d Sy

nedr

a fa

scic

ulat

e Synedra

minu

scul

a Snyedra

radiens

Synedra

rump

ens

Syne

dra

rump

ens

var.

fa

mili

aris

Sy

nedr

a ulna

Syne

dra

ulna v

ar.

contracta

Syne

dra

ulna v

ar.

dani

ca

Syne

dra

ulna

var

. ox

yrhy

nchu

s Sy

nedr

a sp.

rhal

assios

ira

fluv

iati

lis

CHLO

ROPH

YTA

(GRE

EN A

LGAE)

Actinastrum

hant

zsch

ii

Actinastrum

sp.


Ankistrodesmus convolutus v.

acic

ular

isAnkistrodesmus fa

lcat

us

Ankistrodesmus fa

lcat

us va

r.acicularis

Ankistrodesmus fa

lcat

us va

r. mirabilis

Cart

eria sp.

Chla

mydomo

nas

sp.

Chlo

rell

a sp.

Chlo

rococcum hum

icol

a Ch

loro

coccum sp.

Chlo

rogo

nium

sp

iral

e

October

21,

1985

--Co

ntin

ued

145.

8

0.0

145.8

0.0

0.0

145.

8

Chlo

rogo

nium

sp.


Closterium sp.

Coccomyxa minor

Crucigenia quadrata

Dict

yosp

haer

ium

ehrenbergianum

Dict

yosp

haer

ium pulchellum

Dict

yosp

haer

ium

sp.

Gloe

ocys

tis

sp.

Golenkinia radiata

Gole

nkin

iops

is solitaria

Gonium sp

.Kirchneriella

cont

orta

Mesotaenium

sp.


Micr

atin

ium

sp.

Woug

eotia

sp.

Oocytis

sp.

Pandorina

morum


Phac

otus

sp.

Platymon

as sp.

Pteromon

as sp.

Scen

edes

mus

armatus

Scen

edes

mus

biju

ga

Scen

edes

mus

dimorphus

Scen

edes

mus

quad

rica

uda

Scen

edes

mus

serr

atus

Sc

ened

esmu

s sp.

Schr

oederi

a judayi

Schr

oederi

a se

tige

ra

Selenastrum mi

nutu

m Sp

haer

ocys

tis

schroeteri

Staurastrum

sp.

TreiLbar

ia sp.

Tabl

e l5.--Taxa

f numbers, an

d percent

composition

of phytoplankton at

si

tes

1 an

d 2

in K

enne

y Reservoir, water

years

1985

-87-

-Con

tinu

ed

PHYLUM

ORDER

Genu

s species

Kenney Reservoir (site

1)Kenney Reservoir (site

2)2-ft

depth

Composite

(0-10

ft)

2-ft

depth

Composite

(0-1

0 ft

)Ce

lls

% Comp

Cell

s % Comp

Cell

s % Comp

Cell

s % Comp

.£> O

CHRYSOPHYTA

(GOL

DEN-

BROW

N ALGAE)

Dino

bryo

n divergens

Keph

yrio

n sp

iral

e Ke

phyr

ion

sp.

Nall

omonas

acaroides

Nall

omonas

ak

roko

nos

Mall

omonas

gl

obos

a Mallomonas sp

. Pl

euro

sigm

a delicatuliun

Pleu

rosigm

a sp.

Ochr

omonas

sp.

CYAN

OPHY

TA (B

LUE-

GREE

N AL

GAE)

An

afaa

ena

sp.

Aphanoca

psa

deli

cati

ssim

a Aphanocapsa

sp.

Aphanothece

sp.

Chroococcu

s dispersus

Chro

ococ

cus

limneticus

Chroococcu

s sp.


Dactylococcopsis sp.

Lyng

bya

limn

etic

a Ly

ngby

a nana


Osci

llat

oria

angusta

Oscillatoria an

gust

issi

ma


Osci

llat

oria

te

nuis

Oscillatoria sp.

0.0

October 21

, 1985--Continued

0 0.0

0 0.0

0.0

0.0

0.0

110

13.4

280

280

21.5

21.8

110

13.4

Phormidium sp.

Syne

choc

occu

s li

near

e Sy

nech

ococ

cus

sigmoidea

Syne

choc

occu

s sigmoidea

f. mi

nor

Syne

choc

occu

s sp.

CRYP

TOPH

YTA

(CRYPTOMONADS)

0 0.

0 0

0.0

0 0.0

0 0.

0 Chroomon

as sp.

Cryp

tomo

nas

eros

a Cryptomo

nas

marsonii

Cryp

tomo

nas

ovata

Cryptomo

nas

rostrata

Cryp

tomo

nas

rost

rati

form

is

Cryp

tomo

nas

sp.

Rhodomonas mi

nuta

EUGL

ENOP

HYTA

(E

UGLE

NOID

S)

0 0.

0 0

0.0

0 0.

0 0

0.0

Eugl

ena

acus

Eu

glen

a vi

ridi

s Euglena

sp.

Trachelomonas

sp.

PYRRHOPHYTA

(DINOFLAGELLATES)

0 0.0

0 0.0

0 0.

0 0

0.0


Gymnodinium

sp.

Peridinium biceps

Peridinium in

cons

picu

a Peridinium sp.

Total

cell

s and

perc

ent

comp

osit

ion

Numb

er of

sp

ecie

sDi

vers

ity

index

(DI) at

sp

ecie

s le

vel

Biomass

(mg/

L dr

y weight)

Chlorophyll

a (pg/L)

Chlo

roph

yll

b (pg/L)

Chlorophyll

c (pg/L)

140

100

51.

95 3.0

<0.1 0.0

<0.1

240

102

71.

67 2.5

<0.1 0.0

<0.1

820

100

122.

75 4.6

3.1

0.0

4.3

1,30

0 153.

51 4.6

3.3

0.0

7.7

98

_ _ -- -- -- -- --

Si

Tabl

e 15.--Taxa, numbers, and percent

composition

of phy

topl

ankt

on at

sites

I and

2 in

Ken

ney

Reservoir, wa

ter

years

1985

-87-

-Con

tinu

ed

PHYLUM

ORDER

Genu

s sp

ecie

s

Kenney Re

serv

oir

(sit

e 1)

2-ft

depth

Cell

s % Co

mp

Comp

osit

e (0

-10

ft)

Cell

s % Co

mp

Kenn

ey Reservoir

(sit

e 2)

2-ft

depth

Cells

% Comp

Composite

(0-1

0 ft)

Cell

s % Comp

BACILLARIOPHYTA

(DIA

TOMS

) 1,

400

58.3

CENT

RALE

S 1,

300

54.2

Cy

clot

ella

bo

dani

ca

Cycl

otel

la ku

tzin

gian

aCyclotella me

negh

inia

na

28

1.2

Cyclotella ps

eudo

stel

lige

ra

Cycl

otel

la stelligera

Melo

sira

granulata

var.

angustissima

Melo

sira

italica

Melo

sira

li

rata

Me

losi

ra sp

. Rh

izos

olen

ia eriensis

Step

hano

disc

us al

pinu

s St

epha

nodi

scus

as

trea

St

epha

nodi

scus

ni

agar

ae

Step

hano

diso

us tenuis

Step

hano

disc

us sp.

1,300

54.2

PENNALES

56

2.3

Achnanthes affinis

Achnanthes lanceolata

Achn

anth

es mi

nuti

ssim

a Amphora

perp

usil

la

Amph

ora

vene

taAm

phor

a sp.

--

Asterionella formosa

Cocconeis

plac

entu

la

Cyli

ndro

thec

a gr

acil

is

Cyli

ndro

thec

a sp.

Cyma

topl

eura

so

lea

1,30

01,

300 28

Apri

l 24

, 19

86

92.9

92.9 2.0

1,30

0 92

.9

42

3.0

220 0

22.0

0.0

1,10

0 0100.0

0.0

220

22.4

1,10

0 10

3.6

110

10.0

Cymbella af

fini

sCymbella m

inuta

Cymbella m

inuta

f. 1 a

ten

sCymbella m

inuta

var. silesica

Cymbella si

nuat

aDiatoma

ance

psDiatoma

hiemale

var.

me

sodo

nDiatoma

tenu

e var. elongation

Diatoma

vulg

are

Diploneis

sp.

Epit

hemi

a so

rex

Eunotia

sp.

Fragilar

ia capucina

Fragilaria cr

oton

ensi

sFragilar

ia p

innata


Gomp

honema angustatum

Gyro

sigma

spencerii

Hannaea

arcu

sHannaea

arcu

s var. amphioxys

Hann

aea

arcu

s va

r. ar

cus


Meridion c

ircu

lare

Navi

cula

ar

vens

isNa

vicu

la capitata

Navi

cula

cryptocephala

Navi

cula

cryptocephala

var.

vene

taNa

vicu

la gastrum

Navicula h

eufi

eri

Navi

cula

la

nceo

lata

Navi

cula

luzonensis

Navi

cula

men

iscu

lus

var.

up

sali

ensi

sNa

vicu

la m

inima

Navi

cula

min

uscu

laNa

vicu

la mut

ica

Navi

cula

notha

Navi

cula

pel

lico

saNa

vicu

la p

upula

Navi

cula

ra

dios

aNa

vicu

la ra

dios

a var. teneJJa

230

20.9

575.7

230

20.9

110

11.0

281.2

575.

7

Tabl

e 15.--raxa, number

s , an

d pe

rcen

t co

mpos

itio

n of

phytoplankton a

t si

tes

1 an

d 2

in Kenne

y Reservoir, wa

ter years

1985

-87-

-Con

tinued

rmvTTTM

Kenn

ey Reservoir (s

ite

1)

Kenney Res

ervo

ir (s

ite

2)rniJLUn

z "r-

« 77! ?; rr

2-ft

Co

mpos

ite

2-ft

Composite

r

dep

th

(0-1

0 ft

) dep

th

(0-1

0 ft

) us

sP

ecie

s C

ell

s %

Com

p C

ell

s %

Com

p C

ell

s %

Com

p C

ell

s %

Com

p

BA

CIL

LAR

IOPH

YTA

(D

IATO

MS)

-C

on

tin

ued

A

pri

l 24

> 1986-C

onti

nued

PEN

NA

LE

S-- C

onti

nued

JV

avic

uIa

rhy

nco

cep

hal

a N

avi

cula

sa

Jbin

ian

s v

ar.

in

term

edia

N

avi

cula

ta

ntu

la

Na

vicu

la tr

ipuncta

ta

Navi

cula

vir

idula

N

avi

cula

vir

idula

var.

av

eam

e

--

--

--

--

--

570

51.8

Navi

cula

vir

idula

var.

av

enac

eaJV

avic

ula

sp.

28

1.2

Nitz

schi

a acicularis

Nitz

schi

a communis

14

1.0

Nitz

schi

a di

ssip

ata

Nitz

schi

a fi

lifo

rmis

Nitz

schi

a fr

ustu

lum

Nitz

schi

a ha

ntzs

chia

na

--

--

14

1.0

Nitz

schi

a hu

ngar

ica

Nitz

schi

a ignorata

Nitz

schi

a intermedia

Nitz

schi

a latens

Nitz

schi

a linearis

Nitz

schi

a longissima v

ar.

reversa

Nitz

schi

a mi

croc

epha

laNi

tzsc

hia

pale

aNi

tzsc

hia pa

leac

ea

--

--

14

1.0

Nitz

schi

a pusilla

Nitz

schi

a ro

mana

Nitz

schi

a th

erma

lis

Nitz

schi

a tr

ybli

onel

la v

ar.

debilis

Nitz

schi

a sp.

Pleu

rosi

gma

delicatalum

Rhoicosphenia

curvata

Rhop

alod

ia m

usculus

Suri

rell

a angustata

Surirella

ovalis

Suri

rell

a ov

ata

Syne

dra

acus

Syne

dra

deli

cati

ssim

aSy

nedr

a fa

scic

ulat

eSy

nedr

a mi

nusc

ula

Snye

dra

radiens

Syne

dra

rumpens

Syne

dra

rumpens

var.

familiar is

Syne

dra

ulna

Synedra

ulna va

r. contracta

Syne

dra

ulna var. danica

Syne

dra

ulna v

ar.

oxyr

hync

hus

Syne

dra

sp.

Thal

assi

osir

a fluviatilis

CHLO

ROPH

YTA

(GREEN A

LGAE)

Acti

nast

rum

hant

zsch

ii

Actinastrum

sp.


Anki

strode

smus

convolutus v.

acicularis

Ankistrodesmus fa

lcat

us

Ankistrodesmus fa

lcat

us va

r.acicularis

Ankistro

desmus fa

lcat

us va

r. mira

bili

s Carteria sp.

Chla

mydo

mona

s sp.

Chlorella

sp.

Chlo

roco

ccum

hum

icol

a Ch

loro

cocc

um sp.

Chlo

rogo

nium

spirale

Chlo

rogo

nium

sp.

Chod

atel

la quadriseta

Closteri

um sp.

Coccomyxa minor

Crucigenia qu

adra

ta

850

35.4

846.

00.

00.

0

85 283.5

1.2

282.

0

Table

15.-

-Tax

a, numbers, an

d percent

comp

osit

ion

of phytoplankton at

si

tes

1 an

d 2

in K

enney

Reservoir, wa

ter

year

s 1985-87 Continued

PHYLUM

ORDER

Genu

s spec

ies

Kenn

ey Reservoir (s

ite

1)Ke

nney

Reservoir (s

ite

2)2-

ft

depth

Comp

osit

e (0

-10

ft)

2-ft

depth

Comp

osit

e (0

-10

ft)

Cell

s % Co

mp

Cell

s % Co

mp

Cell

s % Comp

Cells

% Comp

ON

CHLO

ROPH

YTA

(GREEN A

LGAE)--Continued

Dict

yosp

haer

ium

ehrenbergianum

Di

ctyo

spha

eriu

m pu

lche

llum

Di

ctyo

sphaerium

sp.

Gloeocys

tis

sp.

Gole

nkinia ra

diat

a Go

lenk

inio

psis

so

lita

ria

Gonium sp.

Kirchneriella

contorta

Nesotaenium

sp.


Micr

atin

ium

sp.

Moug

eoti

a sp.

Oocy

tis

sp.

Pandorina mo

rum

Phac

otus

lenticularis

Phacotus sp

. Platymonas sp

. Pteromonas sp.

Scen

edes

mus

arma

tus

Scenedes

mus

biju

ga

Scen

edes

mus

dimorphus

Scen

edes

mus

quad

rica

uda

Scen

edes

mus

serratus

Scen

edes

mus

sp.

Schr

oede

ria

judayi

Schroederia

setigera

Selenastrum mi

nutu

m Sp

haer

ocys

tis

schr

oete

ri

Staurastrum

sp.

TreuJbaria sp

.

740

30.8

April

24,

1986--Continued

28

2.0

28

2.0

CHRY

SOPH

YTA

(GOL

DEN-

BROW

N ALGAE)

Dino

bryo

n divergens

Keph

yrio

n sp

iral

e Ke

phyr

ion

sp.

Mall

omonas

acaroides

Mall

omonas

ak

roko

nos

Mall

omonas

gl

obos

a Ma

llom

onas

sp.

Pleu

rosigm

a delicatulum

Pleu

rosigm

a sp.

Ochr

omonas

sp.

CYANOPHYTA (B

LUE-

GREE

N AL

GAE)

Anabaena sp.

Aphanocapsa

delicatissima

Aphanocapsa

sp.

Aphanothece

sp.

Chro

ococ

cus

dispersus

Chro

ococ

cus

limn

etic

us

Chro

ococ

cus

sp.

Dact

yloc

occo

psis

fascicularis

Da

ctyl

ococ

cops

is sp.

Lyngbya

limnetica

Lyngbya

nana

Ma

rsso

niel

la elegans


Oscillatoria an

gust

issi

ma


Osci

llat

oria

tenuis

Osci

llat

oria

sp.

Phormidium sp.

Syne

choc

occu

s li

near

e Sy

nech

ococ

cus

sigmoidea

Syne

chococ

cus

sigmoidea

f. mi

nor

Syne

chococ

cus

sp.

CRYPTOPHYTA

(CRY

PTOM

ONAD

S)

Chro

omon

as sp

. Cr

ypto

mona

s er

osa

Cryptomonas

marsonii

Cryp

tomo

nas

ovat

a

28

1.2

42

3.0

0 0.

0 0

0.0

28

1.2

14

1.0

28

2.0

28

1.2

0 0.0

800

80.0

0 0.0

28

1.2

230

23.0

570

57.0

110

4.6

85

3.5

14

1.0

0 0.

00

0.0

Tabl

e 15

.--T

axa,


comp

osit

ion

of phy

topl

ankt

on at

si

tes

1 and

2 in

Kenney

Reservoir, wa

ter

year

s 19

85-8

7--C

onti

nued

PHYL

UM

ORDER

Genu

s species

Kenn

ey R

eser

voir

(site

1)Ke

nney

Res

ervo

ir (site

2)2-ft

dept

hCo

mpos

ite

(0-10

ft)

2-ft

depth

Composite

(0-1

0 ft)

Cells

% C

omp

Cell

s % C

omp

Cells

% C

omp

Cells

% C

omp

oo

CRYP

TOPH

YTA

(CRY

PTOM

ONAD

S)--

Cont

inued

Cryptomo

nas

rostrata

Cryp

tomo

nas

rost

rati

form

is

Cryp

tomo

nas

sp.

Rhodomon

as mi

nuta

EUGLENOPHYTA (EUGLENOIDS)

Eugl

ena

acus

Euglena

viri

dis

Eugl

ena

sp.

Trachelomonas

sp.

PYRRHOPHYTA

(DINOFLAGELLATES)

Ceratium hir

undi

nell

a Gymnodinium

sp.

Peri

dinium biceps

Peridinium inconspicua

Peri

dinium sp

.

28 0

1.2

0.0

0.0

Apri

l 24

, 19

86--

Cont

inue

d

14

1.0

0 0.

00

0.0

0 0.0

0 0.0

0.0

0.0

Total

cell

s and

perc

ent

comp

osit

ion

Numb

er of

species

Dive

rsit

y in

dex

(DI)

at

species

leve

lBiomass

(mg/L

dry

weight)

Chlorophyll

a (|

Jg/L

)Chlorophyll

b (pg/L)

Chlorophyll

c (|

Jg/L

)

2,40

0 101

111.86 5.0

__ -- -_

__

1,40

0 103

111.

05 7.4

__ -- --

--

1,000

102

51.

77 1.4

__ -- --

1,100

100

41.

76 3.4

__ __ __

June

3, 1986

BACILLARIOPHYTA

(DIATOMS)

56

66.7

14

0 63

.6

320

100.

0 43

0 79.6

CENTRALES

0 0.0

0 0.0

85

26.6

57

10.6

Cyclotella bodanica

Cycl

otel

la ku

tzin

gian

aCy

clot

ella

meneghiniana

--

85

26.6

57

10.6

Cyclotella pseudostelligera

Cyclotella st

elli

gera

Me

losi

ra granulata

var.

an

gust

issi

ma

Melo

sira

italica

Melo

sira

lirata

Melo

sira

sp.

Rhiz

osol

enia

eriensis

Step

hano

disc

us alpinus

Step

hano

disc

us astrea

Step

hano

disc

us ni

agar

ae

Step

hano

disc

us tenuis

Stephanodi

scus

sp.

PENN

ALES

56

66.7

140

63.6

23

0 71.9

370

68.5

Achnanthes af

fini

s Achnanthes la

nceo

late

Achn

anth

es minutissima

28

33.3

28

12.7

Am

phor

a pe

rpus

illa

--

28

12.7

Amphora

vene

ta

Amph

ora

sp.

Asterionel

la formosa

--

--

--

--

--

--

170

31.5

Cocconeis

plac

entu

laCy

lind

roth

eca

grac

ilis

Cylindrotheca

sp.

Cymatopleura so

lea

Cymbella affinis

Cymb

ella

min

uta

Cymbella minuta f.

la

tens

--

28

5.2

Cymb

ella

min

uta

var.

silesica

Cymb

ella si

nuat

aDiatoma

ance

psDiatoma

hiem

ale

var.

me

sodo

n

Tabl

e I5.--Taxa, numbers, an

d pe

rcen

t composition

of phytoplankton at

si

tes

1 an

d 2

in Ken

ney

Reservoir, wa

ter

year

s 19

85-8

7--Continued

PHYLUM

ORDER

Genu

s sp

ecie

s

Kenney Reservoir

(sit

e 1)

Kenn

ey Re

serv

oir

(sit

e 2)

2-ft

depth

Composite

(0-1

0 ft

)2-

ft

depth

Composite

(0-1

0 ft)

Cell

s % Co

mp

Cell

s % Co

mp

Cell

s % Comp

Cell

s % Co

mp

BACILLARIOPH

YTA

(DIATOMS) Continued

PENN

ALES

--Co

ntin

ued

Diatoma

tenue

var.

el

onga

tum

Diatoma

vulg

are

Dipl

oneis

sp.

Epit

hemi

a so

rex

Eunotia

sp.

Fragilaria ca

puci

na

Fragilaria cr

oton

ensi

s Fragilaria pi

nnat

a Fragilar

ia vaucheriae


Gyro

sigma

spen

ceri

i Hannaea

areas

Hann

aea

arcu

s var. amphioxys

Hann

aea

arcus

var. ar

cus

Hantzsch

ia amphioxys

Meridion circulare

Navi

cula

arvensis

Navi

cula

ca

pita

ta

Navi

cula

cryptocephala

Navi

cula

cr

ypto

ceph

ala

var. ve

neta

. Na

vicu

la gastrum

Navi

cula h

eufi

eri

Navi

cula lanceolata

Navi

cula luzonensis

Navi

cula me

nisc

ulus

va

r. up

sali

ensi

s Na

vicu

la minima

Navi

cula

min

uscu

la

Navi

cula mu

tica

Na

vicu

la n

otha

June 3,

1986 Continued

57

17.8

28

12.7

288.

8

285.2

Navi

cula

pel

lico

saNa

vicu

la p

upula

Navi

cula

ra

dios

aNa

vicu

la radiosa

var.

tenella

Navi

cula

rhyncocephala

Navi

cula

sa

bini

ans

var.

intermedia

Navi

cula

tantula

Navi

cula

tr

ipun

ctat

aNa

vicu

la viridula

--

--

--

--

28

8.8

28

5.2

Navi

cula

viridula va

r. av

eame

Navi

cula viridula va

r. avenacea

Navi

cula

sp

.Ni

tzsc

hia

acicularis

--

--

--

85

26.6

Nitz

schia

communis

Nitz

schi

a dissipata

Nitz

schi

a fi

lifo

rmis

Nitz

schi

a frustulum

Nitz

schi

a ha

ntzs

chia

na

--

28

8.8

57

10.6

Nitz

schi

a hu

ngar

ica

Nitz

schi

a ig

nora

taNi

tzsc

hia

intermedia

28

33.3

57

25.9

Nitz

schi

a latens

Nitz

schi

a li

near

isNi

tzsc

hia

longissima va

r. reversa

Nitz

schi

a mi

croc

epha

laNi

tzsc

hia

pale

a --

--

--

--

28

5.2

Nitz

schi

a pa

leac

eaNi

tzsc

hia

pusi

lla

Nitz

schi

a ro

mana

Nitz

schi

a th

erma

lis

Nitz

schi

a tryblionella var. de

bili

sNi

tzsc

hia

sp.

Pleu

rosi

gma

delicatalum

Rhoicosphenia

curvata

Rhop

alod

ia m

usculus

Suri

rell

a angustata

Suri

rella

ovalis

Suri

rella

ovata

Syne

dra

acus

Syne

dra

deli

cati

ssim

a

Tabl

e 15

.--T

axa,


composition

of phy

topl

ankt

on at

si

tes

1 an

d 2

in K

enne

y Reservoir, water

year

s 19

85-8

7 Continued

PHYL

UM

ORDE

RGe

nus

species

Kenney Reservoir (s

ite

1)2-ft

Composite

depth

(0-10

ft)

___

Cell

s % Comp

Cell

s


2)2-ft

Composite

depth

(0-1

0 ft

)Co

mp

Cell

s % Co

mp

Cell

s % Comp

BACILLARIOPH

YTA

(DIA

TOMS

) Co

ntin

ued

PENN

ALES

--Co

ntin

ued

Syne

dra

fasc

icul

ate

Syne

dra

minu

scul

a Sn

yedr

a radiens

Syne

dra

rumpens

Syne

dra

rumpens

var.

familiaris

Syne

dra

ulna

Syne

dra

ulna v

ar.

contracta

Syne

dra

ulna v

ar.

dani

ca

Syne

dra

ulna v

ar.

oxyr

hync

hus

Syne

dra

sp.

Thal

assi

osir

a fluviatilis

CHLO

ROPH

YTA

(GREEN A

LGAE

) Actinastrum ha

ntzs

chii

Actinastrum

sp.



acicul

aris

Ankistrodesmus fa

lcat

us

Ankistrodesmus fa

lcat

us va

r.ac

icul

aris

Anki

stro

desm

us fa

lcat

us va

r. mirabilis

Carteria sp.

Chla

mydo

mona

s sp.

Chlo

rell

a sp.

Chlo

roco

ccum

hum

icol

a Ch

loro

cocc

um sp

. Ch

loro

goni

um s

pira

le

June

3, 19

86--

Cont

inue

d

285.2

2833.3

2812

.70.

011

0110

20.4

20.4

2833

.3

2812

.7

Chlo

rogo

nium

sp.

Chodatella

quadriseta

Closterium sp

. Coccomyxa

minor

Crucigenia quadrata

Dict

yosp

haer

ium

ehrenbergianum


Dict

yosphaerium

sp.

Gloeocysti

s sp.

Golenkinia

radiata

Gole

nkin

iops

is solitaria

Goni

um sp.

Kirchneriella

cont

orta

Mesotaenium

sp.


Micratinium

sp.

Moug

eoti

a sp.

Oocy

tis

sp.

Pandorina

moru

m Phacotus lenticularis

Phacotus sp.

Platymon

as sp

. Pteromonas sp.

Scenedes

mus

armatus

Scenedes

mus

biju

ga

Scenedes

mus

dimorphus

Scenedes

mus

quad

rica

uda

Scenedesmu

s serratus

Scen

edes

mus

sp.

Schr

oede

ria

juda

yi

Schr

oede

ria

setigera

Selenastrum mi

nutu

m Sp

haer

ocys

tis

schroeteri

Staurastrum

sp.

Treubaria

sp.

Tabl

e 15.--raxa, nu

mber

s, and pe

rcen

t co

mpos

itio

n of

phytoplan

kton

at

sites

1 and

2 in K

enne

y Reservoir, wa

ter

years

1985

-87-

-Continued

PHYLUM

ORDER

Genus

spec

ies

Kenn

ey Reservoir (s

ite

1)Ke

nney

Reservoir

(sit

e 2)

2-ft

Composite

2-ft

Composite

depth

(0-1

0 ft)

depth

(0-1

0 ft

)Cells

% Co

mp

Cell

s % Co

mp

Cell

s % Comp

Cells

% Co

mp

CHRY

SOPH

YTA

(GOLDEN-BROWN

ALGAE)

Dino

bryo

n divergens

Keph

yrio

n sp

iral

e Ke

phyr

ion

sp.



Mallomonas gl

obos

a Mallomonas sp.

Pleurosigma

deli

catu

lum

Pleurosigma

sp.

Ochromonas sp.

CYAN

OPHY

TA (B

LUE-

GREE

N AL

GAE)

Anabaena sp

.Aphanocapsa

delicatissima

Aphanoca

psa

sp.

Aphanoth

ece

sp.

Chro

ococ

cus

dispersus

Chro

ococ

cus

limneticus

Chro

ococ

cus

sp.

Dactyloc


Dactyloc

occopsis sp.

Lyngbya

limn

etic

a Lyngbya

nana



Oscillatoria an

gust

issi

ma

Osci

llat

oria

limnetica

Oscillatoria tenuis

Osci

llat

oria

sp.

0.0

June

3, 1986--Continued

0 0.0

0 0.

00.0

0.0

5725

.90.

00.0

Phormidi

um sp.

Synechococcus

lineare

--

57

25.9

Syne

choc

occu

s sigmoidea

Syne

choc

occu

s sigmoidea

f. mi

nor

Synechococcus

sp.

CRYP

TOPH

YTA

(CRYPTOMONADS)

0 0.

0 0

0.0

0 0.

0 0

0.0

Chroomonas sp.

Cryp

tomo

nas

eros

a Cr

ypto

mona

s marsonii

Cryp

tomo

nas

ovat

a Cr

ypto

mona

s rostrata

Cryp

tomo

nas

rost

rati

form

is

Cryptomo

nas

sp.

Rhodomonas mi

nuta

EUGLENOPHYTA (E

UGLE

NOID

S)

0 0.0

0 0.

0 0

0.0

0 0.

0 Eu

glen

a ac

us

Eugl

ena

viri

dis

EugJ

ena

sp.

Trachelomonas

sp.

PYRR

HOPH

YTA

(DIN

OFLA

GELL

ATES

) 0

0.0

0 0.

0 0

0.0

0 0.0

Cera

tium

hirundinella

Gymnodin

ium

sp.

Peridinium bic

eps

Peridini

um in

cons

picu

a Peridini

um sp.

Tota

l ce

lls

and

perc

ent

comp

osit

ion

84

100

220

102

320

100

540

100

Number of

species

3 6

6

9Diversity index

(DI) at species

leve

l 1.58

--

2.50

--

2.41

--

2.80

Biomass (mg/

L dry

weight)

14.7

10.6

9.4

25.8

Chlorophyll a

(|Jg/L)

Chlorophyll b (p

g/L)

Chlorophyll c

(|Jg/L)

Tabl

e 15

.--T

axa,


comp

osit

ion

of phy

topl

ankt

on at si

tes

1 and

2 in Ke

nney

Res

ervo

ir,

water

year


PHYLUM

ORDER

Genu

s species

BACI

LLAR

IOPH

YTA

(DIA

TOMS

)CE

NTRA

LES

Cyclotella bo

dani

caCy

clot

ella

kutzingiana

Cycl

otel

la m

eneghiniana

Cycl

otel

la p

seud

oste

llig

era

Cycl

otel

la st

elli

gera

Melo

sira

gra

nula

ta v

ar.

angu

stis

sima

Melo

sira

italica

Melo

sira

lirata

Melo

sira

sp.


Step

hano

disc

us alpinus

Step

hano

disc

us as

trea

Step

hano

disc

us ni

agar

aeSt

epha

nodi

scus

te

nuis

Step

hano

disc

us sp.

Kenn

ey Reservoir

(sit

e 1)

2-ft

dept

hCe

lls

% Comp

310

14.8

110

5.4

__ __ 85

4.0

__ -- __ __ __ __ __ __ __ 28

1.3

__ --

Comp

osit

e (0

-10

ft)

Cell

s % Comp

June

24

,

260

14.4

57

3.2

-- -- 57

3.2

-- -- -- _- _- -- -- __ -- -- --

Kenney Re

serv

oir

(sit

e 2)

2-ft

depth

Cell

s

1986 350 99 -- -- 85 -- 14 -- -- -- -- -- -- -- -- -- --

% Co

mp

92.1

26.1 -- --

22.4 -- 3.7

-- -- -- -- -- -- -- -- -- --

Comp

osit

e (0

-10

ft)

Cell

s

550

128 -- -- 43 -- -- -- -- 85 -- -- -- -- -- -- --

% Co

mp

94.8

22.1 -- -- 7.4

-- -- -- -- 14.7 -- -- -- -- -- -- --

PENN

ALES

Achnanthes affinis

Achn

anth

es lanceolata

Achn

anth

es minutissima

Amphora

perpusilla

Amph

ora

veneta

Amphora

sp.

Asterionella fo

rmos

a Cocconeis

plac

entu

la

Cylindrotheca

grac

ilis

Cy

lind

roth

eca

sp.

Cymatopleura so

lea

200

9.5

200 57 28

11.1

3.2

1.6

250 14

65.8

3.7

420 14

72.4 2.4

Cymbella affinis

Cymbella m

inuta

Cymbella m

inuta

f. la

tens

Cywbella m

inut

a va

n. silesica

Cymbella sinuata

Diat

oma

ance

psDi

atom

a hiemale

var.

mesodon

Diat

oma

tenu

e va

r. elongation

Diat

oma

vulg

are

Diploneis

sp.

Epit

hemi

a so

rex

Euno

tia

sp.

Fragilaria ca

puci

naFragilaria cr

oton

ensi

sFragilaria p

inna

taFr

agil

aria

va

uche

riae


Gyrosigma

spencerii

Hann

aea

arcu

sHa

nnae

a arcus

var.

am

phio

xys

Hann

aea

arcus

var.

arcus

Hantzschia am

phio

xys

Meri

dion

circulare

Navi

cula arvensis

Navi

cula capitata

Navi

cula cr

ypto

ceph

ala

Navi

cula cr

ypto

ceph

ala

var. veneta

Navi

cula gastrum

Navi

cula

heu

fler

iNa

vicu

la la

nceo

lata

Navi

cula

lu

zone

nsis

Navi

cula

menisculus va

r. up

saliensis

Navi

cula

minima

Navi

cula

min

uscu

laNa

vicu

la mu

tica

Navi

cula no

tha

Navi

cula

pel

lico

saNa

vicu

la p

upul

aNa

vicu

la ra

dios

aNa

vicu

la ra

dios

a va

r. te

nell

a

281.3

14 14

3.7

3.7

260

44.8

14 14 14

3.7

3.7

3.7

14 14

2.4

2.4

Tabl

e 15.--ra.xa/

numb

ers,

and percent

comp

osit

ion

of phy

topl

ankt

on at

si

tes

1 an

d 2

in Kenney

Reservoir, water

year

s 1985-87-

-Conti

nued

.

PHYLUM

ORDER

Genus

species

Kenn

ey Reservoir

(sit

e 1)

2-ft

depth

Cell

s % Co

mp

Comp

osit

e (0

-10

ft)

Cell

s % Comp

Kenn

ey Reservoir

(sit

e 2)

2-ft

depth

Cell

s % Comp

Composite

(0-1

0 ft)

Cell

s % Co

mp

BACI

LLAR

IOPH

YTA

(DIATOMS)-Continued

June

24

' 1986-Continued

PENNALES--

Cont

inue

d Navicula rhyncocephala

Wavi

qula

saMnians var. in

termedia

Wavicula tantula

Navi

cula

tr

ipun

ctat

a Wavicula vi

ridu

la

Navicula vi

ridu

la va

r. av

eame

Navi

cula

viridula v

ar.

avenacea

--

--

14

3.7

28

4.8

Navi

cula

sp.

Nitz

schi

a acicularis

m

Nitz

schi

a co

mmun

is00

Nitz

schi

a di

ssip

ata

Nitz

schi

a filiformis

Nitz

schi

a frustulum

Nitz

schi

a ha

ntzs

chia

na

57

2.7

57

3.2

57

15.0

28

4.8

Nitz

schi

a hu

ngar

ica

Nitz

schi

a ig

nora

ta

--

--

--

--

--

14

2.4

Nitz

schi

a intermedia

28

1.3

57

3.2

28

7.4

28

4.8

Nitz

schi

a la

tens

Nitz

schi

a linearis

Nitz

schi

a longissima v

ar.

reversa

Nitz

schi

a mi

croc

epha

laNi

tzsc

hia

pale

a 28

1.3

~

~

14

3.7

Nitz

schi

a pa

leac

eaNi

tzsc

hia

pusilla

Nitz

schi

a ro

mana

--

--

14

3.7

14

2.4

Nitz

schi

a th

erma

lis

Nitz

schi

a tr

ybli

onel

la v

ar.

debi

lis

Nitz

schi

a sp.

--

--

--

--

14

3.7

Pleu

rosi

gma

deli

cata

lum

Rhoi

cosp

heni

a curvata

Rhopalodia mu

scul

usSurirella

angustata

Surirella

oval

isSu

rire

lla

ovat

a

-

14

3.7

14

2.4

Syne

dra

acus

Synedra

deli

cati

ssim

aSy

nedr

a fa

scic

ulat

eSy

nedr

a mi

nusc

ula

Snye

dra

radiens

Syne

dra

rumpens

Syne

dra

rump

ens

var.

familiaris

Syne

dra

ulna

Syne

dra

ulna

var

. contracta

Syne

dra

ulna

va

r. danica

Syne

dra

ulna v

ar.

oxyr

hync

hus

57

2.7

14

3.7

Syne

dra

sp.

Thal

assi

osir

a fl

uvia

tili

s

CHLO

ROPH

YTA

(GREEN A

LGAE)

1,700

81.0

1,500

83.3

0

0.0

28

4.8

Actinast

rum ha

ntzs

chii

Actinast

rum

sp.

Anki

strode

smus

co

nvol

utus

An

kist

rodesm

us co

nvol

utus

v.

acicularis

Anki

stro

desm

us fa

lcat

us

Ankistrodesmus falcatus var.

acicularis

Ankistrodesmus fa

lcat

us var. mi

rabi

lis

Carteria sp

.Ch

lamy

domo

nas

sp.

110

5.2

57

3.2

Chlorella

sp.

Chlo

roco

ccum

hum

icol

a Chlorococcum sp.

Chlo

rogo

nium

spi

rale

Ch

loro

goni

um sp.

Chod

atella

quadriseta

Closterium sp

. Coccomyxa mi

nor

Crucigenia

qu

adra

ta

Tabl


composition

of p

hytoplanJfcton at

sites

1 an

d 2

in Ken

ney

Rese

rvoi

r , wa

ter

year

s 19

85-8

7- -Contin

ued

PHYLUM

f\DT^T?'D

\JS\jJ S^

S\.

Genu

s species

Kenney R

eser

voir

(s

ite

1)2-

ft

Composite

dept

h (0

-10

ft)

Cells

% C

omp

Cells

% Co

mp

Kenney R

eser

voir

(s

ite

2)2-

ft

Composite

depth

(0-1

0 ft)

Cells

% C

omp

Cells

% C

omp

CHLOROPHYTA

(GREEN A

LGAE) --

Cont

inue

d Di

ctyo

sphaerium

ehre

nJbe

rgia

num

Dict

yosp

haer

ium pulchellum

Dictyosphaerium

sp.

Gloe

ocys

tis

sp.

GoJenJtinia

radiata

GoJe

nkin

iops

is so

Jita

ria

Goni

um sp.

Kirchneriella

cont

orta

Wesotaeniian s

p.

Wicr

atin

iian pus

illu

m Wi

crat

iniu

m sp.

Moug

eotia

sp.

Oocytis

sp.

Pandorina

morum

Phacotus Jenticularis

Phacotus sp.

PJatymonas sp.

Pteromonas sp.

Scen

edes

mus

arma

tus

Scenedes

mus

bijuga

Scen

edes

mus

dimorphus

Scen

edes

mus

quadricauda

Scen

edes

mus

serratus

Scen

edes

mus

sp.

Schr

oede

ria

judayi

Schroede

ria

seti

gera

SeJenastrum mi

nutu

m Sp

haer

ocys

tis

schroeteri

Staurast

rum

sp.

Treubaria

sp.

June

1986-Continued

284.8

1,60

076.2

1,40

077.8

CHRY

SOPH

YTA

(GOL

DEN-

BROW

N ALGAE)

Dino

bryo

n divergens

Keph

yrio

n sp

iral

e Ke

phyr

ion

sp.


Mall

omon

as ak

roko

nos

Mallomonas gl

obos

a Ma

llom

onas

sp.

Pleurosigma

delicatulum

Pleu

rosi

gma

sp.

Ochromonas sp.

CYAN

OPHY

TA (BLUE-GREEN

ALGA

E)

Ana&aena sp

.Ap

hano

caps

a delicatissima

Aphanocapsa

sp.

Aphanothece

sp.

Chro

ococ

cus

dispersus

Chroococ

cus

limneticus

Chro

ococ

cus

sp.

Dact

yloc

occo

psis

fascicularis


Lyngbya

limnetica

Lyng

bya

nana


Osci

llat

oria

an

gust

a Oscillatoria an

gust

issi

ma

Oscillatoria li

mnet

ica

Oscillatoria te

nuis

Oscillatoria sp.

Phormidium sp

. Sy

nech

ococ

cus

lineare

Syne

choc

occu

s sigmoidea

Syne

choc

occu

s sigmoidea

f. mino

r Sy

nech

ococ

cus

sp.

CRYP

TOPH

YTA

(CRYPTOMONADS)

Chroomonas sp.

Cryptomo

nas

eros

a Cryptomo

nas

mars

onii

Cr

ypto

mona

s ov

ata

0.0

0.0

0.0

0.0

0.0

0.0

143.7

0.0

143.7

572.

70.0

143.

70.0

Tabl

e 15. Taxa,

numb

ers,

and percent

composition

of p

hi/toplankto

n at

sites

1 an

d 2

in K

enney

Reservoir, water

years

19S5-S7 Continued

PHYLUM

ORDER

Genu

s species

Kenney Reservoir

(sit

e 1)

Kenney Reservoir

(sit

e 2)

2-ft

Composite

2-ft

Comp

osit

edepth

(0-1

0 ft

) depth

(0-1

0 ft

)Ce

lls

% Co

mp

Cell

s % Co

mp

Cell

s % Co

mp

Cells

% Co

mp

CRYP

TOPH

YTA

(CRY

PTOM

ONAD

S) C

ontinu

ed

Cryp

tomo

nas

rostrata

Cryp

tomo

nas

rost

rati

form

is

Cryp

tomo

nas

sp.

Rhodomonas minuta

EUGLENOPHYTA

(E

UGLE

NOID

S)

Euglena

acus

Euglena

viri

dis

Euglena

sp.

Trache1o

mona

s sp.

PYRR

HOPH

YTA

(DIN

OFLA

GELL

ATES

) Ce

rati

um hirundinella

Gymnodinium

sp.

Peridiniim biceps

Peridini

im in

cons

picu

a Peridini

im sp.

57

0

2.7

0.0

0.0

June 24,

1986 Continued

14

0.0

3.7

0.0

0.0

0.0

0.0

0.0

Total

cell

s an

d pe

rcen

t co

mpos

itio

n

Number of species

Diversity

inde

x (D

I) at species

leve

lBiomass

(mg/

L dry

weight)

Chlorophyll

a (pg/D

Chlorophyll

b (|

Jg/L

)Ch

loro

phyl

l c

(|Jg/L)

2,10

0 98

10 1.48 7.8

-- --

--

1,80

0 98

71.17

11.5 -- --

--

380

99

183.

8012.2 _- --

580 13

2.83

18.0 -- --

100 __ -- -- --

July

22,

1986

BACI

LLAR

IOPH

YTA

(DIA

TOMS

) 3,500

44.9

5,300

35.3

960

38.4

1,20

0 31

.6

CENTRALES

3,40

0 43

.6

5,100

34.0

88

0 35

.2

950

25.0

Cy

clot

ella

bo

dani

ca

Cycl

etel

la ku

tzin

gian

a Cy

clot

ella

me

negh

inia

naCyclotella ps

eudo

stel

lige

ra

3,200

41.0

4,40

0 29

.3

710

28.4

730

19.2

Cyclotella stelligera

Melo

sira gr

anul

ata

var.

an

gust

issi

ma

Melo

sira it

alic

aMe

losi

ra li

rata

11

0.

1 Me

losi

ra sp.

Rhiz

osol

enia

eriensis

Step

hanodi

scus

alpinus

Step

hanodi

scus

astrea

Stephanodiscus ni

agar

ae

--

--

--

--

110

2.9

Stephanodiscus te

nuis

14

0 1.

8 710

4.7

170

6.8

110

2.9

Stephanodiscus sp

.

PENN

ALES

14

0 1.

8 200

1.3

85

3.4

250

6.6

Achnanthes af

fini

sAchnanthes lanceolata

--

28

0.7

Achn

anth

es minutissima

Amph

ora

perpusilla

Amphora

vene

ta

Amph

ora

sp.


Cocconeis

plac

entu

la

Cylindrotheca

gracilis

Cylindrotheca

sp.

Cymatopleura solea

Cymbella af

fini

s Cymbella m

inuta

Cymbella m

inuta

f. la

tens

Cymbella m

inut

a var. si

lesi

ca

Cymbella sinuata

Diat

oma

ance

ps

Diat

oma

hiemale

var. mesodon

Table

l5.--Taxa, nu

mber

s, and percent

comp

osit

ion

of phytoplankt

on at

sites

1 an

d 2

in Kenney

Reservoir, water

year

s 19

85-8

7--Conti

nued

PHVT

TTM

Kenn

ey Reservoir

(sit

e 1)

Ke

nney

Reservoir (s

ite

2)ORDFR

2-ft

Co

mpos

ite

2-ft

Composite

UK}JJ

J|K

. de

pth

(0-1

0 ft)

dept

h (0

-10

ft)

us sP

ecie

s Ce

lls

% Co

mp

Cell

s % Co

mp

Cells

% Co

mp

Cells

% Co

mp

BACILLARIOPHYTA


Jul?

22> 1986-Continued

PENNALES--Continued

Diatoma

tenue

var.

el

onga

tum

Diatoma

vulg

are

Diplonei

s sp

. --

--

28

0.2

Epit

hemia

sore

xEunotia

sp.

Frag

ilaria

capucina

Fragilaria cr

oton

ensi

sFragilaria p

inna

taFragilaria va

uche

riae


Gyrosigma

spencerii

Hann

aea

arcus

Hann

aea

arcus

var. am

phio

xys

Hann

aea

arcus

var.

ar

cus


--

--

--

--

--

--

28

0.7

Meridion c

irculare

Navi

cula

arvensis

Navi

cula

capitata

Navi

cula

cr

ypto

ceph

ala

Navi

cula

cr

ypto

ceph

ala

var. ve

neta

Navi

cula

ga

stru

mNa

vicu

la heufleri

Navi

cula

lanceolata

Navi

cula

luzonensis

Navi

cula

menisculus

var. up

sali

ensi

sNa

vicu

la mi

nima

Navi

cula

minuscula

85

1.1

14

0.1

--

--

28

0.7

Navi

cula

mu

tica

Na

vicu

la n

otha

ON

Navi

cula

pel

lico

saNa

vicu

la pu

pula

Navi

cula

radios a

Navi

cula

ra

dios

a var. te

nell

aNa

vicu

la rh

ynco

ceph

ala

Navicula sabinians

var.

intermedia

Navi

cula

ta

ntul

aNa

vicu

la tr

ipun

ctat

aNa

vicu

la viridula

Navi

cula

vi

ridu

la v

ar.

avea

meNa

vicu

la viridula v

ar.

aven

acea

Navi

cula

sp.

Nitz

schi

a acicularis

Nitz

schi

a communis

Nitz

schi

a di

ssip

ata

Nitz

schi

a fi

lifo

rmis

Nitz

schi

a frustulum

Nitz

schi

a ha

ntzs

chia

naNi

tzsc

hia

hung

aric

aNi

tzsc

hia

igno

rata

Nitz

schi

a intermedia

Nitz

schi

a latens

Nitz

schi

a li

near

isNi

tzsc

hia

longissima v

ar.

reversa

Nitz

schi

a mi

croc

epha

laNi

tzsc

hia

pale

aNi

tzsc

hia

pale

acea

Nitz

schi

a pusilla

Nitz

schi

a romana

Nitz

schi

a th

erma

l is

Nitz

schi

a tr

ybli

onel

la v

ar.

debi

lis

Nitz

schi

a sp

.PI

eurosigma delicatalum

Rhoicosphenia

curv

ata

Rhop

alodia

musculus

Suri

rell

a angustata

Suri

rell

a ov

al is

Suri

rell

a ovata

Syne

dra

acus

Syne

dra

delicatissima

571.5

570.

785 14

0.6

0.1

28

0.7

28

0.7

280.7

280.2

853.4

28

0.7

Tabl

e 15

.--T

axa,

nu

mber

s, and pe

rcen

t co

mpos

itio

n of

phy

topl

ankt

on at

sites

2 and

2 in

Kenney R

eservoir,

water

year

s 19

85-8

7--C

ontinu

ed

PHYLUM

ORDER

Genus

spec

ies

Kenn

ey Reservoir

(sit

e 1)

Kenney Reservoir

(sit

e 2)

2-ft

depth

Composite

(0-1

0 ft)

2-ft

depth

Composite

(0-1

0 ft)

Cell

s % Co

mp

Cells

% Comp

Cells

% Comp

Cells

% Comp

BACILLARIOPH

YTA

(DIATOMS) Continued

PENN

ALES

--Co

ntin

ued

Syne

dra

fasc

icul

ate

Synedra

minu

scul

a Sn

yedr

a radiens

Syne

dra

rumpens

Syne

dra

rump

ens

var.

fa

mili

aris

Sy

nedr

a ulna

Syne

dra

ulna v

ar.

contracta

Syne

dra

ulna v

ar.

dani

ca

Syne

dra

ulna v

ar.

oxyrhynchus

Syne

dra

sp.

Thal

assi

osir

a fluviatilis

CHLO

ROPH

YTA

(GREEN A

LGAE

) Ac

tina

stru

m hantzschii

Acti

nast

rum

sp.



acicul

aris

An£i

stro

desm

us fa

lcat

us

Anki

stro

desmus falcatus va

r.acicul

aris

An

/ris

trodesmus

faJcatus var.

mira

bili

s Carteria sp.

Chla

mydo

mona

s sp.

Chlo

rell

a sp.

Chlo

roco

ccum

hum

icol

a Ch

loro

cocc

um sp.

Chlo

rogo

nium

spi

rale

July

22

, 19

86--

Cont

inue

d

280.

2

2,900

37.2

6,300

42.0

740

9.5

170

1.1

-- 85 280 85

-- 1.1

3.6

1.1

28 110

110

140

110

0.2

0.7

0.7

0.9

0.7

1,20

0 48

.0

1,70

0 44.7

280 28

170

6.8

28 57 110 28

430

7.4

0.7

0.7

1.5

2.9

0.7

11.3

280.2

Chlo

rogo

nium

sp

. Ch

odat

ella

quadriseta

Closterium sp.

Coccomyxa

mino


Dict

yosp

haer

ium

ehrenbergianum

Di

ctyo

sphaerium pulchellum

Dict

yosphaerium

sp.

Gloeocys

tis

sp.

Gole

nkinia

radiata

Golenkin

iops

is solitaria

Gonium sp.

Kirchneriella

contorta

Meso

taen

ium

sp.

Micr

atin

ium pusillum

Micratinium

sp.

Moug

eoti

a sp.

Oocy

tis

sp.

Pand

orin

a mo

rum


Phacotus sp.

Platymonas sp.

Pteromonas sp.

Scen

edes

mus

armatus

Scen

edes

mus

biju

ga

Scenedesmu

s dimorphus

Scen

edes

mus

quad

rica

uda

Scen

edes

mus

serr

atus

Sc

ened

esmu

s sp.

Schr

oede

ria

judayi

Schr

oede

ria

seti

gera

Selenastrum mi

nutu

m Sp

haer

ocys

tis

schroeteri

Staurastrum

sp.

TreiLbaria sp.

110

0.7

200

1.3

650

4.3

28

0.2

1,60

0 20

.5

3,500

23.3

28

0.2

910

6.1

110

1.4

230

9.2

28

0.7

170

4.5

28

0.7

800

32.0

450

11.8

28

1.1

85

2.2

170

1.1

Tabl

e 15.--raxa, numbers, and percent

comp

osit

ion

of p

hyto

plan

kton

at

sites

1 an

d 2

in K

enney

Reservoir, water

years

1985

-87-

-Continued

PHYLUM

ORDER

Genu

s sp

ecie

s

Kenn

ey Reservoir

(sit

e 1)

Kenn

ey Re

serv

oir

(sit

e 2)

2-ft

depth

Composite

(0-1

0 ft)

2-ft

dept

hComposite

(0-1

0 ft)

Cell

s % Co

mp

Cells

% Co

mp

Cell

s % Comp

Cell

s % Co

mp

ON

00

CHRY

SOPH

YTA

(GOL

DEN-

BROW

N ALGAE)

Dino

bryo

n divergens

Keph

yrio

n sp

iral

e Ke

phyr

ion

sp.

Mallomonas ac

aroi

des

Mall

omon

as ak

roko

nos

Mallomonas gl

obos

a Mallomonas sp.

Pleurosigma

delicatulum

Pleurosigma

sp.

Ochr

omon

as sp.

CYANOPHYTA (B

LUE-

GREE

N AL

GAE)

Anabaena sp

.Aphanocapsa

delicatissima

Aphanocapsa

sp.

Aphanothece

sp.

Chro

ococ

cus

dispersus

Chroococ

cus

limn

etic

us

Chro

ococ

cus

sp.


Dact

yloc

occo

psis

sp

. Ly

ngby

a limnetica

Lyng

bya

nana

Ma

rsso

niel

la elegans

Osci

llat

oria

angusta

Osci

llat

oria

an

gust

issi

ma

Osci

llat

oria

limnetica

Osci

llat

oria

te

nuis

Os

cill

ator

ia sp

.

85 85 620 85

1.1

1.1

1,10

0 14.1 7.9

1.1

July

22

, 19

86--

Cont

inue

d

85

0.6

0 0.

0

57 340

510

0.4

2.3

3.4

281.

1

280

11.2

57 230

290

0.0

3

28

,700 110

620

910 57

0.

24. 0. 4.

6.

0.

2 7 7 1 1 4

-- 310

12.4

810

230

_-

--

21.3 6.1

-- 1.5

6.1

7.6

Phor

midi

um sp.

Synechococcus

lineare

Synechococcus

sigmoidea

430

5.5

170

1.1

Syne

choc

occu

s si

gmoi

dea

f. mi

nor

830

5.5

Syne

choc

occu

s sp.

110

0.7

CRYP

TOPH

YTA

(CRY

PTOM

ONAD

S)

110

1.4

28

0.2

28

1.1

28

0.7

Chroomonas sp

. Cr

ypto

mona

s er

osa

Cryp

tomo

nas

mars

onii

--

28

0.2

28

1.1

28

0.7

Cryp

tomo

nas

ovat

a Cr

ypto

mona

s rostrata

Cryp

tomo

nas

rostratiformis

Cryp

tomo

nas

sp.

28

0.4

Rhodomon

as mi

nuta

85

1.

1

EUGLENOPHYTA (E

UGLE

NOID

S)

0 0.

0 28

0.2

0 0.

0 0

0.0

Euglena

acus

28

0.2

Euglena

viridis

Euglena

sp.

--

57

0.6

rrachelo

mona

s sp.

PYRR

HOPH

YTA

(DINOFLAGELLATES)

85

1.1

0 0.0

0 0.

0 28

0.

7 Ceratium

hir

undi

nell

a Gymnodin

ium

sp.

Peridini

um bic

eps

Peridini

um i

nconspicua

Peridini

um sp.

Total

cell

s and

percent

composition

Number of

sp

ecie

sDi

vers

ity

inde

x (D

I) at

sp

ecie

s le

vel

Biomass

(mg/

L dry

weig

ht)

Chlorophyll

a (|

Jg/L

)Ch

loro

phyl

l b

(|Jg

/L)

Chlo

roph

yll

c (|

Jg/L

)

85

1.1

7,80

0 10

0

182.79 1.2

5.3

2.1

10.9

__

15,000

103

363.

54 0.8

5.7

1.8

1.6

__

2,50

0 10

0

102.61

21.8 __ --

--

--

3,800 29

4.01

12.4 3.7

2.9

2.0

--

99

__ -- -- -- --

Tabl

e 15

.--T

axa,

nu

mber

s, and pe

rcen

t co

mpos

itio

n of

phytoplankton at

sit

es 1

and

2 in

Kenney

Reservoir, wa

ter

years

1985

-87-

-Con

tinu

ed

PHYLUM

ORDER

Genu

s sp

ecie

s

Kenn

ey Reservoir

(sit

e 1)

2-ft

depth

Cell

s % Co

mp

Composite

(0-1

0 ft)

Cell

s % Co

mp

Kenn

ey Reservoir

(sit

e 2)

2-ft

depth

Cell

s % Co

mp

Composite

(0-1

0 ft)

Cell

s % Comp

BACI

LLAR

IOPH

YTA

(DIA

TOMS

) CENTRALES

Cycl

otel

la bo

dani

caCy

clot

ella

kutzingiana

Cyclotella meneghiniana

Cyclotella pseudostelligera

Cycl

otel

la stelligera

Melosira granulata

var.

angustissima

Melo

sira

italica

Melo

sira

lirata

Melo

sira

sp.


Step

hano

dlsc

us a-

Zpin

usStephanodlscus as

trea

Stephanodlscus ni

agar

aeStephanodlscus tenuis

Stephanodlscus sp.

PENN

ALES

Achn

anth

es affinis

Achn

anth

es lanceolata


Amph

ora

perp

usil

la

Amphora

veneta

Amphora

sp.


Cocconeis

placentula

Cylindrotheca

gracilis

Cylindrotheca

sp.

Cymatopleura so

lea

400

400 19 38 340

25.0

25.0 1.2

2.4

21.3 0.0

August 20,

1986

340

310 14

300

21.3

19.4 0.9

18.8

340 28 28

91.9

7.6

7.6

870

110

110

58.0

7.3

7.3

281.8

310

83.8

760 57

50.7 3.8

Cymbella affinis

Cymbella m

inut

aCymbella mi

nuta

f. latens

Cymbella m

inut

a va

r. silesica

Cymb

ella

si

nuat

aDiatoma

anceps

Diatoma

hiemale

var.

mesodon

Diatoma

tenue

var.

elongation

Diatoma

vulg

are

Dipl

oneis

sp.

Epit

hemi

a so

rex

Eunotia

sp.

Fragilaria ca

puci

naFragilaria cr

oton

ensi

sFragilaria pinnata

Fragilar

ia va

uche

riae


Gyrosigma

spencerii

Hannaea

arcus

Hannaea

arcus

var.

amphioxys

Hannaea

arcus

var.

arcus

Hantzsch

ia amphioxys

Meri

dion

circulare

Navi

cula

arvensis

Navi

cula

ca

pita

taNa

vicu

la cr

ypto

ceph

ala

Navi

cula

cr

ypto

ceph

ala

var.

ve

neta

Navi

cula

gastrum

Navi

cula

heufieri

Navi

cula

la

nceo

lata

Navi

cula

luzonensis

Navi

cula

men

iscu

lus

var.

up

sali

ensi

sNa

vicu

la m

inim

aNa

vicu

la mi

nusc

ula

Navi

cula

mu

tica

Navi

cula

not

haNa

vicu

la p

elli

cosa

Navi

cula

pup

ula

Navi

cula

radiosa

Navi

cula

ra

dios

a va

r. tenella

140

37.8

573.

8

2814

0.9

143.

7

28 14

28 28

7.6

7.6

57 57 28

1.9

280

18.7 1.9

2.4

3.8

3.8

1.9

Table

15.--raxa, numbers, and percent

composition

of phytoplankt

on at

si

tes

1 and

2 in

Kenney

Reservoir/ wa

ter

year

s 19

85-8

7 Continued

PHYLUM

ORDER

Genu

s species

Kenn

ey Reservoir

(sit

e 1)

Kenn

ey Re

serv

oir

(sit

e 2)

2-ft

depth

Composite

(0-1

0 ft)

2-ft

depth

Composite

(0-1

0 ft

)Cells

% Co

mp

Cell

s % Co

mp

Cell

s % Co

mp

Cell

s % Co

mp

-vj ro

BACILLARIOPHYTA

(DIA

TOMS

)--C

onti

nued

PENN

ALES

Con

tinu

ed

Navi

cula

rh

ynco

ceph

ala

Navi

cula

sabinians

var.

in

termedia

Navi

cula

tantula

Navi

cula tr

ipun

ctat

a Na

vicu

la vi

ridu

la

Navi

cula vi

ridu

la v

ar.

avea

me

Navi

cula

vi

ridu

la v

ar.

avenacea

Navi

cula

sp.

Nitz

schi

a acicularis

Nitz

schi

a communis

Nitz

schi

a di

ssip

ata

Nitz

schi

a fi

lifo

rmis

Ni

tzsc

hia

frus

tulu

m Ni

tzsc

hia

hantzschiana

Nitz

schi

a hu

ngar

ica

Nitz

schi

a ignorata

Nitz

schi

a intermedia

Nitz

schi

a 2atens

Nitz

schi

a li

near

is

Nitz

schi

a longissima v

ar.

reversa

Nitz

schi

a microcephala

Nitz

schi

a pa

lea

Nitz

schi

a pa

leac

ea

Nitz

schi

a pu

sill

a Ni

tzsc

hia

roma

na

Nitz

schi

a th

erma

l is

Ni

tzsc

hia

tryb

lion

ella

var

. debilis

Nitz

schi

a sp.

August 20,

1986--Continued

28 571.

9 3.

8

287.6

287.

6

57

15.4

28 28

1.9

1.9

Pleurosigma

delicatalum

Rhoi

cosphe

nia

curv

ata

Rhop

alodia

musculus

Suri

rella

angustata

Surirella

ovalis

Suri

rella

ovata

Syne

dra

acus

Syne

dra

deli

cati

ssim

aSy

nedr

a fa

scic

ulat

eSy

nedr

a mi

nusc

ula

Snye

dra

radiens

Syne

dra

rumpens

Syne

dra

rumpens

var.

familiaris

Syne

dra

ulna

Syne

dra

ulna

var

. contracta

Syne

dra

ulna

var.

dani

caSy

nedr

a ul

na va

r. ox

yrhy

nchu

sSy

nedr

a sp.

Thal

assios

ira

fluviatilis

CHLOROPHYTA

(GREEN A

LGAE)

Actinastrum hantzschii

Actinastrum

sp.


Anki

stro

desm

us convolutus v.

acicularis

Ankistrodesmus fa

lcat

us

Ankistro

desmus falcatus var.

acicularis

Ankistro

desmus falcatus var. mi

rabi

lis

Cart

eria

sp

. Ch

lamy

domo

nas

sp.

Chlo

rella

sp.

Chlorococcum hum

icol

a Chlorococcum sp.

Chlo

rogonium spirale

Chlorogonium s

p.


Clos

terium sp.

Cocc

omyx

a mi

nor

Crucigenia quadrata

140.9

281.

9

230

14.4

500

31.3

0.0

0.0

191.

213

0 43

8.1

2.7

Table

15.--raxa, numbers

t an

d percent

composition

of phytoplankton at

sit

es 1

and

2 in

Kenney

Reservoir, water

year

s 19

85-8

7--C

onti

nued

PHYLUM

ORDER

Genus

spec

ies

Kenn

ey Reservoir

(sit

e 1)

Kenn

ey Reservoir

(sit

e 2)

2-ft

depth

Comp

osit

e (0

-10

ft)

2-ft

depth

Composite

(0-1

0 ft

)Ce

lls

% Co

mp

Cells

% Co

mp

Cells

% Comp

Cell

s % Comp

CHLOROPHYTA

(GREEN A

LGAE)--Continued

Dict

yosphaerium

ehrenbergianum

Dict

yosp

haer

ium pulchellum

Dictyosphaerium

sp.

Gloe

ocys

tis

sp.

Gole

nkinia

radiata

Gole

nkin

iops

is solitaria

Gonium s

p.Kirchneriella

cont

orta

Mesotaenium

sp.

Micr

atin

ium

pus ilium

Micratinium

sp.

Moug

eoti

a sp.

Oocy

tis

sp.

Pand

orina

mo rum

Ph

acot

us lenticularis

Phacotus sp.

Platymonas sp

. Pteromonas sp

. Scenedesmu

s armatus

Scen

edes

mus

biju

ga

Scenedes

mus

dimorphus

Scen

edes

mus

quadricauda

Scenedes

mus

serratus

Scen

edes

mus

sp.

Schroederia

judayi

Schr

oederi

a se

tige

ra

Selenastrum minutum

Spha

eroc

ysti

s schroeteri

Staurastrum

sp.

Treubaria

sp.

August 20

, 1986--Continued

284.8

210

13.1

330

20.6

CHRYSOPHYTA

(GOLDEN-BROWN

ALGAE)

Dino

bryo

n divergens

Keph

yrio

n sp

iral

e Kephyrion

sp.

Mall

omon

as acaroides


Mallomonas gl

obos

a Mallomonas sp.

Pleurosigma

delicatulum

Pleurosigma

sp.

Ochromonas sp.


ALGA

E)

Anab

aena

sp

.Aphanoca

psa

deli

cati

ssim

a Aphanocapsa

sp.

Aphanoth

ece

sp.

Chroococcu

s dispersus

Chro

ococ

cus

limneticus

Chroococcu

s sp.

Dact

yloc

occo

psis

fascicularis

Dact

yloc

occo

psis

sp.

Lyngbya

limnetica

Lyngbya

nana

Mars

soni

ella

elegans

Osci

llat

oria

an

gust

a Oscillatoria an

gust

issi

ma

Osci

llat

oria

limnetica

Oscillatoria tenuis

Oscillatoria sp

. Phormidium sp.

Syne

choc

occu

s li

near

e Sy

nech

ococ

cus

sigmoidea

Syne

choc

occu

s si

gmoi

dea

f. mi

nor

Syne

choc

occu

s sp.

CRYPTOPHYTA

(CRYPTOMONADS)

Chroomonas

sp.

Cryp

tomo

nas

eros

a Cr

ypto

mona

s ma

rson

ii

Cryp

tomo

nas

ovat

a

300

280 19

250

250

400 19

360

18.8

17.5 1.2

15.6

15.6

25.0 1.2

22.5

350

280 71 28 28 310

200

21.9

17.5 4.4

0.0

0.0

1.8

1.8

19.4

12.5

0.0

620

41.3

620

41.3

0.0

0.0

Tabl

e l5.--Taxa

f numbers, an

d pe

rcen

t co

mpos

itio

n of

phytoplankton at s

ites 1

and

2 in

Kenne

i/ Res

ervo

ir, wa

ter

year

s 19

85-8

7- -Co

ntinued

o\

PHYLUM

rVDTOTP

UKUliiK

Genus

spec

ies

CRYPTOPHYTA

(CRY

PTOM

ONAD

S ) -

-Continued

Cryp

tomo

nas

rostrata

Cryp

tomo

nas

rost

ra tiformis

Cryp

tomo

nas

sp.

Rhod

omon

as m

inut

a

EUGLENOPHYTA (E

UGLE

NOID

S)Eu

glen

a ac

usEuglena

viri

dis

Euglena

sp.

rrac

helo

mona

s sp.

PYRR

HOPH

YTA

(DINOFLAGELLATES)


Gymn

odin

ium

sp.

Peri

dinium bic

eps

Peridinium i

nconspicua

Peridinium sp.

Total

cell

s and

percent

composition

Number of

sp

ecie

sDi

versity

inde

x (D

I) at species

leve

lBi

omass

(mg/

L dr

y weight)

Chlo

roph

yll

a (|

Jg/L

)Ch

loro

phyl

l Jb

(pg/L)

Chlo

roph

yll

c (pg/L)

Kenn

ey Reservoir (s

ite

1)2-ft

depth

Cells

% Co

mp

-- -- 19

1.2

-- 0 0.

0-- -- --

0 0.0

__ -- -- -- __

__

1,60

0 99

112.73 3.3

2.0

0.0

0.0

Comp

osit

e(0

-10

ft)

Cell

s % Co

mp

August 20,

-- -- 43

2.7

71

4.4

0 0.

0-- -- --

28

1.8

__ -- -- 28

1.8

__

__

1,60

0 97

143.13 3.4

2.0

0.0

0.0

Kenn

ey Reservoir (s

ite

2)2-ft

depth

Cells

% Comp

1986--Continued

-- -- ----

28

7.6

-- -- 28

7.6

0 0.0

__ -- -- -- --

--

370

99

82.65

18.0 __ -- --

--

Composite

(0-1

0 ft)

Cells

% Comp

-- -- --

0 0.0

-- -- --

__

__

-- -- -- --

--

1,50

0 99

152.

91 3.8 __ -- --

--

Sept

embe

r 16,

1986

BACILLARIOPHYTA

(DIA

TOMS

) 28

3.

5 18

0 23

.1

620

68.9

520

89.7

CENT

RALE

S 14

1.

8 71

9.1

28

3.1

57

9.8

Cycl

otel

la bo

dani

ca

Cycl

otel

la kutzingiana

Cyclotella me

negh

inia

na

--

--

28

3.6

Cyclotella ps

eudo

stel

lige

raCy

clot

ella

st

elli

gera

--

43

5.5

28

3.1

57

9.8

Melo

sira

granulata

var.

an

gust

issi

ma

Melo

sira

it

alic

a Me

losi

ra li

rata

Me

losi

ra sp.

Rhizosolenia er

iens

is

Stephanodiscus al

pinu

s Stephanodiscus as

trea

Stephanodiscus ni

agar

ae


Stephanodiscus sp

. 14

1.8

PENNALES

14

1.8

110

14.1

590

65.6

46

0 79

.3

Achnanthes af

fini

s Achnanthes lanceolata


Amphora

perpusilla

Amphora

vene

ta

Amphora

sp.

Aste

rion

ella

fo

rmos

a Cocconeis

placentula

Cylindrotheca

gracilis

Cylindrotheca

sp.

Cymatopleura so

lea

Cymb

ella

af

fini

s Cymbella m

inuta

Cymbella m

inuta

f. Jatens

Cymb

ella

minuta

var.

silesica

Cymb

ella

si

nuat

a Diatoma

ance

ps

Diatoma

hiemale

var. me

sodo

n

Tabl


comp

osit

ion

of phy

topl

ankt

on at

sites

1 an

d 2

in K

enney

Rese

rvoi

r, water

year

s 1985-87- -Continued

m?r»FT?

r .

benu

s sp

ecie

s

Kenn

ey Res

ervo

ir (s

ite

1)Kenney Reservoir

(sit

e 2)

2-ft

depth

Comp

osit

e (0

-10

ft)

2-ft

depth

Cells

Composite

(0-1

0 ft

)

BACILLARIOPHYTA

(DIA

TOMS

) -Continued

PENNALES- -C

onti

nued

Diat

oma

tenue

var.

el

onga

tum

Diat

oma

vulg

are

Dipl

onei

s sp.

Epit

hemi

a so

rex

Eunotia

sp.

Fragilaria

capucina

Fragilaria cr

oton

ensi

sFragilaria pinnata


Gomphonema

angustatum

Gyro

sigma

spencerii

Hannaea

arcus

Hannaea

arcus

var.

amphioxys

Hannaea

arcus

var.

arcus

Hantzschia

amphioxys

Meri

dion

circulare

Navi

cula

arvensis

Navi

cula

capitata

Navi

cula

cr

ypto

ceph

ala

Navi

cula

cryptocephala

var.

ve

neta

Navi

cula

ga

stru

mNa

vicu

la h

eufl

eri

Navicula lanceolata

Navi

cula

luzonensis

Navi

cula

me

nisc

ulus

va

r. up

saliensis

Navi

cula

mi

nima

Navi

cula mi

nusc

ula

Navicula m

utica

Navi

cula

not

ha

Sept

embe

r 16,

1986-Continued

141.

8

577.3

Navi

cula

pel

lico

saNa

vicu

la pupula

Navi

cula

ra

dios

aNa

vicu

la ra

dios

a va

r. tenella

Navi

cula

rhyncocephala

Navi

cula

sabinians

var.

intermedia

Navi

cula

ta

ntul

aNa

vicu

la tr

ipun

ctat

aNa

vicu

la vi

ridu

laNa

vicu

la vi

ridu

la v

ar.

avea

meNa

vicu

la v

irid

ula

var.

av

enac

eaNa

vicu

la sp.

Nitz

schi

a acicularis

Nitz

schi

a communis

Nitz

schi

a di

ssip

ata

Nitz

schi

a filiformis

Nitz

schi

a fr

ustu

lum

Nitz

schi

a hantzschiana

Nitz

schi

a hu

ngar

ica

Nitz

schi

a ignorata

Nitz

schi

a intermedia

Nitz

schi

a latens

Nitz

schi

a li

near

isNi

tzsc

hia

long

issi

ma v

ar.

reve

rsa

Nitz

schi

a microcephala

Nitz

schi

a palea

Nitz

schi

a pa

leac

eaNi

tzsc

hia

pusi

lla

Nitz

schi

a ro

mana

Nitz

schi

a thermal is

Nitz

schi

a tr

ybli

onel

la v

ar.

debi

lis

Nitz

schi

a sp

.Pleurosigma

delicatalum

Rhoicosphenia

curv

ata

Rhop

alod

ia m

uscu

lus

Surirella

angu

stat

aSu

rire

lla

oval

isSu

rire

lla

ovata

Syne

dra

acus

Syne

dra

deli

cati

ssim

a

310

34.4

230

39.7

14 14

1.8

1.8

576.

3

57

6.3

28

3.1

283.6

140

15.6

140

24.1

579.

8

284.

8

Tabl

e 15

.--r

a.xa

, numbers, an

d pe

rcen

t co

mpos

itio

n of

phytoplankt

on at

si

tes

I an

d 2

in Kenney

Reservoir, water

year

s 19S5-S7--Continued

PHYLUM

ORDER

Genus

species

Kenn

ey Reservoir (s

ite

1)Kenney Reservoir

(sit

e 2)

2-ft

depth

Composite

(0-1

0 ft)

2-ft

depth

Composite

(0-1

0 ft)

Cells

% Co

mp

Cell

s % Co

mp

Cells

% Co

mp

Cells

% Co

mp

oo

o

BACILLARIOPHYTA

(DIA

TOMS

)--C

onti

nued

PENNALES--

Continued

Syne

dra

fasc

icul

ate

Syne

dra

minu

scul

a Sn

yedr

a ra

dien

s Sy

nedr

a nunpens

Syne

dra

rumpens

var.

familiaris

Syne

dra

ulna

Syne

dra

ulna va

r. contracta

Syne

dra

ulna v

ar.

dani

ca

Syne

dra

ulna va

r. ox

yrhy

nchu

s Sy

nedr

a sp.

Thal

assi

osir

a fl

uvia

tili

s

CHLOROPHYTA

(GRE

EN A

LGAE)

Acti

nast

rum hantzschii

Actinastrum

sp.


Ankistrodesmus co

nvol

utus

v.

acic

ular

isAnkistrodesmus falcatus

Ankistrodesmus fa

lcat

us var.

acic

ular

isAnkistrodesmus falcatus va

r. mi

rabi

lis

Carteria sp.

Chla

mydo

mona

s sp.

Chlo

rella

sp.

Chlo

roco

ccum

hum

icol

a Ch

loro

coccum sp.

Chlo

rogo

nium

sp

iral

e

Sept

embe

r 16,

1986--Continued

260

32.5

270

34.6

0.0

284.

8

141.

8

435.

414

1.8

00

Chlo

rogo

nium

sp.

Chodatella guadriseta

Closterium

sp.

Cocc

omyx

a minor

Crucigenia qu

adra

ta

Dict

yosphaerium

ehrenbergianum

Di

ctyo


Dict

yosp

haer

ium

sp.

Gloeocysti

s sp.

Gole

nkinia

radiata

Gole

nkin

iops

is solitaria

Goni

um sp.

Kirc

hner

iell

a contorta

Meso

taen

ium

sp.

Micr

atin

ium

pus ilium

Micr

atin

ium

sp.

Moug

eoti

a sp.

Oocy

tis

sp.

Pand

orina

moru

m Ph

acot

us lenticularis

Phac

otus

sp

. Platymonas

sp.

Pteromonas sp.

Scen

edesmu

s armatus

Scenedesmus

bijuga

Scen

edesmu

s dimorphus

Scen

edes

mus

quad

rica

uda

Scen

edes

mus

serr

atus

Scenedesmu

s sp

. Sc

hroe

deri

a ju

dayi

Sc

hroe

deri

a se

tige

ra

Selenastrum mi

nutu

m Sp

haer

ocys

tis

schroeteri

Staurastrum

sp.

TreuJbaria sp

.

718.

914

1.8

141.

8

140 14 14

17.9 1.8

1.8

284.8

130

16.3

577.3

Table 15. Taxa,

numbers, an

d percent

composition

of phy

topl

ankt

on at

sites

1 an

d 2

in Kenney

Reservoir, water

year

s 19

85-8

7 Continued

PHYLUM

ORDER

Genu

s spec

ies

Kenn

ey Reservoir

(sit

e 1)

Kenn

ey Reservoir

(sit

e 2)

2-ft

depth

Comp

osit

e (0

-10

ft)

2-ft

depth

Composite

(0-1

0 ft

)Ce

lls

% Co

mp

Cell

s % Comp

Cells

% Co

mp

Cells

% Co

mp

oo

ho

CHRYSOPHYTA

(GOLDEN-BROWN

ALGAE)

Dino

bryo

n divergens

Keph

yrio

n sp

iral

e Ke

phyr

ion

sp.



Mall

omonas

gl

obos

a Mallomonas sp

. PI

eurosigma de

lica

tulu

m Pl

euro

sigm

a sp.

Ochromonas sp.


ALGA

E)

Anaf

caen

a sp.

Aphanoca

psa

delicatissima

Aphanoca

psa

sp.

Aphanothece

sp.

Chro

ococcu

s dispersus

Chro

ococ

cus

limn

etic

us

Chro

ococcu

s sp

. Dactylococcopsis fascicularis

Dactyloc

occopsis sp

. Ly

ngby

a limnetica

Lyngbya

nana

Ma

rsso

niel

la el

egan

s Oscillatoria angusta

Oscillatoria an

gust

issi

ma


Osci

llat

oria

tenuis

Osci

llat

oria

sp.

Sept

embe

r 16,

1986--Continued

85

10.6

100

12.8

0

0.0

0 0.0

71 14

380

180

8.9

1.8

47.5

22.5

200

25.0

57 43 99 14

7.3

5.5

12.7

1.8

85

10.9

280

31.1

284.8

284.8

280

31.1

Phormidiim sp.

Synechococcus

lineare

Syne

choc

occu

s sigmoidea

Syne

choc

occu

s sigmoidea

f. minor

Syne

choc

occu

s sp.

CRYPTOPHYTA

(CRYPTOMONADS)

42

5.3

130

16.7

0

0.0

0 0.0

Chroomon

as sp.

Cryp

tomo

nas

eros

aCryptomo

nas

marsonii

28

3.5

28

3.6

Cryptomo

nas

ovat

a Cryptomo

nas

rost

rata

Cryp

tomo

nas

rost

rati

form

is

--

--

28

3.6

Cryptomo

nas

sp.

--

14

1.8

Rhodomonas mi

nuta

14

1.8

57

7.3

EUGLENOPHYTA (E

UGLE

NOID

S)

0 0.0

0 0.0

0 0.0

0 0.0

Euglena

acus

Euglena

viri

dis

Euglena

sp.

oo

Trachelo

mona

s sp.

PYRRHOPHYTA

(DIN

OFLA

GELL

ATES

) 0

0.0

0 0.

0 0

0.0

0 0.

0 Ce

rati

um hirundinella

Gymnodinium

sp.

Peridiniim b

iceps

Peri

dini

im in

cons

picu

a Peridiniim sp.

Total

cell

s and

percent

composition

Number of sp

ecie

sDiversity

inde

x (D

I) at sp

ecie

s le

vel

Biom

ass

(mg/

L dr

y weight)

Chlorophyll

a (|

Jg/L

)Chlorophyll

b (|

Jg/L

)Chlorophyll

c (|

Jg/L

)

800

99

122.95 0.2

1.4

0.0

0.5

780

100

213.99 __

__

1.1

0.0

0.0

900

100

72.28 2.0

1.2

0.0

0.0

580 7

2.34 3.5

3.5

0.0

1.3

99

__ -- -- --

Tabl

e 15. Taxa,

numbers, an

d percent

comp

osit

ion

of phytoplankton at

si

tes

1 an

d 2

in Kenney

Reservoir, wa

ter years

1985-87-

-Conti

nued

TJUVTTTM

Kenn

ey Reservoir

(sit

e 1)

Kenney Reservoir (s

ite

2)Jr

Hi J-iUM

_ _

_, .

_ _

_ .

_ ,.,

2-ft

Co

mpos

ite

2-ft

Composite

"I

. depth

(0-1

0 ft

) depth

(0-1

0 ft

)nus

sPec

ies

Cell

s % Co

mp

Cells

% Co

mp

Cell

s % Comp

Cells

% Comp

June

9,

19

87

BACILLARIOPHYTA

(DIA

TOMS

) 44

0 0.6

--

--

280

1.6

CENTRALES

170

0.2

--

--

110

0.6

Cyclotella b

odan

ica

Cyclotella k

utzingiana

Cyclotella m

eneg

hini

ana

Cyclotel

la pse

udos

tell

iger

aCy

clot

ella

stelligera

170

0.2

--

--

110

0.6

Melo

sira

gr

anul

ata

var.

angustissima

Melo

sira

italica

Melo

sira

li

rata

Me

losi

ra sp.

Rhiz

osol

enia

eriensis

Stephanodiscus alpinus


Step

hanodi

scus

ni

agar

ae

Step

hanodi

scus

tenuis

Step

hanodi

scus

sp.

PENNALES

270

0.4

--

--

170

1.0

Achnanth

es af

fini

s Ac

hnan

thes

la

nceo

lata

Achnanth

es minutissima

Amphora

perpusilla

Amphora

veneta

Amph

ora

sp.

Aste

rion

ella

fo

nnos

a Cocconeis

placentula

Cylindrotheca

gracilis

Cylindrotheca

sp.

Cymatopleura so

lea

Cymbella affinis

Cymbella mi

nuta

--

--

--

--

57

0.

3Cy

mbel

la m

inuta

f. latens

Cymbella m

inuta

var.

silesica

Cymbella si

nuat

a Diatoma

anceps

Diatoma

hiemale

var.

me

sodo

n Diatoma

tenu

e va

r. el

onga

tum

Diatoma

vulg

are

Diploneis

sp.

57

0.1

Epit

hemi

a so

rex

Euno

tia

sp.

Fragilaria capucina

Fragilaria cr

oton

ensi

s Fragilar

ia pi

nnat

a Fragilar

ia va

uche

riae

Go

mpho

nema

angustatum

Gyro

sigm

a sp

ence

rii

Hannaea

arcus

14

0.0

Hannaea

arcu

s va

r. amphioxys

°°

Hannaea

arcus

var.

arcus

Hantzschia am

phio

xys

Meridion circulare

Navi

cula

arvensis

Navi

cula

capitata

Navi

cula

cryptocephala

Navi

cula

cryptocephala

var.

vene

ta

Navi

cula

ga

stru

m Na

vicu

la h

eufl

eri

Navi

cula

lanceolata

Navi

cula

luzonensis

Navi

cula

men

iscu

lus

var.

up

sali

ensi

s Na

vicu

la m

inim

a Na

vicu

la m

inus

cula

Na

vicu

la m

utic

a Na

vicu

la no

tha

Navi

cula

pel

lico

sa

57

0.1

Navi

cula

pu

pula

Navicula ra

dios

a Navicula ra

dios

a va

r. te

nell

a

Tabl

e 15. Taxa,

numb

ers,

an

d pe

rcen

t co

mpos

itio

n of phytoplankt

on at

sites

1 an

d 2

in K

enney

Reservoir, water

years

1985-87--Continued

PHYLUM

ORDER

Genus

spec

ies

Kenn

ey Re

serv

oir

(sit

e 1)

Kenney Reservoir (s

ite

2)2-

ft

depth

Composite

(0-1

0 ft)

2-ft

de

pth

Comp

osit

e (0

-10

ft)

Cells

% Co

mp

Cell

s % Co

mp

Cell

s % Comp

Cells

% Co

mp

BACI

LLAR

IOPH

YTA

(DIA

TOMS

)--C

onti

nued

PENNALES--

Cont

inue

dNavicula rh

ynco

ceph

ala

Navicula sabinians

var.

interm

edia

Navi

cula tantula

Navi

cula tr

ipun

ctat

aNa

vicu

la vi

ridu

laNavicula vi

ridu

la v

ar.

avea

meNa

vicu

la viridula va

r. av

enac

eaWavicula sp.

,_,

Nitz

schia

acicularis

°°

Nitz

schi

a communis

Nitz

schia

dissipata

57

0.1

Nitz

schi

a filiformis

Nitz

schia

frustulum

Nitzschia

hantzschiana

Nitz

schi

a hu

ngar

ica

Nitzschia

ignorata

Nitz

schi

a intermedia

Nitzschia

latens

Nitz

schi

a li

near

isNitzschia

longissima va

r. re

vers

aNi

tzsc

hia

micr

ocep

hala

Nitz

schi

a pa

lea

28

0.0

Nitz

schi

a pa

leac

eaNitzschia

pusi

lla

Nitz

schia

romana

Nitz

schi

a th

erma

lis

Nitz

schi

a tryblionella va

r. debilis

Nitz

schi

a sp

. 57

0.1

June

9, 1987--Continued

110

0.6

Pleu

rosi

gma

deli

cat a I t

unRh

oico

sphe

nia

curvata

Rhop

alod

ia m

usculus

Suri

rell

a angustata

Suri

rell

a ov

alis

Suri

rell

a ov

ata

Syne

dra

acus

Syne

dra

delicatissima

Syne

dra

fasc

icul

ate

Syne

dra

minu

scul

aSn

yedr

a radiens

Syne

dra

rumpens

Syne

dra

rumpens

var.

familiaris

Syne

dra

ulna

Syne

dra

ulna v

ar.

contracta

Syne

dra

ulna v

ar.

dani

caSy

nedr

a ulna v

ar.

oxyr

hync

hus

Syne

dra

sp.

ThaJassiosira

fluv

iati

lis

CHLO

ROPH

YTA

(GREEN A

LGAE)

280

0.4

--

--

57

0.3

Acti

nast

nan ha

ntzs

chii

Ac

tina

stna

n sp.



acicularis


Anki

stro

desm

us fa

lcat

us va

r.acicularis


r. mirabilis

Cart

eria

sp.

Chla

mydo

mona

s sp.

--

--

--

--

57

0.3

Chlo

rell

a sp.

57

0.1

Chlo

roco

ccum hum

icol

aCh

loro

cocc

um sp.

Chlo

rogo

nium

spi

rale

Chlo

rogo

nium sp.

Chodatella qu

adri

seta

Clos

teri

um sp.

Cocc

omyx

a minor

Cruc

igen

ia quadrata

Tabl

e 15. Taxa,

numbers, an

d percent

composition

of phytoplankton at

si

tes

1 an

d 2

in Kenney

Reservoir, water

year

s 1985-87-

-Conti

nued

PHYLUM

ORDER

Genu

s sp

ecie

s

Kenn

ey Reservoir

(sit

e 1)

Kenney Reservoir

(sit

e 2)

2-ft

depth

Composite

(0-1

0 ft

)2-

ft

depth

Composite

(0-1

0 ft)

Cells

% Comp

Cells

% Comp

Cell

s % Co

mp

Cell

s % Comp

0000

CHLO

ROPH

YTA

(GREEN ALGAE) Continued

Dictyosp

haer

ium

ehrenbergianum

Dictyosp

haer

ium pulchellum

Dict

yosp

haer

ium

sp.

Gloe

ocys

tis

sp.

Gole

nkin

ia ra

diat

a Golenkiniopsis solitaria

Gonium sp.

Kirc

hner

iella

cont

orta

Mesotaenium

sp.


Micratinium

sp.

Moug

eoti

a sp.

Oocy

tis

sp.

Pand

orin

a morum


Phac

otus

sp.

Platymonas

sp

. Pteromonas sp.

Scen

edes

mus

arma

tus

Scen

edes

mus

biju

ga

Scen

edes

mus

dimorphus

Scen

edes

mus

quad

rica

uda

Scen

edes

mus

serratus

Scenedesmu

s sp.

Schroederia

juda

yi

Schroederia

setigera

Sele

nast

rum mi

nutu

m Sp

haer

ocys

tis

schroeteri

Staurastrum

sp.

Treu

Jbar

ia sp.

June

9, 1987--Continued

110

0.2

110

0.2

CHRY

SOPH

YTA

(GOLDEN-BROWN

ALGA

E)

0 0.0

--

0 0.0

Dino

bryo

n divergens

Keph

yrio

n sp

iral

e Ke

phyr

ion

sp.

MaJJomon

as acaroides

Mall

omon

as akrokonos

Mallomon

as gl

obos

a Mallomonas sp.

Pleu

rosi

gma

delicatulum

Pleu

rosi

gma

sp.

Ochromonas sp.

CYANOPHYTA (B

LUE-

GREE

N AL

GAE)

0

0.0

--

--

0 0.

0 An

afca

ena

sp.

Aphanoca

psa

delicatissima

Aphanoca

psa

sp.

Aphanoth

ece

sp.

Chroococ

cus

dispersus

Chro

ococ

cus

limneticus

Chro

ococ

cus

sp.

Dact

yloc

occo

psis

fascicularis

Dact

yloc

occo

psis

sp.

Lyngbya

limnetica

Lyngbya

nana


Oscillatoria an

gust

a Os

cill

ator

ia an

gust

issi

ma

Osci

llat

oria

limnetica

Osci

llat

oria

tenuis

Osci

llat

oria

sp

. Ph

ormi

dium sp.

Syne

choc

occu

s Ji

near

e Sy

nech

ococ

cus

sigmoidea

Synechococcus

sigmoidea

f. mi

nor

Syne

choc

occu

s sp.

CRYPTOPHYTA

(CRYPTOMONADS)

0 0.0

--

0 0.0

Chroomon

as sp.

Cryptomonas

erosa

Cryp

tomo

nas

mars

onii

Cr

ypto

mona

s ov

ata

Tabl

e 15.--raxa, nu

mber

s, an

d percent

composition

of phytoplankton at si

tes

1 and

2 in

Kenney Re

serv

oir/

water

year

s 19

85-8

7--C

onti

nued

PHYLUM

ORDER

Genus

spec

ies

Kenney Reservoir

(sit

e 1)

Kenn

ey Reservoir (s

ite

2)2-

ft

depth

Composite

(0-1

0 ft

)2-ft

depth

Composite

(0-1

0 ft)

Cell

s % Co

mp

Cell

s % Co

mp

Cells

% Co

mp

Cells

% Co

mp

10 o

CRYP

TOPH

YTA

(CRY

PTOM

ONAD

S)--

Cont

inue

d Cr

ypto

mona

s rostrata

Cryptomonas

rost

rati

form

is

Cryptomonas

sp.

Rhodomonas minuta

EUGL

ENOP

HYTA

(E

UGLE

NOID

S)

Eugl

ena

acus

Euglena

viri

dis

Euglena

sp.

Trac

helomo

nas

sp.

PYRR

HOPH

YTA

(DINOFLAGELLATES)

Cera

tium

hirundinella

Gymnodin

ium

sp.

Peri

dini

um b

iceps

Peridinium in

cons

picu

a Peridinium sp.

Total

cell

s an

d pe

rcen

t composition

Number of species

Diversity

inde

x (D

I) at sp

ecie

s le

vel

Biomass

(mg/

L dr

y we

ight

)

Chlorophyll

a (|

Jg/L

)Chlorophyll

b (|

Jg/L

)Chlorophyll

c (|

Jg/L

)

June

9,

19

87--

Cont

inue

d

14 14

71,0

00

71,0

00

0.0

0.0

98.6

98.6

0 0.

0

17,000

100.

0

17,000

100.

0

72,0

00

100

120.

11276.2

17,000

102

50.

1866

.8

-- _ _

_ _-- ._

June

19

, 19

87

BACI

LLAR

IOPH

YTA

(DIATOMS)

230

13.5

110

16.4

40

0 76

.9

410

87.2

CENTRALES

200

11.8

71

10.6

10

0 19

.2

100

21.3

Cyclotella bo

dani

caCy

clot

ella k

utzingiana

28

1.6

71

10.6

57

11.0

57

12.1

Cyclotella m

eneg

hini

ana

170

10.0

43

8.3

43

9.1

Cyclotella p

seudostelligera

Cyclotella st

elli

gera

Me

losi

ra gr

anul

ata

var.

angustissima

Melo

sira

it

alic

a Me

losi

ra lirata

Melo

sira

sp.

Rhizosolenia er

iens

is

Stephanodiscus al

pinu

s Stephanodiscus as

trea

Stephanodiscus ni

agar

ae


Stephanodiscus sp.

PENN

ALES

28

1.6

42

6.3

300

57.7

310

66.0

Achnanthes af

fini

s Ac

hnan

thes lanceolata


Amphora

perpusilla

Amphora

vene

ta

Amphora

sp.

Aste

rion

ella

fo

rmos

a Cocconeis

placentula

Cylindrotheca

grac

ilis

Cylindrotheca

sp.

Cymatopleura so

lea

Cymbella af

fini

s Cymbella m

inuta

Cymbella m

inut

a f. latens

Cymb

ella

min

uta

var. si

lesi

ca

Cymb

ella

si

nuat

a Diatoma

ance

ps

Diatoma

hiemale

var. me

sodo

n

--

--

--

--

14

3.0

Tabl


composition

of p

hyto

plan

fcton

at si

tes

1 and

2 in Ke

nney

Res

ervo

ir,

water

years

1985

-87-

-Continued

PHYLUM

ORDER

Genus

spec

ies

Kenn

ey Reservoir (s

ite

1)2-

ft

Comp

osit

e depth

(0-1

0 ft

)

Kenney Reservoir (s

ite

2)2-ft

Comp

osit

edepth

(0-1

0 ft)

Cells

% Co

mp

Cells

% Co

mp

Cells

% Comp

Cell

s % Co

mp

BACILLARIOPHYT

A (D

IATO

MS)-

-Con

tinu

ed

PENN

ALES

--Co

ntin

ued

Diatoma

tenu

e var. el

onga

tum

Diat

oma

vulgare

Dipl

onei

s sp

.Epithemia

sorex

Eunotia

sp.

Frag

ilar

ia ca

puci

naFr

agil

aria

cr

oton

ensi

sFr

agil

aria

pinnata

Frag

ilaria

va

uche

riae

Gomp

honema

an

gust

atum

Gyro

sigma

spencerii

Hann

aea

arcus

Hann

aea

arcu

s va

r. am

phio

xys

Hann

aea

arcu

s va

r. ar

cus

Hant

zsch

ia amphioxys

Weridion

circulare

Navi

cula arvensis

Navi

cula ca

pita

taNa

vicu

la cr

ypto

ceph

ala

Wavi

cula

cr

ypto

ceph

ala

var.

ve

neta

Navi

cula

gastrum

Wavi

cula

heu

fieri

Navi

cula

lanceolata

Navi

cula

lu

zone

nsis

Navi

cula

men

iscu

lus

var.

up

saliensis

Navi

cula

min

ima

Navi

cula

minuscula

Wavicula m

utic

aNa

vicu

la n

otha

June 19,

1987

--Co

ntin

ued

286.0

285.4

286.0

Navi

cula

pe

llic

osa

Navi

cula

pup

ula

Navi

cula

radiosa

Navi

cula

radiosa

var.

te

nell

aNa

vicu

la rh

ynco

ceph

ala

Navi

cula

sabinians

var.

intermedia

Navi

cula

ta

ntul

aNa

vicu

la tr

ipun

ctat

aNa

vicu

la vi

ridu

laNa

vicu

la vi

ridu

la v

ar.

avea

me

--

--

--

--

57

11.0

11

0 23

.4Na

vicu

la vi

ridu

la v

ar.

avenacea

Navi

cula

sp.

Nitz

schi

a ac

icul

aris

--

28

4.2

57

11.0

28

6.

0Ni

tzsc

hia

comm

unis

Nitz

schi

a di

ssip

ata

--

--

--

--

14

3.0

Nitz

schi

a filiformis

Nitz

schi

a frustulum

Nitz

schi

a ha

ntzs

chia

na

--

--

--

--

57

11.0

14

3.

0Ni

tzsc

hia

hung

aric

aNi

tzsc

hia

ignorata

--

--

14

2.7

7 1.

5£

Nitz

schi

a intermedia

--

14

2.1

28

5.4

14

3.0

Nitz

schi

a latens

--

--

--

--

28

5.4

Nitz

schi

a linearis

Nitz

schi

a longissima va

r. re

vers

aNi

tzsc

hia

microcephala

Nitz

schi

a pa

lea

Nitz

schi

a pa

leac

eaNi

tzsc

hia

pusilla

Nitz

schi

a ro

mana

28

1.

6 --

--

14

2.7

14

3.0

Nitz

schi

a th

erma

lis

Nitz

schi

a tr

ybli

onel

la va

r. de

bili

sNi

tzsc

hia

sp.

Pleurosigma

delicatalmn

Rhoicosphenia

curv

ata

Rhop

alod

ia mu

scul

usSu

rire

lla

angustata

Suri

rell

a ov

alis

Suri

rell

a ov

ata

Syne

dra

acus

Syne

dra

delicatissima

Tabl

e 15.--raxa, nu

mber

s, an

d pe

rcen

t composition

of phytoplankton at

sites

1 an

d 2

in Kenney

Rese

rvoi

r, wa

ter years

1985

-87-

-Continued

PHYLUM

ORDER

Genu

s sp

ecie

s

Kenney Reservoir (s

ite

1)Kenney Reservoir

(sit

e 2)

2-ft

Composite

2-ft

Composite

depth

(0-1

0 ft

) depth

(0-1

0 ft

)Cells

% Co

mp

Cells

% Comp

Cells

% Co

mp

Cells

% Co

mp

BACILLARIOPHYTA

(DIA

TOMS

)--C

onti

nued

PENNALES--Continued

Syne

dra

fasc

icul

ate

Syne

dra

minu

scul

a Sn

yedr

a ra

dien

s Sy

nedr

a ru

mpen

sSy

nedr

a ru

mpen

s va

r. fa

mili

ar is

Sy

nedr

a ulna

Syne

dra

ulna

var

. contracta

Syne

dra

ulna v

ar.

dani

ca

Syne

dra

ulna

var

. ox

yrhy

nchu

s Sy

nedr

a sp

. TT

iala

ssio

sira

fluviatilis

CHLO

ROPH

YTA

(GREEN AL

GAE)

Actinast

rum hantzschii

Actinast

rum

sp.

Anki

stro

desm

us convolutus

Anki

stro

desm

us convolutus v.

acicularis

Ankistro

desmus falcatus


r.acicul

aris

Anki

stro

desm

us fa

lcat

us va

r. mi

rabi

lis

Carteria sp.

Chla

mydo

mona

s sp.

Chlorella

sp.

Chlo

roco

ccum humicola

Chlo

roco

ccum

sp.

Chlo

rogo

nium

sp

iral

e

June 19,

1987--Contined

142.7

439.

1

310

18.2

320

47.8

110

21.2

143.

0

Chlo

rogo

nium

sp.


Closterium sp.

Cocc

omyx

a minor

Crucigenia qu

adra

ta

Dict

yosp

haerium

ehrenbergianum

Di

ctyo


Dictyosphaerium

sp.

Gloe

ocys

tis

sp.

Golenkinia ra

diat

a Golenkiniopsis so

lita

ria

Goni

um sp.

Kirchneriella

contorta

Meso

taen

ium

sp.

Micratinium

pusillum

Micr

atin

ium

sp.

Moug

eoti

a sp.

Oocy

tis

sp.

Pand

orin

a morum

Phac

otus

lenticularis

Phacotus sp.

Platymon

as sp.

Pteromon

as sp.

Scen

edes

mus

arma

tus

Scen

edes

mus

biju

ga

Scen

edes

mus

dimo

rphu

s Sc

ened

esmu

s quadricauda

Scen

edes

mus

serratus

Scen

edes

mus

sp.

Schroederia

juda

yi

Schroederia

seti

gera

Se

lena

stru

m mi

nutu

m Sp

haer

ocys

tis

schr

oete

ri

Staurastrum

sp.

Treubaria

sp.

110

21.2

143.

0

281.6

280

16.5

260

38.8

578.5

vo ON

Tabl

e 15.--Taxa, numbers, an

d pe

rcen

t composition

of phytoplankton at

si

tes

I an

d 2

in K

enney

Reservoir, water

year


PHYLUM

ORDER

Genu

s species


1)2-ft

depth

Cell

s % Comp

Composite

(0-10

ft)

Cell

s % Co

mp

Kenney Reservoir (s

ite

2)2-ft

depth

Cell

s % Co

mp

Composite

(0-1

0 ft

)Ce

lls

% Comp

CHRYSOPHYTA

(GOLDEN-BROWN

ALGA

E)

Dino

Jbry

on d

ivergens

Keph

yrio

n sp

iral

e Ke

phyr

ion

sp.

Mall

omonas

acaroides

Mall

omon

as akrokonos

Mallomonas gl

obos

a Ma

llom

onas

sp.

PIeurosig

ma de

lica

tulu

m Pl

euro

sigm

a sp.

Ochromonas sp.


ALGA

E)

AnaJ

baen

a sp.

Aphanocapsa

delicatissima

Aphanocapsa

sp.

Aphanothece

sp.

Chro

ococ

cus

disp

ersu

s Ch

rooc

occu

s limneticus

Chro

ococ

cus

sp.

Dact

yloc

occo

psis

fascicularis

Dact

yloc

occo

psis

sp.

Lyng

bya

limnetica

Lyngbya

nana

Ma

rsso

niel

la elegans

Osci

llat

oria an

gust

a Os

cill

ator

ia an

gust

issi

ma


Oscillatoria tenuis

Osci

llat

oria

sp.

28 28 140

1.6

1.6

790

46.5 8.2

620

36.5

June 19,

1987--Continued

43

6.4

0 0.

00.

0

436.4

142.

10.

014

3.0

142.

1

143.

0

Phormidi

um sp.

Syne

choc

occu

s 1i

near

e Sy

nech

ococ

cus

sigmoidea

Syne

choc

occu

s sigmoidea

f. mino

rSy

nech

ococ

cus

sp.

CRYP

TOPH

YTA

(CRY

PTOM

ONAD

S)Chroomonas

sp

.Cr

ypto

mona

s erosa

Cryp

tomo

nas

mars

onii

Cryp

tomo

nas

ovat

aCr

ypto

mona

s ro

stra

ta

Cryp

tomo

nas

rost

ra tiformis

Cryp

tomo

nas

sp .

Rhodomonas minuta

EUGLENOPHYTA (E

UGLE

NOID

S)Eu

glen

a acus

Eugr

lena

vi

ridi

sEu

gr2e

na sp.

Trache2omonas

sp.

PYRRHOPHYTA

(DINOFLAGELLATES)

Ceratium

hir

undi

nell

aGymnodin

ium

sp.

Peri

dini

um bic

eps

Peridini

um inconspicua

Peridini

um sp.

Total

cell

s and

percent

comp

osit

ion

Number of

sp

ecie

sDi

versity

inde

x (D

I) at species

level

Biomass

(mg/

L dry

weig

ht)

Chlo

roph

yll

a (Mg/L)

Chlo

roph

yll

b (Mg/L)

Chlo

roph

yll

c (Mg/L)

28

260 -- 28 -- -- --

230 0 -- -- 110 -- -- 110 -- --

1,70

0 122.

80 3.4 -- -- --

1.6

15.3

0 0.0

__ 1.6

__ __ __ __ 13.5 0.0

0 0.0

__ __ __

__

__

6.5

180

26.9

__ 6.5

180

26.9

__ __

__

__

102

670

100

82.

37 3.9

__ ____

__

-- 0 -- -- -- -- -- -- -- 0 -- -- 14 -- 14 -- --

520 13

3.40

11.1 -- -- __

__ 0.0

14 __ __ __ __

14

0.0

14__

14

2.7

0__ __ 2.7

__ --

--

101

470 17

3.65

12.7

__ __ --

--

-- 3.0

-- -- -- -- -- -- -- 3.0

3.0

-- 3.0

0.0

-- -- -- -- --

99

_ _ __ -- -- --

co

Table

15.-

-rax

a, numbers, an

d percent

composition

of phytoplankt

on at

si

tes

1 an

d 2

in K

enney

Rese

rvoi

r, water

year

s 19

85-8

7--Continued

PHYTTTM

jrnx j-i

Uii

nPTOTD

Genu

s species

BACI

LLAR

IOPH

YTA

(DIA

TOMS

)CENTRALES

Cyclotella b

odanica

Cyclotella kutzingiana

Cyclotella m

eneghiniana

Cyclotel

la p

seud

oste

llig

era

Cyclotella stelligera

Kenn

ey Reservoir

(sit

e 1)

2-ft

depth

Cell

s

170

130 71 -- --

% Co

mp

27.0

20.6 -- 11.3 -- --

Composite

(0-1

0 ft)

Cell

s

71 14 -- 14 -- --

% Co

mp

July 15,

15.8 3.1

-- 3.1

-- --

Kenn

ey Reservoir

(sit

e 2)

2-ft

depth

Cells

1987 320 70 -- 14 -- 28

% Comp

74.4

16.3 -- -- 3.3

-- 6.5

Comp

osit

e(0

-10

ft)

Cells

870

140 -- -- --

% Comp

30.0 4.8

-- -- --Me

losi

ra gr

anul

ata

var.

Me

losi

ra italica

Melo

sira

li

rata

Me

losi

ra sp.

Rhizosolenia er

iens

is

Step

hano

disc

us al

pinu

s St

epha

nodi

scus

astrea

Step

hano

disc

us ni

agar

ae

Step

hano

disc

us tenuis

Step

hano

disc

us sp.

PENN

ALES

Achn

anth

es af

fini

s Ac

hnan

thes

lanceolata

Achn

anth

es minutissima

Amphora

perpusilla

Amphora

vene

ta

Amph

ora

sp.

Aste

rion

ella

formosa

Cocconeis

placentula

Cylindrotheca

gracilis

Cyli

ndro

thec

a sp.

Cymatopleura solea

angu

stis

sima

579.

0

286.5

426.7

5712

.725

058

.1

140

4.8

730

25.2

Cymbella affinis

Cymb

ella

mi

nuta

Cymbella m

inut

a f. la

tens

Cymbella m

inut

a var. si

lesi

caCymbella si

nuat

aDi

atom

a an

ceps

Diat

oma

hiemale

var.

me

sodo

nDi

atom

a te

nue

var.

elongation

Diat

oma

vulgare

Diploneis

sp.

Epit

hemia

sore

xEu

noti

a sp

.Fragilaria ca

puci

naFr

agil

aria

cr

oton

ensi

sFragilaria pinnata

Frag

ilar

ia vaucheriae

Gomphone

ma angustatum

Gyrosigma

spencerii

Hann

aea

arcu

sHa

nnae

a ar

cus

var.

amphioxys

Hann

aea

arcu

s va

r. arcus

Hantzsch

ia amphioxys

Meri

dion

ci

rcul

are

Navi

cula

arvensis

Navi

cula capitata

Navi

cula cr

ypto

ceph

ala

Navi

cula cr

ypto

ceph

ala

var.

ve

neta

Navi

cula ga

stru

mNavicula he

ufie

riNa

vicu

la la

nceo

late

Navicula luzonensis

Navicula m

enisculus

var.

up

sali

ensi

sNa

vicu

la m

inim

aNavicula mi

nusc

ula

Navi

cula

mutica

Navicula no

tha

Navi

cula

pel

lico

saNavicula pupula

Navi

cula

ra

dios

aNavicula radiosa

var.

tenella

281.

0

142.

2

143.3

110

3.8

ro o

o

Tabl

e 15

.--T

axa,

numbers, and pe

rcen

t co

mpos

itio

n of phytoplankt

on at

si

tes

1 an

d 2

in Kenney

Rese

rvoi

r, water

years

1985-S7--Continued

PHYLUM

ORDER

Genu

s species


1)2-ft

depth

Cell

s % Comp

Composite

(0-10

ft)

Cell

s % Comp

Kenney Reservoir (s

ite

2)2-ft

depth

Cell

s % Comp

Composite

(0-1

0 ft

)Ce

lls

% Co

mp

BACILLARIOPHYTA (DIATOMS)--Continued

PENNALES--Continued

Navi

cula

rhyncocephala

Navi

cula sabinians

var.

in

termedia

Navi

cula

ta

ntul

aNa

vicu

la tr

ipun

ctat

aNa

vicu

la viridula

Navi

cula

vi

ridu

la va

r. av

eame

Navi

cula

vi

ridu

la v

ar.

aven

acea

JVav

icuI

a sp.

Nitz

schia

acic

ular

isN

itzs

chia

co

nanu

nis

Nitz

schi

a di

ssip

ata

Nitz

schi

a filiformis

Nitz

schi

a fr

ustu

lum

Nitz

schi

a hantzschiana

Nitz

schi

a hu

ngar

ica

Nitz

schia

ignorata

Nitz

schi

a in

term

edia

Nitz

schi

a latens

Nitz

schia

line

aris

Nitz

schi

a lo

ngis

sima

var

. re

vers

aNi

tzsc

hia

micr

ocep

hala

Nitz

schia

pale

aNi

tzsc

hia

pale

acea

Nitz

schi

a pu

s ill a

Nitz

schi

a ro

mana

Nitz

schi

a thermalis

Nitz

schi

a tr

ybli

onel

la v

ar.

debi

lis

Nitz

schia

sp.

July 15,

1987--Continued

14

143.

1

284.4

439.

6

14 71 71 28 14 28

3.3

3.3

16.5

16.5 6.5

3.3

6.5

28 57 28 140 85 85 28 140

1.0

2.0

1.0

4.8

2.9

2.9

1.0

4.8

fO o

Pleu

rosi

gma

delicatalum

Rhoicosphenia

curvata

Rhopalodia mu

scul

usSurirella

angustata

Surirella

oval is

Surirella

ovat

aSy

nedr

a ac

usSy

nedr

a de

lica

tiss

ima

Syne

dra

fasc

icul

ate

Syne

dra

minu

scul

aSn

yedr

a radiens

Syne

dra

rumpens

Syne

dra

rumpens

var.

fa

mili

aris

Syne

dra

ulna

Syne

dra

ulna v

ar.

contracta

Syne

dra

ulna va

r. da

nica

Syne

dra

ulna v

ar.

oxyr

hync

hus

Syne

dra

sp.

Thal

assios

ira

fluviatilis

CHLO

ROPH

YTA

(GREEN A

LGAE)

280

44.4

Actinastrum hantzschii

Acti

nast

rum

sp.


14

2.2

Ankistro

desmus convolutus v.

acicularis

Ankistrodesmus

Ankistrodesmus

acicular

isAnkistro

desmus falcatus va

r. mi

rabi

lis

14

2.2

Carteria sp.

--

Chla

mydomo

nas

sp.

--

Chloralla

sp.

Chlo

rococcum hum

icol

aCh

loro

coccum sp

. 14

2.2

Chlo

rogo

nium

sp

iral

eCh

loro

goni

um sp.

--

Chod

atel

la qu

adri

seta

Closterium sp.

--

Cocc

omyxa minor

Crucigenia qu

adra

ta

5612

.40.

00.

0

falc

atus

fa

lcat

us va

r.

143.1

Tabl

e 15. Taxa,

numb

ers,

and percent

composition

of phy

topl

ankt

on at

sites

1 an

d 2

in K

enne

y Reservoir, wa

ter

years

1985-87 Continued

PHYLUM

ORDER

Genu

s species

Kenn

ey Reservoir

(sit

e 1)

Kenney Reservoir

(sit

e 2)

2-ft

depth

Comp

osit

e (0

-10

ft)

2-ft

depth

Composite

(0-1

0 ft

)Ce

lls

% Co

mp

Cells

% Co

mp

Cell

s % Co

mp

Cell

s % Co

mp

CHLOROPHYTA

(GREEN A

LGAE

)--C

onti

nued

Dictyosphaerium

ehrenbergianum

Dict

yosp

haerium pulchellum

Dictyosphaerium

sp.

Gloe

ocys

tis

sp.

Golenfeinia

radi

ata

Gole

nkinio

psis

solitaria

Gonium sp.

Kirc

hner

iell

a contorta

Mesotaenium

sp.


Micr

atin

ium

sp.

Moug

eoti

a sp.

Oocy

tis

sp.

Pand

orina

morum

Phac

otus

lenticularis

Phacotus sp.

Platymonas sp.

Pteromon

as sp.

Scen

edes

mus

armatus

Scenedes

mus

biju

ga

Scen

edes

mus

dimorphus

Scenedesmu

s quadricauda

Scen

edes

mus

serr

atus

Sc

ened

esmu

s sp.

Schroederia

juda

yi

Schr

oede

ria

setigera

Selenastrum mi

nutu

m Sp

haer

ocys

tis

schroeteri

Staurast

rum

sp.

TreuJbaria sp.

July

15,

1987--Continued

142.

214

3.1

140

22.2

286.

2

284.4

579.0

O oo

CHRY

SOPH

YTA

(GOLDEN-BROWN

ALGAE)

Dino

bryo

n divergens

Keph

yrio

n spirals

Keph

yrio

n sp.

Mall

omon

as acaroides


Mallomonas gl

obos

a Mallomonas sp

. PI

eurosigma delicatulum

Pleu

rosi

gma

sp.

Ochromonas sp

.


ALGA

E)

Anabaena sp.

Aphanoca

psa

deli

cati

ssim

a Aphanoca

psa

sp.

Aphanothece

sp.

Chroococ

cus

dispersus

Chroococ

cus

limn

etic

us

Chro

ococ

cus

sp.

Dact

yloc

occo

psis

fascicularis


Lyng

bya

limn

etic

a Ly

ngby

a na

na


Osci

llat

oria

angusta

Osci

llat

oria

an

gust

issi

ma

Osci

llat

oria limnetica

Osci

llat

oria

te

nuis

Os

cill

ator

ia sp.

Phormidi

um sp.

Syne

choc

occu

s li

near

e Sy

nech

ococ

cus

sigm

oide

a Sy

nech

ococ

cus

sigmoidea

f. mino

r Sy

nech

ococ

cus

sp.

CRYPTOPHYTA

(CRYPTOMONADS)

Chroomon

as sp.

Cryp

tomo

nas

eros

a Cr

ypto

mona

s ma

rson

ii

Cryp

tomo

nas

ovat

a

42 28 14 57

6.7

4.4

2.2

85

13.5

28 14 14

6.2

3.1

3.1

0.0

0.0

57

12.7

85

13.5

57

12.7

57

9.0

240

53.3

9.0

240

53.3

85

19.8

2,000

69.0

28 14 14

6.5

57

13.3

28 230

3.3

3.3

1.0

7.9

1,50

0 51.7

260

9.0

0.0

Tabl

e 15. Ta

xa,

numbers, an

d pe

rcen

t co

mpos

itio


sites

1 an

d 2

in K

enney

Reservoir, wa

ter

year

s 19

85-8

7--Continued

PHYLUM

ORDER

Genus

spec

ies

Kenn

ey Reservoir (s

ite

1)2-

ft

depth

Comp

osit

e (0

-10

ft)

Kenn

ey Reservoir (s

ite

2)2-ft

Comp

osit

e de

pth

(0-1

0 ft)

Cell

s % Co

mp

Cell

s % Co

mp

Cell

s % Co

mp

Cell

s % Co

mp

to o

CRYPTOPHYTA

(CRY

PTOM

ONAD

S)--

Cont

inue

d Cryptomonas

rostrata

Cryp

tomo

nas

rost

rati

form

is

Cryp

tomo

nas

sp.

jR/i

odom

onas

mi

nuta

EUGL

ENOP

HYTA

(E

UGLE

NOID

S)

Eugl

ena

acus

Eugl

ena

viri

dis

Euglena

sp.

Trac

helo

mona

s sp.

PYRRHOPHYTA

(DINOFLAGELLATES)

Cera

tium

hir

undi

nell

a Gymnodinium

sp.

Peridinium bic

eps

Peridinium in

cons

picu

a Peridinium sp.

Total

cell

s and

percent

composition

Number of sp

ecie

sDiversity

inde

x (DI) at

sp

ecie

s le

vel

Biomass

(mg/

L dr

y we

ight

)

July

15,

1987--Continued

0.0

0.0

0.0

14 14

0.0

3.3

3.3

0.0

28 28

0.0

1.0

1.0

630

101

153.48

12.1

450

100

102.36

12.2

430 15

3.62 1.7

101

2,900

100

162.68 2.8

August 13,

1987

BACI

LLAR

IOPH

YTA

(DIA

TOMS

) 630

39.4

580

41.4

920

70.8

640

64.0

CENTRALES

420

26.3

420

30.0

20

0 15

.4

110

11.0

Cyclotella bo

dani

ca

Cyclotella ku

tzin

gian

aCy

clot

ella

meneghiniana

14

0.9

~

--

170

13.1

11

0 11

.0

Cyclotella ps

eudo

stel

lige

raCy

clot

ella

stelligera

71

4.4

110

7.9

28

2.2

Melosira granulata

var. an

gustis

sima

330

20.6

310

22.1

Me

losi

ra italica

Melo

sira

lirata

Melo

sira

sp.

&hizoso2enia eriensis

Stephanodiscus al

pinu

s St

epha

nodi

scus

as

trea

St

epha

nodi

scus

ni

agar

ae

Step

hano

disc

us te

nuis

St

epha

nodi

scus

sp.

o

PENNALES

210

13.1

160

11.4

720

55.4

530

53.0

Achnanthes affinis

Achnanth

es lanceolata


Amphora

perpusilla

Amphora

veneta

Amphora

sp.

Aste

rion

e22a

formosa

Cocconeis

plac

entu

la

Cylindrotheca

gracilis

Cylindrotheca

sp.

Cymatopleura so

lea

Cymb

ella

affinis

Cymbella minuta

Cymb

ella

minuta

f. 2atens

Cymbella minuta v

ar.

silesica

Cymbella sinuata

Diatoma

anceps

Diat

oma

hiemale

var.

me

sodo

n

Table

15.-

-rax

a, numbers, an

d percent

composition

of phytoplankton at

si

tes

1 an

d 2

in Ken

ney

Reservoir, wa

ter

year

s 19

85-8

7--C

ontinu

ed

Kenn

ey Reservoir

(sit

e 1)

Kenney Reservoir

(sit

e 2)

2-ft

Composite

2-ft

Comp

osit

edepth

(0-1

0 ft

) depth

(0-1

0 ft

) *

- -

*

- -

Cell

s % Comp

Cell

s % Co

mp

Cell

s % Co

mp

Cells

% Co

mp

BACI

LLAR

IOPH

YTA

(DIATOMS)-Continued

Au*USt

13

' 1987-Continued

PENNALES--

Cont

inue

dDiatoma

tenu

e va

r. elongratum

Diat

oma

vulg

are

Dipl

onei

s sp.

Epit

hemi

a so

rex

Eunotia

sp.

Fragilaria capucina

Fragilaria cr

oton

ensi

s 200

12.5

160

11.4

Fragilaria pi

nnat

a Fragilaria va

uche

riae

o

Gomp

hone

ma angustatum

Gyrosigma

spencerii

Hann

aea

arcus

Hann

aea

arcu

s va

r. amphioxys

Hannaea

arcus

var.

ar

cus


Meridion c

irculare

Navi

cula

ar

vens

is

Navi

cula

capitata

Navi

cula

cr

ypto

ceph

ala

Navi

cula

cr

ypto

ceph

ala

var.

ve

neta

Na

vicu

la ga

stru

m Na

vicu

la h

eufl

eri

Navi

cula

lanceolate

Navi

cula

luzonensis

Navi

cula

me

nisc

ulus

va

r. up

sali

ensi

s Na

vicu

la m

inim

a Na

vicu

la m

inus

cula

Na

vicu

la mu

tica

Na

vicu

la n

otha

--

--

--

85

6.5

57

5.7

N> O

Navi

cula

pel

lico

saNa

vicu

la p

upula

Navi

cula

ra

dios

aNa

vicu

la radios a

var. te

nell

aNa

vicu

la rh

ynco

ceph

ala

Navi

cula

sa

bini

ans

var.

interm

edia

Navi

cula

ta

ntul

aNa

vicu

la tr

ipun

ctat

aNa

vicu

la viridula

Navi

cula

viridula v

ar.

avea

meNa

vicu

la viridula va

r. avenacea

Navi

cula

sp.

Nitz

schi

a acicularis

Nitz

schi

a communis

Nitz

schi

a di

ssip

ata

Nitz

schi

a fi

lifo

rmis

Nitz

schi

a fr

ustu

lum

Nitz

schia

hant

zsch

iana

Nitz

schi

a hu

ngar

ica

Nitz

schi

a ignorata

Nitz

schi

a intermedia

Nitz

schi

a latens

Nitz

schi

a li

near

isNi

tzsc

hia

longissima va

r. reversa

Nitz

schi

a microcephala

Nitz

schi

a palea

Nitz

schi

a pa

leac

eaNi

tzsc

hia

pusi

lla

Nitz

schi

a romana

Nitz

schi

a thermal is

Nitz

schi

a tr

ybli

onel

la v

ar.

debi

lis

Nitz

schi

a sp.

Pleu

rosigma

delicatalum

Rhoi

cosp

heni

a curvata

Rhopalodia musculus

Surirella

angustata

Surirella

oval

is

Suri

rell

a ov

ata

Syne

dra

acus

Syne

dra

delicatissima

14 851.

1 6.

57

0.7

57

5.7

574.4

282.8

574.4

141.

4

856.

585

8.5

282.2

85 28

8.5

2.8

280

21.5

140

14.0

28

2.2

282.8

Tabl

e 15.--Taxa, nu

mber

s, and pe

rcen

t composition

of phy

topl

ankt

on at si

tes

1 and

2 in Kenney Re

serv

oir,

water years 19

85-8

7--Continued

PHYLUM

ORDER

Genus

species

Kenn

ey Reservoir

(sit

e 1)

Kenn

ey Reservoir (s

ite

2)2-ft

Comp

osit

e 2-ft

Composite

depth

(0-1

0 ft)

depth

(0-1

0 ft

)Ce

lls

% Comp

Cells

% C

omp

Cells

% Comp

Cells

% C

omp

o

oo

BACI

LLAR

IOPHYTA


PENN

ALES

--Cont

inue

d Sy

nedr

a fasc

icul

ate

Syne

dra minuscula

Snye

dra

radi

ens

Syne

dra

rump

ens

Syne

dra

rumpens

var.

fa

mili

aris

Synedra

ulna

Syne

dra

ulna

var

. contracta

Synedra

ulna v

ar.

dani

ca

Syne

dra

ulna

var

. ox

yrhy

nchu

s Sy

nedra

sp.

Thal

assiosir

a fluviatilis

CHLO

ROPH

YTA

(GREEN A

LGAE)

Actinastru

m ha

ntzs

chii

Actinast

rum

sp.

Anfc

istr

odesmus

convolutus

Anfc

istr

odesmus

conv

olut

us v.

acicular

isAn

fcis

trodesmus

falcatus

Anfc

istr

odesmus

falcatus va

r.ac

icularis

Anki

strodesm

us falcatus va

r. mi

rabi

lis

Cart

eria

sp.

Chla

mydo

mona

s sp.

Chlo

rella

sp.

Chlorococcum humicola

Chlorococcum sp.

Chlo

rogonium

spirale

August 13

, 1987--Continued

140.

9

420

26.3

200

14.3

282.

228

2.8

141.0

282.

228

2.8

ro

Chlo

rogo

nium

sp

. Chodatella quadriseta

Closterium sp.

Coccomyxa

mino


Dict

yosp

haerium

ehrenbergianum

Di

ctyo


Dict

yosphaerium

sp.

Gloe

ocys

tis

sp.

Gole

nkin

ia ra

diat

a Go

lenk

inio

psis

solitaria

Goni

um sp.

Kirchneriella

cont

orta

Me

sota

eniu

m sp

. Mi

crat

iniu

m pusillum

Micr

atin

ium

sp.

Moug

eoti

a sp

. Oo

cyti

s sp.

Pandorina

mo rum

Phac

otus

lenticularis

Phac

otus

sp.

Platymonas sp

. Pteromonas

sp.

Scen

edes

mus

armatus

Scen

edes

mus

biju

ga

Scenedes

mus

dimorphus

Scen

edes

mus

quad

rica

uda

Scen

edes

mus

serratus

Scen

edes

mus

sp.

Schr

oede

ria

juda

yi

Schroederia

setigera

Selenastrum mi

nutu

m Sp

haer

ocys

tis

schroeteri

Staurastrum

sp.

Treubaria

sp.

573.6

574.

1

141.0

14

0.9

160

10.0

57

4.1

170

10.6

14

1.0

14

0.9

43

3.1

Tabl

e 15. Taxa

t nu

mber

s, and pe

rcen

t composition

of phy

topl

ankt

on at

si

tes

1 and

2 in

Kenney

Reservoir, water

year

s 19

85-8

7--Continued

PHYL

UM

ORDE

RGenus

spec

ies

Kenney Res

ervo

ir (site

1)Ke

nney

Res

ervo

ir (site

2)2-

ft

dept

hComposite

(0-10

ft)

2-ft

de

pth

Composite

(0-1

0 ft)

Cells

% C

omp

Cells

% C

omp

Cells

% C

omp

Cells

% C

omp

CHRYSOPHYTA

(GOL

DEN-

BROW

N AL

GAE)

Di

nobr

yon

divergens

Keph

yrio

n sp

iral

e Ke

phyr

ion

sp.

Wallomonas acaroides

Wall

omonas

akrokonos

Wallomonas gl

obos

a Wallomonas sp.

Pleu

rosigm

a delicatulum

Pleurosigma

sp.

Ochr

omon

as sp.

CYAN

OPHY

TA (BLUE-GREEN

ALGAE)

AnaJbaena

sp.

Aphanocapsa

delicatissima

Aphanocapsa

sp.

Aphanothece

sp.

Chro

ococ

cus

dispersus

Chroococ

cus

limneticus

Chro

ococ

cus

sp.

Dact

yloc

occo

psis

fascicularis

Dact

yloc

occo

psis

sp.

Lyngbya

limnetica

Lyngbya

nana

Wa

rsso

niel

la elegans

Osci

llat

oria

an

gust

a Os

cill

ator

ia an

gust

issi

ma

Osci

llat

oria

limnetica

Osci

llat

oria

tenuis

Osci

llat

oria

sp.

240

15.0

240

15.0

120

110

August 13

, 19

87--

Cont

inue

d

170

12.1

0

0.0

0.0

170

12.1

7.5

340

24.3

6.9

340

24.3

370

28.5

34

0 34

.0

282.

257

5.7

340

26.2

28

0 28

.0

Phormidium sp.

Syne

choc

occu

s li

near

eSy

nech

ococ

cus

sigmoidea

Syne

choc

occu

s sigmoidea

f. mi

nor

Syne

choc

occu

s sp.

14

0.9

CRYP

TOPH

YTA

(CRY

PTOM

ONAD

S)

220

13.8

140

10.0

0 0.

0 0

0.0

Chroomon

as sp.

Cryptomo

nas

eros

aCryptomo

nas

mars

onii

28

1.8

43

3.1

Cryptomo

nas

ovat

a Cryptomo

nas

rost

rata

Cryptomo

nas

rost

rati

form

is

Cryptomo

nas

sp.

Rhodomon

as mi

nuta

EUGL

ENOP

HYTA

(EUGLENOIDS)

Euglena

acus

Euglena

viri

dis

Euglena

sp.

Trac

he 1 omonas sp.

PYRRHOPHYTA

(DIN

OFLA

GELL

ATES

)Ce

rati

um hir

undi

nell

aGymnodinium

sp.

Peridinium bic

eps

Peri

dini

um in

cons

picu

aPeridinium sp.

Total

cell

s and

percent

composition

Number of

sp

ecie

sDiversity

inde

x (DI) at

sp

ecie

s le

vel

Biomass

(mg/

L dr

y we

ight

)

Chlo

roph

yll

a (pg/L)

Chlorophyll

b (pg/L)

Chlorophyll

c (|

Jg/L

)

190 0 -- -- -- 0 -- -- -- --

1,600 15

3.31 4.8 -- -- --

11.9

99

7.1

0.0

0 0.0

-- __

__

__

0.0

0 0.0

--

--

--

102

1,400

102

133.11 6.0

__ __

__

__

--

--

--

--

0 0.

0 0

0.0

__

__

__

__

0 0.

0 0

0.0

-- -- __

__

__

__

1,30

0 10

1 1,

000

101

14

143.18

3.27

81.0

76.2

__ __ --

--

--

--

ho h-«

ho

Table

15.--raxa/ nu

mber

s, and percent

composition

of phytoplankt

on at

si

tes

1 and

2 in

Ken

ney

Reservoir, wa

ter

years

1985-87--Continued

PHYLUM

ORDER

Genu

s sp

ecie

s

BACI

LLAR

IOPH

YTA

(DIATOMS)

CENTRALES

Cyclotella bo

dani

caCyclotella kutzingiana

Cycl

otel

la m

eneghiniana

Cycl

otel

la p

seudostelligera

Cyclotella st

elli

gera

Melo

sira

gr

anul

ata

var.

an

gust

issi

maMe

losi

ra italica

Melo

sira

li

rata

Melo

sira

sp

.Rhizosolenia eriensis

Step

hano

disc

us al

pinu

sSt

epha

nodi

scus

as

trea

Stephanodiscus n

iaga

rae


Step

hano

disc

us sp

.

Kenn

ey Reservoir

(sit

e 1)

2-ft

depth

Cell

s % Co

mp

2,000

34.5

200

3.4

-- 28

0.5

-- 85

1.5

57

1.0

__ __ __ >_ -- -- -- 28

0.5

Composite

(0-1

0 ft

)Cells

% Co

mp

September

1,70

0 18

.9200

2.2

-- -- 57

0.6

-- 140

1.6

-- __ __ __ -_ -- -- -- --

Kenney Re

serv

oir

(sit

e 2)

2-ft

Composite

depth

(0-1

0 ft

)Ce

lls

% Comp

Cell

s % Co

mp

3, 19

87 84

49.4

120

63.2

0 0.

0 28

14.7

--28

14.7

-- __ -- __ __ -- --

PENNALES

Achnanth

es af

fini

s Ac

hnan

thes

lanceolata


Amph

ora

perpusilla

Amphora

vene

ta

Amphora

sp.

Aste

rion

ella

formosa

Cocconeis

plac

entu

la

Cylindrotheca

gracilis

Cylindrotheca

sp.

Cyma

topl

eura

solea

1,80

031.0

1,50

0 16.7

8449.4

91

47.9

NS

Cymb

ella affinis

Cymb

ella m

inut

aCy

mbel

la m

inut

a f. latens

Cymbella minuta va

r. silesica

Cymbella sinuata

Diat

oma

anceps

Diatoma

hiem

ale

var.

mesodon

Diatoma

tenu

e var. elongation

Diatoma

vulgare

Dipl

onei

s sp

.Ep

ithe

mia

sore

xEunotia

sp.

Fragilaria capucina

Fragilaria cr

oton

ensi

sFragilaria pi

nnat

aFragilaria va

uche

riae


Gyro

sigma

spen

ceri

iHannaea

arcus

Hann

aea

arcus

var.

amphioxys

Hannaea

arcus

var.

ar

cus

Hant

zsch

ia amphioxys

Meridion c

irculare

Navicula arvensis

Navi

cula

ca

pita

taNa

vicu

la cr

ypto

ceph

ala

Navi

cula

cr

ypto

ceph

ala

var.

veneta

Navi

cula

ga

stru

mNa

vicu

la h

eufieri

Navicula lanceolata

Navi

cula

luzonensis

Navicula m

enis

culu

s var. up

sali

ensi

sNa

vicu

la m

inim

aNa

vicu

la m

inus

cula

Navi

cula

mut

ica

Navi

cula

not

haNa

vicu

la p

elli

cosa

Navicula p

upul

aNa

vicu

la radiosa

Navi

cula

radiosa

var.

tenella

147.

4

2816.5

147.4

170

1,60

0

14

2.9

27.6 2.2

1,40

015

.6

2816

.528

14.7

Table

15. Tax

a, numbers, an

d percent

composition

of phy

topl

ankt

on at

si

tes

1 an

d 2

in K

enney Re

serv

oir

, wa

ter

year

s 19

85-8

7 Continued

Kenn

ey Reservoir

(sit

e 1)

Kenney Reservoir

(sit

e 2)

2- ft

Composite

2-ft

Composite

r .

depth

(0-1

0 ft

) depth

(0-1

0 ft

) us sP

ecie

s Cells

% Comp

Cells

% Co

mp

Cell

s % Co

mp

Cell

s % Co

mp

BACILLARIOPHYTA

(DIA

TOMS

) -Continued

September

3, 1987-Continued

PENN

ALES

--Co

ntin

ued

Navi

cula

rh

ynco

ceph

ala

Navi

cula

sa

bini

ans

var.

intermedia

Navi

cula

ta

ntul

a Na

vicu

la tr

ipun

ctat

a Na

vicu

la vi

ridu

la

Navi

cula

vi

ridu

la v

ar.

avea

me

Navi

cula

viridula v

ar.

avenacea

Navi

cula

sp.

Nitz

schi

a acicularis

i-*

Nitz

schi

a communis

--

--

28

0.3

.pxNi

tzsc

hia

diss

ipat

aNi

tzsc

hia

fili

form

isNi

tzsc

hia

frustulum

Nitz

schi

a ha

ntzs

chia

na

28

0.5

28

0.3

28

16.5

28

14.7

Nitz

schi

a hu

ngar

ica

Nitz

schia

ignorata

Nitz

schi

a intermedia

--

--

--

--

--

--

7 3.7

Nitz

schi

a latens

Nitz

schi

a li

near

isNi

tzsc

hia

longissima va

r. re

vers

aNi

tzsc

hia

microcephala

Nitz

schi

a pa

lea

Nitz

schi

a pa

leac

eaNi

tzsc

hia

pusi

lla

Nitz

schi

a romana

Nitz

schi

a th

erma

lis

Nitz

schi

a tryblionella v

ar.

debilis

Nitz

schi

a sp

.

Pleu

rosi

gma

delicatalum

Rhoi

cosp

heni

a cu

rvat

aRhopalod

ia musculus

Surirella

angustata

Surirella

ovalis

Surirella

ovat

aSynedra

acus

Syne

dra

delicatissima

Syne

dra

fasc

icul

ate

Syne

dra

minu

scul

aSn

yedr

a ra

dien

sSynedra

rumpens

Synedra

rumpens

var. fa

mili

aris

Syne

dra

ulna

Synedra

ulna va

r. contracta

Synedra

ulna va

r. danica

Syne

dra

ulna var. ox

yrhy

nchu

sSy

nedr

a sp.

Thal

assi

osir

a fluviatilis

CHLOROPHYTA

(GREEN A

LGAE)

Actinastrum

hantzschii

Actinastrum

sp.


Ankistrodesmus co

nvol

utus

v.

acicul

aris



r.acicuJ

aris

Ankistrodesmus fa

lcat

us va

r. mirabilis

Carteria sp.

Chla

mydo

mona

s sp.

Chlorella

sp.

Chlo

roco

ccum

humicola

Chlo

roco

ccum

sp.

Chlo

rogo

nium

spirale

Chlo

rogo

nium

sp.

Chod

atel

la qu

adri

seta

Closterium sp.

Coccomyxa

minor

Crucigenia quadrata

851.

5330

3.7

2816.5

2814.7

280.5

280.3

2816

.5

Tabl

e 15. Taxa,

numbers, an

d pe

rcen

t co

mpos

itio

n of phytoplankt

on at

si

tes

1 and

2 in

Kenney

Reservoir, wa

ter

years

1985-87-

-Con

tinued

PHYLUM

ORDER

Genus

spec

ies

Kenn

ey Reservoir

(sit

e 1)

Composite

Cells

2-ft

depth% Comp

(0-1

0 ft

) Ce

lls

% Comp

Kenney Re

serv

oir

(sit

e 2)

2-ft

Composite

____depth

Cell

s % Comp

(0-1

0 ft

) Ce

lls

% Comp

ON

CHLO

ROPH

YTA

(GREEN ALGAE)--Continued

Dictyosphaerium

ehrenbergianum


Dict

yosphaerium

sp.

Gloeocysti

s sp.

Gole

nkin

ia ra

diat

a Go

lenk

inio

psis

solitaria

Gonium sp.

Kirc

hner

iell

a co

ntor

ta

Meso

taen

ium

sp.

Micr

atin

ium pusillum

Micratinium

sp.

Moug

eoti

a sp.

Oocy

tis

sp.

Pandorina

morum


Phacotus sp

. Pl

atym

onas

sp.

Pteromonas sp.

Scen

edes

mus

armatus

Scen

edesmu

s bi

juga

Sc

ened

esmu

s dimorphus

Scen

edes

mus

quad

rica

uda

Scen

edes

mus

serratus

Scen

edesmu

s sp.

Schroede

ria

juda

yi

Schroederia

setigera

Selenastrum minutum

Spha

eroc

ysti

s schroeteri

Staurastrum

sp.

TreuJbaria sp.

Sept

embe

r 3,

1987--Continued

571.0

140

1.6

28

14.7

110 28 28

1.2

0.3

0.3

CHRY

SOPH

YTA

(GOLDEN-BROWN

ALGAE)

Dinobryon

divergens

Keph

yrio

n spirale

Kephyrion

sp.

Mall

omonas

acaroides


Mall

omonas

gl

obos

a Ma

llom

onas

sp

. Pl

euro

sigm

a delicatulum

Pleu

rosi

gma

sp.

Ochromonas sp.

CYAN

OPHY

TA (B

LUE-

GREE

N AL

GAE)

AnaJbaena

sp.

Aphanocapsa

delicatissima

Aphanocapsa

sp.

Aphanoth

ece

sp.

Chro

ococ

cus

disp

ersu

s Ch

rooc

occu

s limneticus

Chroococ

cus

sp.

Dact

yloc

occo

psis

fascicularis


Lyng

bya

limnetica

Lyngbya

nana



Oscillatoria an

gust

issi

ma


Oscillatoria tenuis

Oscillatoria sp.

Phormidium sp.

Synechococcus

lineare

Syne

chococ

cus

sigmoidea

Syne

choc

occu

s sigmoidea

f. mi

nor

Syne

chococ

cus

sp.

CRYP

TOPH

YTA

(CRYPTOMONADS)

Chroomonas sp

. Cryptomonas

erosa

Cryp

tomo

nas

mars

onii

Cryptomo

nas

ovata

170

2.9

280.

30

0.0

0 0.0

85 85

3,400

680 28 56

1.5

0.5

1.0

28 910

140

460

0.3

1.5

58.6

11.7

--

6,5

00

850

-- 72.2

9.4

10.1

1.6

2,70

0 46

.6

4,60

0 51

.1 5.1

0 0.0

0 0.0

57

33.5

14

7.4

Tabl

e 15.--raxa, nu

mber

s, an

d percent

comp

osit

ion

of phytoplankton at

si

tes

1 and

2 in

Kenney

Reservoir, wa

ter

year

s 19

85-8

7--C

onti

nued

S3

h-»

00

PHYLUM

fTPTYITP

UK-UHiK

Genu

s spec

ies

CRYPTOPHYTA

(CRY

PTOM

ONAD

S) --Continued

Cryp

tomo

nas

rostrata

Cryp

tomo

nas

rostratiformis

Cryptomonas

sp.

Rhodomonas

minuta

EUGLENOPHYTA

(E

UGLE

NOID

S)Euglena

acus

Euglena

viri

dis

Euglena

sp.

Trachelo

mona

s sp

.

PYRRHOPHYTA

(DINOFLAGELLATES)

Cera

tium

hir

undi

nell

aGymnodinium

sp.

Peridinium b

icep

sPeridinium in

cons

picu

aPeridini

um sp

.

Total

cell

s and

percent

comp

osit

ion

Number of species

Diversity

inde

x (D

I) at sp

ecie

s level

Biomass

(mg/

L dr

y we

ight

)

Chlo

roph

yll

a (M

g/L)

Chlorophyll

b (jJg/L)

Chlorophyll

c (jJg/L)

Kenn

ey Res

ervo

ir (s

ite

1)2-

ftdepth

Cells

% Comp

__ __ 28

0.5

28

0.5

85

1.5

__ __ 85

1.5

0 0.

0-- -- __ __ --

--

5,80

0 10

0

172.

28 7.4

__ __

Comp

osit

e(0

-10

ft)

Cell

s % Co

mp

Sept

embe

r 3,

__ __ 28

0.3

430

4.8

28

0.3

__ __ 28

0.3

0 0.0

__ __

9,000

101

182.

3913.4 __ __

Kenney Re

serv

oir

(sit

e 2)

2-ft

Composite

depth

(0-1

0 ft)

Cell

s % Comp

Cell

s % Co

mp

1987

--Co

ntin

ued

__ -- -- 57

33.5

14

7.4

0 0.

0 28

14.7

__ __28

14.7

0 0.

0 0

0.0

__ __ -

170

99

190

100

5

9 --

2.25

--

3.

0527.1

--

26.5

__ --

Documents

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