Data Report - CivicWeb

2009 Lake System Health Monitoring Program

Data Report

December 2009

Prepared by

The District Municipality of

Muskoka

Planning and Economic

Development Department

With Technical Support from the Dorset Environmental Science Centre,

Ministry of the Environment

2009 Lake System Health Monitoring Program Data Report

1

Table of Contents

Purpose ......................................................................................................................................................... 2

2009 Total Phosphorus Data ......................................................................................................................... 3

2009 Secchi Depth Measurements ............................................................................................................... 4

Interpretation of Water Quality Data ........................................................................................................... 5

Sample Lake Data Sheet ................................................................................................................................ 7

2009 Lake Data Sheets .................................................................................................................................. 8

2009 Lake Joseph Monitoring Data ............................................................................................................ 92

Lake Joseph – Sampling Points ............................................................................................................... 93

2009 Land Use Survey Data Tables ........................................................................................................... 101

Benthic Macroinvertebrate Monitoring ................................................................................................... 104

2009 Aquatic Invertebrate Data Sheets .................................................................................................... 107


2

Purpose This data report contains the data collected during the 2009 Lake System Health Monitoring Program. The 2009 Lake System Health Monitoring Program Year End Report contains information on monitoring parameters and sampling procedures and is available on The District Municipality of Muskoka website at http://muskokadistrict.iwebez.com/siteengine/activepage.asp?PageID=231. Lake Data Sheets for all of the lakes monitored for recreational water quality by Muskoka are available on the Muskoka Water Web at http://www.muskokawaterweb.ca/1/1.1/Text.htm. Shoreline Land Use Survey Maps for all of the lakes surveyed to date are available on the Muskoka Water Web at http://www.muskokawaterweb.ca/1/1.1/shoreline.htm. Aquatic Invertebrate Data Sheets for all of the lakes involved in the benthic monitoring program are available on the Muskoka Water Web at http://www.muskokawaterweb.ca/1/1.1/biological.htm.

http://muskokadistrict.iwebez.com/siteengine/activepage.asp?PageID=231

http://www.muskokawaterweb.ca/1/1.1/Text.htm

http://www.muskokawaterweb.ca/1/1.1/shoreline.htm

http://www.muskokawaterweb.ca/1/1.1/biological.htm


3

Table 1: 2009 Total Phosphorus Data

Lake Name TP1 TP2 Ave TP

Lake Name

TP1 TP2 Ave TP

(µg/L) (µg/L) (µg/L)

(µg/L) (µg/L) (µg/L)

Atkins 9.0 8.4 8.7

Margaret 8.0 8.8 8.4

Bass (GR) 21.0 24.6 22.8

Mary 7.0 7.2 7.1

Bastedo 12.6 13.0 12.8

Menominee 8.0 8.4 8.2

Bearpaw 12.6 10.4 11.5

Morrison 8.2 9.2 8.7

Bigwind 5.8 6.0 5.9

Myers 8.4 8.2 8.3

Bing 5.6 5.4 5.5

Nine Mile 11.0 10.4 10.7

Black 14.6 16.0 15.3

Nutt 4.4 5.6 5.0

Brooks 4.4 4.6 4.5

Oudaze 10.0 10.0 10.0

Bruce 13.4 11.0 12.2

Oxbow 5.8 6.4 6.1

Camel 12.0 9.8 10.9

Paint 8.4 9.6 9.0

Clear (BR) 6.4 6.4 6.4

Pell 11.4 12.4 11.9

Dark 11.0 11.6 11.3

Perch 13.2 14.4 13.8

Deer 6.0 5.8 5.9

Pine (BR) 7.4 7.8 7.6

Devine 11.8 11.2 11.5

Pine (GR) 7.8 8.6 8.2

Fawn 19.6 19.6 19.6

Prospect 6.8 6.8 6.8

Flatrock 8.2 7.4 7.8

Riley 15.4 15.4 15.4

Galla 10.0 7.4 8.7

Rose 9.8 10.4 10.1

Gibson - North 11.0 8.6 9.8

Rosseau - Brackenrig Bay 11.2 13.4 12.3

Gibson - South 11.4 13.6 12.5

Rosseau - East Portage Bay 6.4 6.4 6.4

Grindstone 16.6 16.8 16.7

Rosseau - Main 6.2 5.8 6.0

Gullwing 12.2 15.2 13.7

Rosseau - North 11.0 9.6 10.3

Halfway 15.6 15.8 15.7

Rosseau - Skeleton Bay 10.4 7.8 9.1

Heney 4.4 4.6 4.5

Shoe 7.0 6.6 6.8

Hesner's 8.0 10.8 9.4

Siding 14.2 13.4 13.8

Joseph - Cox Bay 5.0 6.2 5.6

Silver (GR) 15.0 15.2 15.1

Joseph - Hamer Bay 4.2 4.0 4.1

Silver (ML) 5.8 6.4 6.1

Joseph - Joseph River 8.4 7.4 7.9

Six Mile - Cedar Nook Bay 10.2 8.2 9.2

Joseph - Little Lake Joseph 5.8 6.2 6.0

Six Mile - Main 8.6 8.4 8.5

Joseph - Main 3.6 3.8 3.7

Six Mile – Prov. Park Bay 8.4 7.8 8.1

Joseph - North 3.2 3.2 3.2

Solitaire 5.8 6.4 6.1

Joseph - South 12.4 10.2 11.3

Sunny 8.2 8.2 8.2

Lake of Bays - Dwight Bay 8.2 9.2 8.7

Tadenac 9.0 7.6 8.3

Lake of Bays - Haystack Bay 4.4 4.0 4.2

Tadenac Bay 5.6 8.0 6.8

Lake of Bays - Rat Bay 9.0 9.2 9.1

Tasso 12.6 12.4 12.5

Lake of Bays - S Muskoka River Bay 3.8 4.2 4.0

Thinn 11.2 10.8 11.0

Lake of Bays - South Portage Bay 6.4 6.2 6.3

Tucker 6.2 4.2 5.2

Lake of Bays - Ten Mile Bay 7.8 5.2 6.5

Turtle 8.2 7.8 8.0

Lake of Bays - Trading Bay 6.6 5.6 6.1

Waseosa 7.4 7.8 7.6

Leonard 6.4 6.4 6.4

Wildcat 4.0 4.2 4.1

Little Go-Home Bay 11.8 12.0 11.9

Wolfkin 11.6 11.0 11.3

Longline 8.8 8.6 8.7

Wood 6.0 6.0 6.0

Mainhood 9.0 10.6 9.8


4

Table 2: 2009 Secchi Depth Measurements

Lake Name May

Secchi (m)

Aug Secchi

(m)

Ave Secchi

(m)

Lake Name May

Secchi (m)

Aug Secchi

(m)

Ave Secchi

(m)

Atkins 2.5 3.8 3.1

Margaret 7.0 12.0 9.5

Bass (GR) 1.5 1.9 1.7

Mary 3.0 3.1 3.1

Bastedo 4.1 5.5 4.8

Menominee 2.0 3.0 2.5

Bearpaw 1.5 1.3 1.4

Morrison 3.0 3.7 3.3

Bigwind 4.5 6.0 5.3

Myers 3.0 4.0 3.5

Bing 3.0 5.5 4.3

Nine Mile 2.5 3.0 2.8

Black 2.0 2.5 2.3

Nutt 4.8 5.5 5.1

Brooks 4.0 3.8 3.9

Oudaze 2.2 2.5 2.4

Bruce 4.0 5.5 4.8

Oxbow 5.0 3.8 4.4

Camel 3.5 5.0 4.3

Paint 2.5 3.3 2.9

Clear (BR) 4.5 7.5 6.0

Pell 2.5 2.5 2.5

Dark 4.0 4.8 4.4

Perch 1.4 1.5 1.5

Deer 5.0 6.0 5.5

Pine (BR) 3.3 4.6 4.0

Devine 2.5 3.0 2.8

Pine (GR) 3.4 3.3 3.3

Fawn 1.6 1.5 1.6

Prospect 3.0 4.0 3.5

Flatrock 3.8 4.5 4.1

Riley 1.6 3.0 2.3

Galla 4.3 4.5 4.4

Rose 2.0 2.0 2.0

Gibson - North 2.5 3.5 3.0

Rosseau - Brackenrig Bay 2.5 4.3 3.4

Gibson - South 2.2 2.5 2.4

Rosseau - East Portage Bay 4.8 5.8 5.3

Grindstone 3.0 5.5 4.3

Rosseau - Main 5.0 5.5 5.3

Gullwing 2.5 3.3 2.9

Rosseau - North 4.0 5.0 4.5

Halfway 1.8 2.0 1.9

Rosseau - Skeleton Bay 3.5 6.0 4.8

Heney 5.0 4.0 4.5

Shoe 5.8 6.0 5.9

Hesner's 2.8 4.3 3.5

Siding 1.2 1.3 1.2

Joseph - Cox Bay 5.5 6.5 6.0

Silver (GR) 2.5 3.0 2.8

Joseph - Hamer Bay 8.0 8.5 8.3

Silver (ML) 5.0 7.0 6.0

Joseph - Joseph River 3.5 6.0 4.8

Six Mile - Cedar Nook Bay 5.0 6.0 5.5

Joseph - Little Lake Joseph 4.0 7.0 5.5

Six Mile - Main 4.0 9.5 6.8

Joseph - Main 9.0 8.0 8.5

Six Mile – Prov. Park Bay 5.0 7.0 6.0

Joseph - North 9.0 7.8 8.4

Solitaire 5.3 6.3 5.8

Joseph - South 6.0 7.5 6.8

Sunny 3.3 3.3 3.3

Lake of Bays - Dwight Bay 3.6 5.0 4.3

Tadenac 3.5 5.0 4.3

Lake of Bays - Haystack Bay 5.0 6.0 5.5

Tadenac Bay 4.5 6.0 5.3

Lake of Bays - Rat Bay 3.0 5.0 4.0

Tasso 5.5 6.3 5.9

Lake of Bays - S Muskoka River Bay 6.6 7.0 6.8

Thinn 2.1 4.1 3.1

Lake of Bays - South Portage Bay 5.0 5.3 5.1

Tucker 8.0 8.0 8.0

Lake of Bays - Ten Mile Bay 5.0 6.0 5.5

Turtle 4.3 3.5 3.9

Lake of Bays - Trading Bay 5.5 5.5 5.5

Waseosa 2.5 3.8 3.1

Leonard 4.2 4.7 4.5

Wildcat 3.0 3.0 3.0

Little Go-Home Bay 5.5 6.0 5.8

Wolfkin 2.0 6.3 4.1

Longline 5.8 7.0 6.4

Wood 3.5 5.1 4.3

Mainhood 3.8 4.5 4.1


5

Interpretation of Water Quality Data 1. Spring phosphorus

Phosphorus is the nutrient that controls the growth of algae in most Ontario lakes. For this reason, any increase in phosphorus in a lake will tend to increase the quantity of algae that can grow. High levels of phosphorus can lead to algal blooms that detract from recreational water quality and in some cases affects the habitat of coldwater fish species such as lake trout. A sensitivity rating is given to each lake in Muskoka based on the lake’s responsiveness to phosphorus inputs and the mobility of phosphorus within the lake’s watershed. A lake can have either a low, moderate or high sensitivity to phosphorus. Phosphorus samples are collected in the spring during a period called “spring turnover”. This is the best time to sample for phosphorus because the lake is completely mixed and a water sample represents the phosphorus concentration throughout the whole lake. By sampling spring phosphorus each year it is possible to detect a change in the nutrient status of a lake. Several years of data must be collected to first observe the normal, between-year-differences, before a trend can be identified. Phosphorus enters a lake naturally through sediment and precipitation. Human inputs of phosphorus enter a lake primarily through surface runoff from sources such as septic system seepage, lawn fertilizer runoff, agricultural runoff and municipal wastewater.

Lakes with phosphorus concentrations below 10 micrograms per litre (g/L) are considered

oligotrophic or unenriched. Those with a phosphorus concentration falling between 11 and 20 g/L are termed mesotrophic or moderately enriched, while lakes with a phosphorus concentration

exceeding 20 g/L are called eutrophic and are considered enriched. Each lake has a threshold concentration, which is equal to the background level of phosphorus plus an additional 50%. If a lake’s measured and modelled (value calculated using a water quality model) phosphorus concentrations over a 10-year period are greater than its threshold value, then the lake is considered “over threshold” and actions will be initiated to reduce the amount of phosphorus entering the lake from its watershed. A lake that is over threshold can be de-listed after three consecutive phosphorus measurements are below its threshold value.

2. Secchi depth measurements

Secchi depth is a measurement of water clarity. In Muskoka, the major determinant of water clarity may be either natural colour or an increase in nutrient input from the surrounding watershed.


6

A lake may naturally be a brown colour due to high levels of dissolved organic carbon (DOC) that comes from the wetlands in a watershed. DOC colours lakes brown and reduces water clarity, but is not an indication of nutrient enrichment. Examples of lakes with naturally high DOC content include Brandy Lake and Tea Lake. Water clarity can also decrease as nutrients from the surrounding watershed enter and enrich the lake, resulting in high levels of suspended sediments or algal growth. Water clarity can change weekly or yearly as a result of weather, length of winter ice cover, shoreline development, natural seasonal trends or other impacts. However, when the primary determinant of water clarity is a function of nutrient enrichment, a long-term trend that indicates a reduction in water clarity is an indication of reduced water quality.

In general, where a lake is not coloured by DOC, the higher the Secchi depth reading, the clearer the lake and the less nutrients it contains. Lakes with Secchi depth measurements over five metres are considered oligotrophic or unenriched. Those with a Secchi depth measurement falling between three and five metres are termed mesotrophic or moderately enriched, while lakes with a Secchi depth measurement below three metres are called eutrophic and are considered enriched.

3. Temperature and dissolved oxygen measurements Temperature is a measure of the intensity of heat stored in a volume of water. Temperature patterns affect the solubility of many chemical compounds and influences the effects of pollution on aquatic life. Dissolved oxygen is a measure of the concentration of oxygen dissolved in water. Adequate concentrations of dissolved oxygen are necessary for the survival of fish and other aquatic organisms. Dissolved oxygen concentration is an indicator of a lake’s ability to support aquatic life. Dissolved oxygen levels above five milligrams per litre (mg/L) are considered optimal for most aquatic organisms. Most fish cannot survive if levels fall below 3 mg/L. For coldwater species, such

as lake trout, a minimum of 6 mg/L is needed, along with a temperature below 10C. Lakes with dissolved oxygen readings below 0.5 mg/L are considered anoxic.


7

Sample Lake Data Sheet

Current 10-year

average for phosphorus. This

value should remain below the Threshold Value

shown on the graph below.

Sensitivity of the lake to phosphorus based on the lake’s responsiveness to phosphorus

inputs and the mobility of phosphorus within the watershed. Thermocline –

where the water temperature

drops quickly.

Threshold = background level of phosphorus +

50%. A lake is considered “over threshold” (OT) if the measured long term

average and modeled phosphorus

concentrations are both above this value. An OT

lake can be de-listed after 3 consecutive

phosphorus measurements are below its threshold

value.

Background = the estimated concentration of phosphorus from natural sources i.e. the concentration of phosphorus

present if there was no development on the lake.

Phosphorus and Secchi depth measurements over

time. An increase in phosphorus usually results

in a decrease in Secchi depth and vice versa.

Lake trout lakes are managed by the Ministry of Natural Resources

to ensure adequate dissolved oxygen concentrations. At Capacity

(AC) lakes may be subject to development restrictions.


8

2009 Lake Data Sheets

The District Municipality of Muskoka


9

Atkins Lake

Municipality: Bracebridge Watershed: Muskoka River

Surface Area: 0.13 km2

Watershed Area (excluding lake): 1.59 km2

Maximum Depth: 13 m Lake Trout Lake? No

Wetland Area: 5 % Secchi Depth (10-year average): 3.8 m

Phosphorus (10-year average 2000-2009): 8.6 g/L Sensitivity: Low

0

2

4

6

8

10

12

0 5 10 15 20

De

pth

(m)

May 2009

Temperature (°C) Dissolved Oxygen (mg/L)

0

2

4

6

8

10

12

0 5 10 15 20 25 30

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

1980 1985 1990 1995 2000 2005 2010 2015

Atkins LakeLong Term Monitoring Data

Secchi Depth (m) Phosphorus (ug/L)

Background = 6.9 ug/L

Threshold = 10.3 ug/L


10

Bass Lake

Municipality: Gravenhurst Watershed: Sparrow Lake





Phosphorus (10-year average 2000-2009): 22.7 g/L Sensitivity: Moderate

0

1

2

3

4

5

6

0 2 4 6 8 10 12 14 16 18

De

pth

(m)

May 2009


0

1

2

3

4

5

6

0 5 10 15 20 25 30

De

pth

(m)

August 2009


0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

1975 1980 1985 1990 1995 2000 2005 2010 2015

Bass LakeLong Term Monitoring Data

Secchi Disc (m) Spring Phosphorus (ug/L)




11

Bastedo Lake

Municipality: Muskoka Lakes Watershed: Musquash River






0

1

2

3

4

5

6

7

8

9

0 2 4 6 8 10 12 14 16 18

De

pth

(m)

May 2009


0

1

2

3

4

5

6

7

8

9

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

1980 1985 1990 1995 2000 2005 2010 2015

Bastedo LakeLong Term Monitoring Data





12

Bearpaw Lake

Municipality: Gravenhurst Watershed: Morrison Lake





Phosphorus (10 year average 2000-2009): 14.2 g/L Sensitivity: Moderate

0

1

2

3

4

5

6

7

8

9

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

1

2

3

4

5

6

7

8

9

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

20.0

1985 1990 1995 2000 2005 2010 2015

Bearpaw LakeLong Term Monitoring Data





13

Bigwind Lake




Maximum Depth: 36 m Lake Trout Lake? Yes (AC)



0

5

10

15

20

25

30

35

40

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

5

10

15

20

25

30

35

40

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

1992 1994 1996 1998 2000 2002 2004 2006 2008 2010

Bigwind LakeLong Term Monitoring Data





14

Bing Lake

Municipality: Huntsville Watershed: Lake Vernon






0

1

2

3

4

5

6

7

8

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

1

2

3

4

5

6

7

8

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010

Bing LakeLong Term Monitoring Data





15

Black Lake

Municipality: Muskoka Lakes Watershed: Lake Muskoka






0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

0 2 4 6 8 10 12 14 16 18

De

pth

(m)

May 2009


0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

0 5 10 15 20 25 30

De

pth

(m)

August 2009


0.0

5.0

10.0

15.0

20.0

25.0

30.0

1980 1985 1990 1995 2000 2005 2010 2015

Black LakeLong Term Monitoring Data





16

Brooks Lake

Municipality: Lake of Bays Watershed: Dwight Bay





Phosphorus (10-year average 2000-2009): 8.0 g/L Sensitivity: Moderate (OT)

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Brooks LakeLong Term Monitoring Data




Interim Provincial Water Quality Objective for total Phosphorus = 10 ug/L


17

Bruce Lake

Municipality: Muskoka Lakes Watershed: Lake Joseph






0

1

2

3

4

5

6

7

8

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

1

2

3

4

5

6

7

8

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

20.0

1980 1985 1990 1995 2000 2005 2010 2015

Bruce LakeLong Term Monitoring Data





18

Camel Lake

Municipality: Muskoka Lakes Watershed: Lake Rosseau






0

2

4

6

8

10

12

14

0 5 10 15 20 25

De

pth

(m)

August 2009


0

2

4

6

8

10

12

14

0 2 4 6 8 10 12 14 16 18

De

pth

(m)

May 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

1980 1985 1990 1995 2000 2005 2010 2015

Camel LakeLong Term Monitoring Data





19

Clear Lake

Municipality: Bracebridge Watershed: Black River






0

5

10

15

20

25

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

5

10

15

20

25

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

1980 1985 1990 1995 2000 2005 2010 2015

Clear LakeLong Term Monitoring Data





20

Dark Lake







0

2

4

6

8

10

12

0 2 4 6 8 10 12 14 16 18

Dp

eth

(m)

May 2009


0

2

4

6

8

10

12

0 5 10 15 20 25 30

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

1975 1980 1985 1990 1995 2000 2005 2010 2015

Dark LakeLong Term Monitoring Data






21

Deer Lake

Municipality: Gravenhurst Watershed: Lake Muskoka




Wetland Area: 3.72 % Secchi Depth (10-year average): 5.4 m

Phosphorus (10-year average 2000-2009): 6.4 g/L Sensitivity: High

0

2

4

6

8

10

12

0 5 10 15 20

De

pth

(m)

May 2009


0

2

4

6

8

10

12

0 5 10 15 20 25 30

De

pth

(m)

August 2009


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Deer LakeLong Term Monitoring Data





22

Devine Lake

Municipality: Huntsville Watershed: Muskoka River






0

1

2

3

4

5

6

7

8

9

10

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

1

2

3

4

5

6

7

8

9

10

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

1980 1985 1990 1995 2000 2005 2010 2015

Devine LakeLong Term Monitoring Data





23

Fawn (Deer) Lake







0

1

2

3

4

5

6

7

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

1

2

3

4

5

6

7

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

5.0

10.0

15.0

20.0

25.0

30.0

1985 1990 1995 2000 2005 2010

Fawn LakeLong Term Monitoring Data





24

Flatrock Lake

Municipality: Georgian Bay Watershed: Musquash River






0

2

4

6

8

10

12

14

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

2

4

6

8

10

12

14

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Flatrock LakeLong Term Monitoring Data






25

Galla Lake

Municipality: Georgian Bay Watershed: West






0

1

2

3

4

5

6

7

8

9

0 2 4 6 8 10 12 14 16 18

De

pth

(m)

May 2009


0

1

2

3

4

5

6

7

8

9

0 5 10 15 20 25 30

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

1980 1985 1990 1995 2000 2005 2010 2015

Galla LakeLong Term Monitoring Data





26

Gibson Lake - North







0

2

4

6

8

10

12

14

16

0 2 4 6 8 10 12 14 16 18

De

pth

(m)

May 2009


0

2

4

6

8

10

12

14

16

0 5 10 15 20 25 30

De

pth

(m)

August 2009


0.0

5.0

10.0

15.0

20.0

25.0

1975 1980 1985 1990 1995 2000 2005 2010 2015

Gibson Lake - NorthLong Term Monitoring Data





27

Gibson Lake - South







0

2

4

6

8

10

12

14

16

18

0 2 4 6 8 10 12 14 16 18

De

pth

(m)

May 2009


0

2

4

6

8

10

12

14

16

18

0 5 10 15 20 25 30

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

20.0

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010

Gibson Lake - SouthLong Term Monitoring Data





28

Grindstone Lake

Municipality: Lake of Bays Watershed: Black River






0

5

10

15

20

25

30

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

5

10

15

20

25

30

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

5.0

10.0

15.0

20.0

25.0

1992 1994 1996 1998 2000 2002 2004 2006 2008 2010

Grindstone LakeLong Term Monitoring Data





29

Gullwing Lake







0

1

2

3

4

5

6

7

8

9

0 2 4 6 8 10 12 14 16 18

De

pth

(m)

May 2009


0

1

2

3

4

5

6

7

8

9

0 5 10 15 20 25 30

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

1980 1985 1990 1995 2000 2005 2010 2015

Gullwing LakeLong Term Monitoring Data





30

Halfway Lake







0

0.5

1

1.5

2

2.5

3

3.5

0 2 4 6 8 10 12 14 16 18

De

pth

(m)

May 2009


0

0.5

1

1.5

2

2.5

3

3.5

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

5.0

10.0

15.0

20.0

25.0

1980 1985 1990 1995 2000 2005 2010 2015

Halfway LakeLong Term Monitoring Data





31

Heney Lake

Municipality: Lake of Bays Watershed: Muskoka River






0

1

2

3

4

5

6

7

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

1

2

3

4

5

6

7

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

1980 1985 1990 1995 2000 2005 2010 2015

Heney LakeLong Term Monitoring Data





32

Hesner’s Lake

Municipality: Muskoka Lakes Watershed: Moon River






0

1

2

3

4

5

6

7

8

9

0 2 4 6 8 10 12 14 16 18

De

pth

(m)

May 2009


0

1

2

3

4

5

6

7

8

0 5 10 15 20 25 30

De

pth

(m)

August 2009


0.0

5.0

10.0

15.0

20.0

25.0

30.0

1980 1985 1990 1995 2000 2005 2010 2015

Hesner's LakeLong Term Monitoring Data





33

Lake Joseph – Cox Bay

Municipality: Muskoka Lakes Watershed: Lake Joseph/Lake Rosseau



Maximum Depth: 12 m Lake Trout Lake? Yes



0

2

4

6

8

10

12

14

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

2

4

6

8

10

12

14

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

1994 1996 1998 2000 2002 2004 2006 2008 2010

Lake Joseph - Cox BayLong Term Monitoring Data






34

Lake Joseph – Hamer Bay







0

5

10

15

20

25

30

35

40

45

50

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

5

10

15

20

25

30

35

40

45

50

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

2007 2008 2009 2010

Lake Joseph - Hamer BayLong Term Monitoring Data





35

Lake Joseph – Joseph River

Municipality: Muskoka Lakes Watershed: Lake Joseph/Lake Rosseau






0

1

2

3

4

5

6

7

8

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

1

2

3

4

5

6

7

8

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

2002 2003 2004 2005 2006 2007 2008 2009 2010

Joseph RiverLong Term Monitoring Data





36

Lake Joseph – Little Lake Joseph

Municipality: Seguin Watershed: Lake Joseph






0

5

10

15

20

25

30

35

40

45

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

5

10

15

20

25

30

35

40

45

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

1994 1996 1998 2000 2002 2004 2006 2008 2010

Little Lake JosephLong Term Monitoring Data





37

Lake Joseph – Main







0

10

20

30

40

50

60

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

10

20

30

40

50

60

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

1994 1996 1998 2000 2002 2004 2006 2008 2010

Lake Joseph - MainLong Term Monitoring Data





38

Lake Joseph – North







0

10

20

30

40

50

60

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

10

20

30

40

50

60

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

2007 2008 2009 2010

Lake Joseph - NorthLong Term Monitoring Data





39

Lake Joseph – South







0

5

10

15

20

25

30

35

40

45

50

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

5

10

15

20

25

30

35

40

45

50

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

2007 2008 2009 2010

Lake Joseph - SouthLong Term Monitoring Data



Background = 2.3ug/L


40

Lake of Bays – Dwight Bay

Municipality: Lake of Bays Watershed: Lake of Bays






0

5

10

15

20

25

30

35

40

45

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

5

10

15

20

25

30

35

40

45

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

1980 1985 1990 1995 2000 2005 2010

Lake of Bays - Dwight BayLong Term Monitoring Data





41

Lake of Bays – Haystack Bay







0

5

10

15

20

25

30

35

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

5

10

15

20

25

30

35

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

1992 1994 1996 1998 2000 2002 2004 2006 2008 2010

Lake of Bays - Haystack BayLong Term Monitoring Data





42

Lake of Bays – Rat Bay







0

1

2

3

4

5

6

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

1

2

3

4

5

6

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

1992 1994 1996 1998 2000 2002 2004 2006 2008 2010

Lake of Bays - Rat BayLong Term Monitoring Data





43

Lake of Bays – South Muskoka River Bay





Wetland Area: 10.19% Secchi Depth (10-year average): 6.0 m


0

5

10

15

20

25

30

35

40

45

50

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

5

10

15

20

25

30

35

40

45

50

0 5 10 15 20 25 30

De

pth

(m)

August 2009


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Lake of Bays - South Muskoka River BayLong Term Monitoring Data





44

Lake of Bays – South Portage Bay


Surface Area: 1.76km2





0

5

10

15

20

25

30

35

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

5

10

15

20

25

30

35

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

1992 1994 1996 1998 2000 2002 2004 2006 2008 2010

Lake of Bays - South Portage BayLong Term Monitoring Data





45

Lake of Bays – Ten Mile Bay







0

5

10

15

20

25

30

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

5

10

15

20

25

30

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

1992 1994 1996 1998 2000 2002 2004 2006 2008 2010

Lake of Bays - Ten Mile BayLong Term Monitoring Data





46

Lake of Bays – Trading Bay







0

5

10

15

20

25

30

35

40

45

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

5

10

15

20

25

30

35

40

45

0 5 10 15 20 25 30

De

pth

(m)

August 2009


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

1980 1985 1990 1995 2000 2005 2010 2015

Lake of Bays - Trading BayLong Term Monitoring Data





47

Leonard Lake







0

2

4

6

8

10

12

14

16

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

2

4

6

8

10

12

14

16

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

1985 1990 1995 2000 2005 2010 2015

Leonard LakeLong Term Monitoring Data






48

Little Go-Home Bay







0

1

2

3

4

5

6

7

8

0.0 5.0 10.0 15.0 20.0

De

pth

(m)

May 2009


0

1

2

3

4

5

6

7

8

0 5 10 15 20 25 30

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Little Go-Home BayLong Term Monitoring Data





49

Longline Lake







0

2

4

6

8

10

12

14

16

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

2

4

6

8

10

12

14

16

0 5 10 15 20 25 30

De

pth

(m)

August 2009


0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

40.0

45.0

50.0

1980 1985 1990 1995 2000 2005 2010 2015

Longline LakeLong Term Monitoring Data




Interim Provincial Water Quality Objective for total phosphorus = 10 ug/L


50

Mainhood Lake







0

2

4

6

8

10

12

14

16

0 2 4 6 8 10 12 14 16 18

De

pth

(m)

May 2009


0

2

4

6

8

10

12

14

16

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

5.0

10.0

15.0

20.0

25.0

1980 1985 1990 1995 2000 2005 2010 2015

Mainhood LakeLong Term Monitoring Data





51

Margaret Lake







0

5

10

15

20

25

30

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

5

10

15

20

25

30

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

1975 1980 1985 1990 1995 2000 2005 2010 2015

Margaret LakeLong Term Monitoring Data





52

Mary Lake

Municipality: Huntsville Watershed: Mary Lake






0

10

20

30

40

50

60

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

10

20

30

40

50

60

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

1980 1985 1990 1995 2000 2005 2010 2015

Mary LakeLong Term Monitoring Data





53

Menominee Lake







0

1

2

3

4

5

6

7

8

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

1

2

3

4

5

6

7

8

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

1994 1996 1998 2000 2002 2004 2006 2008 2010

Menominee LakeLong Term Monitoring Data





54

Morrison Lake







0

2

4

6

8

10

12

14

16

18

0 2 4 6 8 10 12 14 16 18

De

pth

(m)

May 2009


0

2

4

6

8

10

12

14

16

18

0 5 10 15 20 25 30

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

1980 1985 1990 1995 2000 2005 2010 2015

Morrison LakeLong Term Monitoring Data





55

Myers (Butterfly) Lake

Municipality: Georgian Bay Watershed: Moon River





Phosphorus (10-year average 2000-2009): 8.3 g/L Sensitivity: High (OT)

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

0 2 4 6 8 10 12 14 16 18

De

pth

(m)

May 2009


0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

1996 1998 2000 2002 2004 2006 2008 2010

Myers LakeLong Term Monitoring Data






56

Nine Mile Lake

Municipality: Muskoka Lakes Watershed: Musquash River






0

2

4

6

8

10

12

14

16

18

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

2

4

6

8

10

12

14

16

18

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

5.0

10.0

15.0

20.0

25.0

1975 1980 1985 1990 1995 2000 2005 2010 2015

Nine Mile LakeLong Term Monitoring Data





57

Nutt (Mud) Lake







0

1

2

3

4

5

6

7

8

9

0 2 4 6 8 10 12 14 16 18

De

pth

(m)

May 2009


0

1

2

3

4

5

6

7

8

9

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

1980 1985 1990 1995 2000 2005 2010 2015

Nutt LakeLong Term Monitoring Data






58

Oudaze Lake







0

5

10

15

20

25

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

5

10

15

20

25

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

1975 1980 1985 1990 1995 2000 2005 2010 2015

Oudaze LakeLong Term Monitoring Data





59

Oxbow Lake







0

5

10

15

20

25

30

35

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

5

10

15

20

25

30

35

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

1975 1980 1985 1990 1995 2000 2005 2010 2015

Oxbow LakeLong Term Monitoring Data





60

Paint (St. Mary) Lake

Municipality: Lake of Bays Watershed: Trading Bay






0

2

4

6

8

10

12

14

16

18

20

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

2

4

6

8

10

12

14

16

18

20

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

1980 1985 1990 1995 2000 2005 2010 2015

Paint LakeLong Term Monitoring Data





61

Pell Lake







0

0.5

1

1.5

2

2.5

0 2 4 6 8 10 12 14 16 18

De

pth

(m)

May 2009


0

0.5

1

1.5

2

2.5

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

2003 2004 2005 2006 2007 2008 2009 2010

Pell LakeLong Term Monitoring Data





62

Perch Lake







0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

5.0

10.0

15.0

20.0

25.0

30.0

1975 1980 1985 1990 1995 2000 2005 2010 2015

Perch LakeLong Term Monitoring Data





63

Pine Lake







0

5

10

15

20

25

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

5

10

15

20

25

0 5 10 15 20 25 30

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

1980 1985 1990 1995 2000 2005 2010 2015

Pine LakeLong Term Monitoring Data






64

Pine Lake







0

2

4

6

8

10

12

0 5 10 15 20

De

pth

(m)

May 2009


0

2

4

6

8

10

12

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

1985 1990 1995 2000 2005 2010 2015

Pine LakeLong Term Monitoring Data





65

Prospect Lake

Municipality: Bracebridge Watershed: Sparrow Lake






0

2

4

6

8

10

12

14

16

18

20

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

2

4

6

8

10

12

14

16

18

20

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

1980 1985 1990 1995 2000 2005 2010 2015

Prospect LakeLong Term Monitoring Data





66

Riley Lake

Municipality: Gravenhurst Watershed: Black River






0

2

4

6

8

10

12

14

16

0 5 10 15 20

De

pth

(m)

May 2009


0

2

4

6

8

10

12

14

16

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

5.0

10.0

15.0

20.0

25.0

1985 1990 1995 2000 2005 2010 2015

Riley LakeLong Term Monitoring Data





67

Rose Lake







0

2

4

6

8

10

12

0 2 4 6 8 10 12 14 16 18

De

pth

(m)

May 2009


0

2

4

6

8

10

12

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

5.0

10.0

15.0

20.0

25.0

30.0

1992 1994 1996 1998 2000 2002 2004 2006 2008 2010

Rose LakeLong Term Monitoring Data





68

Lake Rosseau – Brackenrig Bay







0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

1994 1996 1998 2000 2002 2004 2006 2008 2010

Lake Rosseau - Brackenrig BayLong Term Monitoring Data






69

Lake Rosseau – East Portage Bay







0

2

4

6

8

10

12

14

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

2

4

6

8

10

12

14

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

1996 1998 2000 2002 2004 2006 2008 2010

Lake Rosseau - East Portage BayLong Term Monitoring Data






70

Lake Rosseau – Main







0

5

10

15

20

25

30

35

40

45

50

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

5

10

15

20

25

30

35

40

45

50

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

1985 1990 1995 2000 2005 2010 2015

Lake Rosseau - MainLong Term Monitoring Data





71

Lake Rosseau – North

Municipality: Muskoka Lakes/Seguin Watershed: Lake Rosseau






0

10

20

30

40

50

60

70

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

10

20

30

40

50

60

70

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

2007 2008 2009 2010

Lake Rosseau - NorthLong Term Monitoring Data





72

Lake Rosseau – Skeleton Bay







0

5

10

15

20

25

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

5

10

15

20

25

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Lake Rosseau - Skeleton BayLong Term Monitoring Data





73

Shoe Lake







0

2

4

6

8

10

12

14

16

18

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

2

4

6

8

10

12

14

16

18

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

1980 1985 1990 1995 2000 2005 2010 2015

Shoe LakeLong Term Monitoring Data





74

Siding Lake







0

0.5

1

1.5

2

2.5

3

3.5

0 2 4 6 8 10 12 14 16 18

De

pth

(m)

May 2009


0

0.5

1

1.5

2

2.5

3

3.5

0 5 10 15 20 25 30

De

pth

(m)

August 2009


0.0

5.0

10.0

15.0

20.0

25.0

30.0

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010

Siding LakeLong Term Monitoring Data





75

Silver Lake







0

2

4

6

8

10

12

14

16

18

20

0 2 4 6 8 10 12 14 16 18

De

pth

(m)

May 2009


0

2

4

6

8

10

12

14

16

18

20

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

1975 1980 1985 1990 1995 2000 2005 2010 2015

Silver LakeLong Term Monitoring Data





76

Silver Lake







0

2

4

6

8

10

12

14

0 5 10 15 20

De

pth

(m)

May 2009


0

2

4

6

8

10

12

14

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

1992 1994 1996 1998 2000 2002 2004 2006 2008 2010

Silver LakeLong Term Monitoring Data






77

Six Mile Lake – Cedar Nook Bay







0

2

4

6

8

10

12

14

16

18

20

0 5 10 15 20

De

pth

(m)

May 2009


0

2

4

6

8

10

12

14

16

18

20

0 5 10 15 20 25 30

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Six Mile Lake - Cedar Nook BayLong Term Monitoring Data






78

Six Mile Lake – Main







0

5

10

15

20

25

30

35

40

45

50

0 2 4 6 8 10 12 14 16 18

De

pth

(m)

May 2009


0

5

10

15

20

25

30

35

40

45

50

0 5 10 15 20 25 30

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

1992 1994 1996 1998 2000 2002 2004 2006 2008 2010

Six Mile Lake - MainLong Term Monitoring Data





79

Six Mile Lake – Provincial Park Bay







0

1

2

3

4

5

6

7

8

0 2 4 6 8 10 12 14 16 18

De

pth

(m)

May 2009


0

1

2

3

4

5

6

7

8

0 5 10 15 20 25 30

De

pth

(m)

August 2009


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Six Mile Lake - Provincial Park BayLong Term Monitoring Data






80

Solitaire Lake

Municipality: Lake of Bays Watershed: Lake Vernon






0

5

10

15

20

25

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

5

10

15

20

25

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010

Solitaire LakeLong Term Monitoring Data





81

Sunny Lake

Municipality: Gravenhurst Watershed: Sparrow Lake






0

2

4

6

8

10

12

14

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

2

4

6

8

10

12

14

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

1980 1985 1990 1995 2000 2005 2010 2015

Sunny LakeLong Term Monitoring Data





82

Tadenac Bay







0

5

10

15

20

25

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

5

10

15

20

25

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

1980 1985 1990 1995 2000 2005 2010 2015

Tadenac BayLong Term Monitoring Data





83

Tadenac Lake







0

5

10

15

20

25

30

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

5

10

15

20

25

30

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

1980 1985 1990 1995 2000 2005 2010 2015

Tadenac LakeLong Term Monitoring Data





84

Tasso Lake

Municipality: Lake of Bays Watershed: Lake Vernon






0

2

4

6

8

10

12

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

2

4

6

8

10

12

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

1975 1980 1985 1990 1995 2000 2005 2010 2015

Tasso LakeLong Term Monitoring Data





85

Thinn Lake

Municipality: Bracebridge Watershed: Lake Muskoka






0

2

4

6

8

10

12

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

2

4

6

8

10

12

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

1992 1994 1996 1998 2000 2002 2004 2006 2008 2010

Thinn LakeLong Term Monitoring Data





86

Tucker Lake







0

2

4

6

8

10

12

14

16

18

20

0 5 10 15 20 25

De

pth

(m)

August 2009


0

2

4

6

8

10

12

14

16

18

20

0 2 4 6 8 10 12 14 16 18

De

pth

(m)

May 2009


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Tucker LakeLong Term Monitoring Data





87

Turtle Lake







0

1

2

3

4

5

6

0 2 4 6 8 10 12 14 16 18

De

pth

(m)

May 2009


0

1

2

3

4

5

6

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

20.0

1980 1985 1990 1995 2000 2005 2010 2015

Turtle LakeLong Term Monitoring Data






88

Lake Waseosa







0

2

4

6

8

10

12

14

16

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

2

4

6

8

10

12

14

16

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

1980 1985 1990 1995 2000 2005 2010 2015

Lake WaseosaLong Term Monitoring Data





89

Wildcat Lake

Municipality: Lake of Bays Watershed: Muskoka River






0

0.5

1

1.5

2

2.5

3

3.5

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

0.5

1

1.5

2

2.5

3

3.5

0 5 10 15 20 25 30

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

1980 1985 1990 1995 2000 2005 2010 2015

Wildcat LakeLong Term Monitoring Data





90

Wolfkin Lake

Municipality: Lake of Bays Watershed: Trading Bay






0

1

2

3

4

5

6

7

8

9

0 2 4 6 8 10 12 14

De

pth

(m)

May 2009


0

1

2

3

4

5

6

7

8

9

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

1992 1994 1996 1998 2000 2002 2004 2006 2008 2010

Wolfkin LakeLong Term Monitoring Data





91

Wood Lake







0

2

4

6

8

10

12

14

16

18

0 2 4 6 8 10 12 14 16

De

pth

(m)

May 2009


0

2

4

6

8

10

12

14

16

18

0 5 10 15 20 25

De

pth

(m)

August 2009


0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010

Wood LakeLong Term Monitoring Data






92

2009 Lake Joseph Monitoring Data



93

Lake Joseph – Sampling Points


94

Lake Joseph – Cox Bay

0

2

4

6

8

10

12

14

0 10 20 30

Dep

th (m

)

Temperature (⁰C)

0

2

4

6

8

10

12

14

0 5 10 15

Dissolved Oxygen (mg/L)

11-May

25-May

8-Jun

23-Jun

6-Jul

20-Jul

4-Aug

17-Aug

26-Aug

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

11-May 25-May 8-Jun 23-Jun 6-Jul 20-Jul 4-Aug 17-Aug 26-Aug

Ave Phosphorus (µg/L) 5.6 12.4 4.9 5.4 5.0 6.0 7.6 10.3 4.4

Secchi Depth (m) 5.5 5.0 7.0 9.0 4.5 5.0 5.3 5.0 6.5


95

Lake Joseph – Hamer Bay

0

10

20

30

40

50

60

0 5 10 15 20 25

Dep

th (m

)

Temperature (⁰C)

0

10

20

30

40

50

60

0 5 10 15 20


11-May

25-May

8-Jun

23-Jun

6-Jul

20-Jul

4-Aug

17-Aug

26-Aug

0.0

2.0

4.0

6.0

8.0

10.0

12.0



Secchi Depth (m) 8.0 8.5 7.0 7.0 5.0 8.0 5.0 6.5 8.5


96

Lake Joseph – Joseph River

0

1

2

3

4

5

6

7

8

9

0 10 20 30

Dep

th (m

)

Temperature (⁰C)

0

1

2

3

4

5

6

7

8

9

0 5 10 15


11-May25-May8-Jun23-Jun6-Jul20-Jul4-Aug17-Aug26-Aug

0.0

2.0

4.0

6.0

8.0

10.0

12.0



Secchi Depth (m) 3.5 4.0 5.3 5.5 4.0 6.3 4.0 5.0 6.0


97

Lake Joseph – Little Lake Joseph

0

5

10

15

20

25

30

35

40

45

0 10 20 30

Dep

th (m

)

Temperature (⁰C)

0

5

10

15

20

25

30

35

40

45

0 5 10 15


11-May

25-May

8-Jun

23-Jun

6-Jul

20-Jul

4-Aug

17-Aug

26-Aug

0.0

2.0

4.0

6.0

8.0

10.0

12.0



Secchi Depth (m) 4.0 5.0 6.0 7.0 5.0 5.0 6.0 6.6 7.0


98

Lake Joseph – Main

0

10

20

30

40

50

60

0 5 10 15 20 25

Dep

th (m

)

Temperature (⁰C)

0

10

20

30

40

50

60

0 5 10 15


11-May

25-May

8-Jun

23-Jun

6-Jul

20-Jul

4-Aug

17-Aug

26-Aug

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0



Secchi Depth (m) 9.0 6.0 6.0 10.0 7.0 7.5 6.0 6.5 8.0


99

Lake Joseph – North

0

10

20

30

40

50

60

0 5 10 15 20 25

Dep

th (m

)

Temperature (⁰C)

0

10

20

30

40

50

60

0 5 10 15 20


11-May

25-May

8-Jun

23-Jun

6-Jul

20-Jul

4-Aug

17-Aug

26-Aug

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0



Secchi Depth (m) 9.0 7.0 8.0 9.0 7.0 9.0 5.0 7.0 7.8


100

Lake Joseph - South

0

5

10

15

20

25

30

35

40

45

50

0 5 10 15 20 25

Dep

th (m

)

Temperature (⁰C)

0

5

10

15

20

25

30

35

40

45

0 5 10 15


11-May

25-May

8-Jun

23-Jun

6-Jul

20-Jul

4-Aug

17-Aug

26-Aug

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0



Secchi Depth (m) 6.0 7.5 6.5 8.0 6.0 8.5 7.0 7.0 7.5


101

2009 Land Use Survey Data Tables



102

Bala Reach – Moon River

Shoreline Backlot Structures

Type Length (m) Percent Type Area (m2) Percent Type Count

Natural Beach 1,518.71 3.91 Mixed Forest 242,590.55 32.58 1 Slip Crib Boathouse 4

Rock 28,052.88 72.26 Thinned Forest 296,515.09 39.82 Floating Boathouse 1

Shrub 219.12 0.56 Overgrowth 24,043.55 3.23 1 Slip Floating Boathouse 2

Wetland 3,131.38 8.07 Rock Barren 3,422.50 0.46 1 Slip Fill Boathouse 1

Man Made Beach 3,059.61 7.88 Wetland 13,030.59 1.75 3 Slip Fill Boathouse 1

Concrete Shore Wall 164.56 0.42 Landscaped Yard 22,456.32 3.02 Crib Dock 82

Stone Shore Wall 2,594.36 6.68 Unbuffered Lawn 142,631.90 19.15 1 Slip Crib Dock 3

Wooden Shore Wall 81.89 0.21 Cantilever Dock 3

Fill Dock 10

Floating Dock 278

1 Slip Floating Dock 4

Pole Dock 42

1 Slip Pole Dock 2

Deck 7

Concrete Ramp 2

Wooden Ramp 2

Total 38,822.51 100.00 Total 744,690.50 100.00 Total 444

Natural 32,922.00 84.80 Natural 259,044.00 34.79

Altered 5,900.00 15.20 Altered 485,647.00 65.21


103

Lake Joseph – Seguin Portion

Shoreline Backlot Structures

Type Length (m) Percent Type Area (m2) Percent Type Count

Natural Beach 732.71 0.92 Commercial 5,700.31 0.38 Crib Boathouse 4

Mixed Forest 6,036.53 7.59 Farm 14,692.85 0.97 1 Slip Crib Boathouse 59

Thinned Forest 454.79 0.57 Natural Beach 1,421.45 0.09 2 Slip Crib Boathouse 52

Rock 57,936.78 72.86 Coniferous Forest 36,541.65 2.41 3 Slip Crib Boathouse 20

Shrub 8,314.16 10.46 Mixed Forest 697,366.08 46.02 3+ Slip Crib Boathouse 3

Wetland 488.18 0.61 Thinned Forest 502,580.98 33.16 1 Slip Fill Boathouse 1

Man Made Beach 3,422.38 4.30 Overgrowth 3,285.24 0.22 2 Slip Fill Boathouse 3

Concrete Ramp 31.06 0.04 Rock Barren 96,550.14 6.37 Pole Boathouse 2

Concrete Shore Wall 172.928 0.22 Wetland 6,348.70 0.42 1 Slip Pole Boathouse 13

Stone Shore Wall 1,815.21 2.28 Man Made Beach 2,972.02 0.20 2 Slip Pole Boathouse 53

Wooden Shore Wall 110.49 0.14 Landscaped Yard 69,960.23 4.62 3 Slip Pole Boathouse 50

Unbuffered Lawn 5.93 0.01 Buffered Lawn 30,116.77 1.99 3+ Slip Pole Boathouse 2

Unbuffered Lawn 47,913.49 3.16 Crib Dock 145

1 Slip Crib Dock 8

2 Slip Crib Dock 11

3+ Slip Crib Dock 3

Cantilever Dock 1

Fill Dock 17

Floating Dock 59

3+ Slip Floating Dock 2

Pole Dock 55

2 Slip Pole Dock 2

3 Slip Pole Dock 2

Deck 3

Wooden Ramp 3

Total 79,521.15 100.00 Total 1,515,449.91 100.00 Total 573

Natural 73,508.36 92.44 Natural 838,228.02 55.31

Altered 6,012.79 7.56 Altered 677,221.89 44.69


104

Benthic Macroinvertebrate Monitoring

Monitoring bottom-dwelling aquatic invertebrate communities has been part of The District Municipality of Muskoka’s Lake System Health Biological Monitoring Program since 2003. In biological monitoring, composition of the aquatic-invertebrate community, the pattern of abundances of different species collected, indicates the health of the ecosystem. Aquatic invertebrates, such as worms, mollusks, insects, crustaceans, and mites, are common indicators in biological-monitoring programs. These animals are sensitive indicators of the health, or condition of lakes and streams, and different species have different sensitivities to environmental changes such as pollution or habitat alteration. Aquatic invertebrates live between 1 and 3 years and are in constant contact with lake sediments. Contamination and toxicity of sediments affects those animals that are sensitive. For example, lake acidification is accompanied by both a decline in the total number of species present, and an increase in the abundance of those species able to tolerate acidity. Reference-Condition Approach One of the challenges of biological monitoring is that the composition of healthy invertebrate communities varies from place to place, and from time to time. We therefore have to understand natural variability to be able to make reliable conclusions about whether or not the community that we find in a given lake is normal or not. One way to determine what normal looks like is to sample reference sites. Reference sites are locations where human impacts (such as pollution, shoreline alteration, and development) are minimal and the aquatic ecosystem is considered to be in the best condition found in Muskoka. Biological-monitoring assessments can make judgments about the condition of lakes by comparing samples from a given lake of interest (a test lake) against a set of samples from reference lakes. In short, reference lakes define what normal Muskoka invertebrate communities should look like in the absence or near-absence of human influence. Atypical sites, which are biologically different from reference sites, warrant further study to determine why their communities are unusual. Because we need information from minimally-impacted reference sites before we can evaluate our lakes, much of the focus of our biomonitoring program to-date has been on sampling reference sites. Since reference sites are assumed to be in excellent condition, it doesn’t make sense to report their condition; however, because their communities act as a benchmark for assessing other lakes, it is informative to understand invertebrate-community composition in reference lakes, and to watch for changes in reference lake composition over time. This report serves to characterize reference lake community structure, and gives a preliminary assessment of local test lakes.


105

Data analysis Biological monitoring programs yield large data tables. You can envision such tables as columns of numbers, each column representing the counts of different species collected at a given location. It is very difficult to pick-out ecological patterns in such complex datasets, so it is common practice to simplify data tables into a manageable number of indices that represent meaningful ecological patterns. This is similar to the way stock-market performance is measured using indices like the TSX or the Dow Jones Industrial Average. The District of Muskoka uses several indices to simplify bioassessments, as described in Table 1. Table 1: Indices used to summarize aquatic invertebrate composition in Muskoka.

Indicator What it tells us

Number of taxa collected (Richness)

The number of taxa is a measure of biological diversity. Richness increases with increasing habitat diversity, suitability, and water quality; therefore, the healthier a site’s community, the greater its number of taxa.

Percent of collection made-up of mayflies, dragonflies, damselflies, and caddisflies (% EOT)

Ephemeroptera (mayflies), Odonata (dragonflies and damselflies), and Trichoptera (caddisflies) are very sensitive to pollution and habitat alteration. They should be prominent in healthy ecosystems, but their numbers will decline in response to stress imposed by human activities.

Percent of collection made-up of midges (% Chironomidae)

Midges (true flies in the family Chironomidae) are tolerant of pollution and habitat changes so their dominance indicates water quality problems.

Percent of collected animals that are predators (% predators)*

In a healthy ecosystem, the numbers of predators and prey are maintained within a narrow range. Extreme fluctuations in this balance signify that the ecosystem is sick.

Percent of collected animals that are adapted to feeding on coarse plant matter (% shredders)*

Shredders are a group of plant eaters adapted to breaking down leaves, wood, and other plant matter that originates on land but gets transported into waterbodies. Such animals should be abundant if there is a good connection between a lake and its watershed. In addition to recycling nutrients, shredders are food for other animals.

Percent of collected animals that are adapted to feeding by collecting small pieces of organic matter (% collector/gatherers)*

Collector-gatherers feed on small pieces of organic matter that arise from the processing activities of shredders (described above). Their presence indicates a good population of shredders, which provide them with food. Like shredders, these animals perform a vital role in energy cycling, and are prey for other animals.

Organic pollution score (Hilsenhoff index value)

The Hilsenhoff index combines information about the abundances of different types of animals collected at a site with information about those animals’ sensitivities to sewage pollution, farm wastes, and other sources of nutrients like phosphorus, nitrogen, and carbon. High values of this index indicate pollution; low values indicate good water quality.

In healthy ecosystems, the proportion of the aquatic-invertebrate community that is made-up of predators, shredders, collector/gatherers, and other animals is maintained within a narrow range. Marked divergences in abundances of any type of animal signifies a stressed ecosystem.


106

How do your local sites fare? The Aquatic Invertebrate Data Sheet provides a preliminary evaluation of your lake. If your sites are reference lakes, assumed to reflect the best ecosystem conditions in Muskoka, no assessment is warranted. For test locations, assessments can be made by comparing test-site index values against the averages for Muskoka reference lakes, which are provided in the shaded box at bottom right. In general, 1. Richness should be high (close to the average for Muskoka or above).

2. % EOT will decrease and % Chironomids will increase over time with water quality impairment.

3. % Predators should be less than the other types of benthos (shredders, collector/gatherers) and these percentages should remain relatively constant over time.

4. The Hilsenhoff Index value should be close to the average for Muskoka or less, as a lower value indicates healthier water.

Even though most of the lakes in Muskoka are quite similar, no two lakes are identical and there are various factors that play a role in determining the relative abundances of different types of aquatic invertebrates. Comparing your lake’s data to the rest of the lakes in Muskoka is not definite, but it can give you an idea. If there is a trend in all the types of indices and data, either above or below normal, it may indicate your lake’s overall quality.


107

2009 Aquatic Invertebrate Data Sheets



108

1 2 3 1 2 3 1 2 3 1 2 3

Hydras Coelenterata

Flatworms 3 1 Turbellaria

Roundworms 6 1 Nematoda

Aquatic Earthworms 2 2 1 2 2 1 Oligochaeta

Leeches 1 1 1 Hirudinaea

Sow Bugs 36 51 1 21 33 21 23 20 45 70 140 126 Isopoda

Clams 9 3 Pelecypoda

Fairy Shrimp 34 19 13 16 22 12 24 14 29 59 29 96 Amphipoda

Crayfish 4 1 Decapoda

Mites 1 1 5 2 3 11 4 1 1 3 Hydracarina

Mayflies 23 22 2 11 12 26 12 7 13 1 1 3 Ephemeroptera

Dragonflies 3 1 3 14 7 2 7 5 4 7 3 6 Anisoptera

Damselflies 5 2 6 11 16 14 9 4 2 1 Zygoptera

Stoneflies Plecoptera

True Bugs Hemiptera

Fishflies & Alderflies 2 1 2 Megaloptera

Caddisflies 12 8 1 5 6 8 5 14 4 3 1 1 Trichoptera

Aquatic Moths Lepidoptera

Beetles 1 1 Coleoptera

Snails & Limpets 4 1 Gastropoda

Midges 16 9 50 26 18 29 22 25 9 19 18 14 Chironomidae

Horse & Deer Flies Tabanidae

Mosquitos 1 1 3 Culicidae

No-see-ums 1 Ceratopogonidae

Craneflies Tipulidae

Blackflies Simuliidae

Misc. True Flies Misc. Diptera

Total Count 133 116 103 111 119 114 106 103 113 169 198 248

Number of Taxa 10 10 13 11 10 9 8 10 11 10 10 8

Muskoka Average *

Richness 13

% EOT 26

% Chironimids 12

% Predators 24

% Shredders 2

% Collectors/Gatherers 69

Hilsenhoff Index 5.99

R = Reference Site

9

80

* The Muskoka Average is based on 73 samples collected at 44 reference sites betw een 2004 to 2008. Reference sites from five

mesotrophic and nineteen oligotrophic lakes throughout Muskoka w ere used.

6.44

17

15

7

21

77

Site 1

6

72

2007

Site 2 R

11

26

6.53 6.45

2005 2006

15

6

16

25 38

21

22

Ada LakeTownship of Muskoka Lakes

Common Name Scientific Name

Site 4 R

2009

7.14

12

5

8

4

1

95


109

1 2 3

Hydras Coelenterata

Flatworms Turbellaria

Roundworms Nematoda

Aquatic Earthworms Oligochaeta

Leeches Hirudinaea

Sow Bugs 1 Isopoda


Fairy Shrimp 4 39 75 Amphipoda

Crayfish Decapoda

Mites 1 1 Hydracarina

Mayflies 22 6 4 Ephemeroptera

Dragonflies 2 7 2 Anisoptera

Damselflies 2 2 Zygoptera


True Bugs Hemiptera

Fishflies & Alderflies Megaloptera

Caddisflies 1 1 Trichoptera


Beetles Coleoptera

Snails & Limpets Gastropoda

Midges 9 4 14 Chironomidae


Mosquitos Culicidae

No-see-ums Ceratopogonidae




Total Count 54 59 99

Number of Taxa 8 6 7

Muskoka Average *

Richness 13

% EOT 26

% Chironimids 12

% Predators 24

% Shredders 2



R = Reference Site

* The Muskoka Average is based on 73 samples collected at 44 reference sites betw een 2004 to 2008. Reference

sites from five mesotrophic and nineteen oligotrophic lakes throughout Muskoka w ere used.

1 Did not achieve the minimum 100-organism count per replicate.

Scientific Name

23

13

8

Site 7 R

2009 1

6.08

Common Name

9

Bigwind LakeTown of Bracebridge

1

84


110

1 2 3

Hydras Coelenterata


Roundworms Nematoda

Aquatic Earthworms 2 1 Oligochaeta

Leeches Hirudinaea

Sow Bugs Isopoda

Clams 2 Pelecypoda


Crayfish Decapoda

Mites 7 2 6 Hydracarina



Damselflies 8 8 1 Zygoptera


True Bugs 1 2 Hemiptera


Caddisflies 4 1 1 Trichoptera



Snails & Limpets 3 Gastropoda



Mosquitos Culicidae

No-see-ums 1 2 Ceratopogonidae






Muskoka Average *

Richness 13

% EOT 26

% Chironimids 12

% Predators 24

% Shredders 2



R = Reference Site

5.95

12

1

* The Muskoka Average is based on 73 samples collected at 44 reference sites betw een 2004 to 2008.

Reference sites from five mesotrophic and nineteen oligotrophic lakes throughout Muskoka w ere used.

Common Name

13

Scientific Name

87

Buck LakeTown of Huntsville

2009

Site 1 R

14

16


111

1 2 3 1 2 3 1 2 3 1 2 3

Hydras Coelenterata

Flatworms 1 Turbellaria

Roundworms 7 Nematoda



Sow Bugs 1 Isopoda

Clams 2 1 4 Pelecypoda


Crayfish Decapoda

Mites 5 15 42 1 1 4 2 7 6 4 1 Hydracarina



Damselflies 6 4 9 9 5 17 2 4 1 8 12 Zygoptera



Fishflies & Alderflies 2 1 Megaloptera

Caddisflies 1 4 4 7 7 3 3 5 6 Trichoptera

Aquatic Moths 1 Lepidoptera

Beetles 5 1 3 Coleoptera

Snails & Limpets 1 3 1 1 1 2 4 1 2 Gastropoda

Midges 16 5 9 12 18 31 30 25 73 92 38 Chironomidae

Horse & Deer Flies 1 Tabanidae


No-see-ums 1 10 1 1 1 4 5 7 7 6 6 2 Ceratopogonidae

Craneflies 1 Tipulidae

Blackflies 18 15 Simuliidae


Total Count 82 102 100 118 145 121 98 110 126 135 167 103

Number of Taxa 10 11 12 11 10 9 12 12 14 8 10 10

Muskoka Average *

Richness 13

% EOT 26

% Chironimids 12

% Predators 24

% Shredders 2



R = Reference Site

13

63

5.54

26

Chub LakeTown of Huntsville

2005 2008Common Name Scientific Name2004

Site 1 R

11

21

50

12

66

10

12

46

33

15

29



3

72

6.10

2009

14

3

80

6.40

16

18

30

6.06

7

35


112

1 2 3 1 2 3 1 2 3 1 2 3

Hydras Coelenterata


Roundworms 4 1 Nematoda

Aquatic Earthworms 1 1 1 1 2 4 2 Oligochaeta

Leeches 1 Hirudinaea

Sow Bugs Isopoda

Clams 2 9 2 1 2 1 Pelecypoda


Crayfish Decapoda

Mites 12 27 13 27 30 16 10 7 6 7 10 13 Hydracarina



Damselflies 37 10 14 6 8 2 1 10 3 6 Zygoptera


True Bugs Hemiptera

Fishflies & Alderflies 2 1 1 1 Megaloptera

Caddisflies 8 2 1 5 1 2 15 10 7 3 4 15 Trichoptera



Snails & Limpets 14 4 3 4 15 3 Gastropoda



Mosquitos 5 1 2 1 Culicidae

No-see-ums 2 1 1 1 9 5 1 Ceratopogonidae




Total Count 213 268 214 133 145 138 111 92 107 107 116 168

Number of Taxa 9 11 12 11 9 10 13 13 11 7 8 9

Muskoka Average *

Richness 13

% EOT 26

% Chironimids 12

% Predators 24

% Shredders 2



R = Reference Site



Dickie LakeTownship of Lake of Bays

Common Name

Site 1 R

2005 2006

12

31

Scientific Name2008

14

28

17

10

5.30

47

12

18

29

34

2

62

6.12

25

29

2

67

5.95

Site 2 R

2009

9

1735

25

13

6

81

6.08


113

1 2 3 1 2 3 1 2 3 1 2 3

Hydras Coelenterata

Flatworms 1 1 1 3 1 4 Turbellaria

Roundworms 4 9 5 Nematoda

Aquatic Earthworms 16 10 2 14 9 5 20 16 16 1 Oligochaeta

Leeches 1 2 Hirudinaea

Sow Bugs 12 28 75 30 25 15 17 17 27 11 10 Isopoda

Clams 2 1 9 23 4 Pelecypoda


Crayfish Decapoda

Mites 2 1 15 10 12 2 3 2 1 3 Hydracarina

Mayflies 3 1 1 15 10 8 16 5 30 Ephemeroptera

Dragonflies 1 16 1 4 17 7 1 1 1 1 Anisoptera

Damselflies 1 1 1 2 3 1 3 4 1 Zygoptera


True Bugs 1 Hemiptera


Caddisflies 2 3 6 2 2 2 2 2 Trichoptera


Beetles 5 1 3 2 1 4 5 Coleoptera

Snails & Limpets 1 6 2 7 1 2 1 2 5 Gastropoda



Mosquitos Culicidae





Total Count 122 102 106 151 105 102 108 135 93 180 106 215

Number of Taxa 10 12 10 12 13 12 12 14 10 12 7 10

Muskoka Average *

Richness 13

% EOT 26

% Chironimids 12

% Predators 24

% Shredders 2



R = Reference Site

* The Muskoka Average is based on 73 samples collected at 44 reference sites betw een 2004 to 2008. Reference sites from

five mesotrophic and nineteen oligotrophic lakes throughout Muskoka w ere used.

Fairy LakeTown of Huntsville

0

87

6.85

Common Name

13

6

4

10

Site 3 R

2004 Scientific Name

3

Site 5

15

12

2005 2008 2009

12

13

7

5

1

92

6.13

Site 2 R

65

6.23

14

13

11

7

1

80

5

23

6.83


114

1 2 3 1 2 3

Hydras Coelenterata



Aquatic Earthworms 1 1 9 10 2 Oligochaeta


Sow Bugs Isopoda

Clams Pelecypoda

Fairy Shrimp 34 38 46 173 104 53 Amphipoda

Crayfish Decapoda

Mites 8 8 4 2 Hydracarina

Mayflies 8 3 3 1 Ephemeroptera

Dragonflies 15 15 2 9 16 9 Anisoptera



True Bugs Hemiptera


Caddisflies 12 8 27 12 13 Trichoptera


Beetles 1 2 5 6 Coleoptera


Midges 39 36 23 21 29 46 Chironomidae


Mosquitos Culicidae

No-see-ums 1 2 3 2 3 Ceratopogonidae




Total Count 120 100 97 255 197 132

Number of Taxa 10 6 9 11 10 9

Muskoka Average *

Richness 13

% EOT 26

% Chironimids 12

% Predators 24

% Shredders 2



R = Reference Site

Gilleach LakeTown of Bracebridge

* The Muskoka Average is based on 73 samples collected at 44 reference sites betw een 2004 to 2008. Reference sites

from five mesotrophic and nineteen oligotrophic lakes throughout Muskoka w ere used.

6

71

6.09

Common Name

11

22

31

22


Site 1 R

2009

78

5.89

13

16

16

13

9


115

1 2 3 1 2 3

Hydras Coelenterata



Aquatic Earthworms 1 1 2 1 Oligochaeta

Leeches 1 1 1 2 Hirudinaea

Sow Bugs 15 44 38 202 211 387 Isopoda


Fairy Shrimp 16 22 11 19 45 6 Amphipoda

Crayfish 1 Decapoda


Mayflies 2 2 Ephemeroptera

Dragonflies 1 2 3 6 Anisoptera

Damselflies 9 1 8 1 2 Zygoptera



Fishflies & Alderflies 1 1 7 7 3 Megaloptera




Snails & Limpets 4 4 1 Gastropoda

Midges 7 9 15 10 7 4 Chironomidae

Horse & Deer Flies 1 1 Tabanidae

Mosquitos Culicidae


Craneflies 5 6 4 Tipulidae


Misc. True Flies 1 1 Misc. Diptera

Total Count 95 123 110 268 282 414

Number of Taxa 6 8 8 16 10 11

Muskoka Average *

Richness 13

% EOT 26

% Chironimids 12

% Predators 24

% Shredders 2



R = Reference Site

5

62

7.04

Common Name

16

7

10

35


* The Muskoka Average is based on 73 samples collected at 44 reference sites betw een 2004 to 2008. Reference sites

from five mesotrophic and nineteen oligotrophic lakes throughout Muskoka w ere used.

Hoc Roc RiverTown of Gravenhurst

Site 1

2009

17

3

2

4

1

93

7.65


116

1 2 3 1 2 3 1 2 3

Hydras Coelenterata



Aquatic Earthworms 2 1 1 Oligochaeta

Leeches 1 2 1 1 Hirudinaea

Sow Bugs Isopoda

Clams 2 5 1 2 3 1 Pelecypoda

Fairy Shrimp 46 37 54 65 52 37 190 120 171 Amphipoda

Crayfish Decapoda

Mites 3 5 10 2 1 1 1 2 Hydracarina

Mayflies 1 2 3 1 5 1 Ephemeroptera

Dragonflies 13 13 23 7 3 2 2 Anisoptera

Damselflies 3 2 5 1 1 Zygoptera


True Bugs 1 Hemiptera

Fishflies & Alderflies 2 1 2 1 Megaloptera

Caddisflies 2 3 7 1 1 2 9 6 8 Trichoptera


Beetles 5 1 6 2 1 Coleoptera

Snails & Limpets 8 18 9 3 7 19 1 2 Gastropoda

Midges 29 8 6 13 18 23 9 4 3 Chironomidae


Mosquitos Culicidae





Total Count 111 108 143 99 95 93 226 139 188

Number of Taxa 12 14 12 9 9 9 11 10 7

Muskoka Average *

Richness 13

% EOT 26

% Chironimids 12

% Predators 24

% Shredders 2



R = Reference Site

12

6

2006

15

21

Common Name Scientific Name2007

Site 1 R

Leech LakeTown of Bracebridge

6.28

13

1

12

25

3

51



4

91

5.92

Site 2

2009

14

6

3

4

19

6.01

74


117

1 2 3

Hydras Coelenterata


Roundworms Nematoda

Aquatic Earthworms 4 Oligochaeta


Sow Bugs Isopoda

Clams 5 Pelecypoda


Crayfish Decapoda






True Bugs Hemiptera

Fishflies & Alderflies 2 1 Megaloptera







Mosquitos Culicidae




Misc. True Flies 2 Misc. Diptera



Muskoka Average *

Richness 13

% EOT 26

% Chironimids 12

% Predators 24

% Shredders 2



R = Reference Site

Little Long LakeTownship of Muskoka Lakes

2009

Site 1 R

15

57

Scientific Name

54

5.58

26

19



Common Name

17


118

1 2 3

Hydras Coelenterata




Leeches Hirudinaea

Sow Bugs 131 71 162 Isopoda

Clams Pelecypoda


Crayfish Decapoda






True Bugs Hemiptera






Midges 3 1 Chironomidae


Mosquitos Culicidae







Muskoka Average *

Richness 13

% EOT 26

% Chironimids 12

% Predators 24

% Shredders 2



R = Reference Site

6.85

6

1



Common Name

1

Scientific Name

92

Loon LakeTown of Gravenhurst

2009

Site 1 R

13

6


119

1 2 3

Hydras Coelenterata

Flatworms 2 1 1 Turbellaria

Roundworms Nematoda

Aquatic Earthworms 1 6 Oligochaeta



Clams Pelecypoda


Crayfish Decapoda

Mites Hydracarina

Mayflies 1 12 Ephemeroptera

Dragonflies Anisoptera

Damselflies Zygoptera


True Bugs Hemiptera




Beetles 1 Coleoptera

Snails & Limpets 1 1 2 Gastropoda



Mosquitos Culicidae







Muskoka Average *

Richness 13

% EOT 26

% Chironimids 12

% Predators 24

% Shredders 2



R = Reference Site

6.45

1

9



Common Name

4

Scientific Name

89

Mary LakeTown of Huntsville

2009

Site 2

10

11


120

1 2 3

Hydras Coelenterata


Roundworms Nematoda



Sow Bugs 1 Isopoda

Clams 1 Pelecypoda


Crayfish Decapoda





Stoneflies 1 Plecoptera









Mosquitos Culicidae







Muskoka Average *

Richness 13

% EOT 26

% Chironimids 12

% Predators 24

% Shredders 2



R = Reference Site

5.99

34

3



Common Name

14

Scientific Name

63

Menominee LakeTownship of Lake of Bays

2009

Site 5 R

15

33


121

1 2 3

Hydras Coelenterata


Roundworms Nematoda



Sow Bugs Isopoda

Clams 1 Pelecypoda


Crayfish Decapoda






True Bugs Hemiptera








Mosquitos Culicidae

No-see-ums 7 10 2 Ceratopogonidae






Muskoka Average *

Richness 13

% EOT 26

% Chironimids 12

% Predators 24

% Shredders 2



R = Reference Site

6.19

34

3



Common Name

25

Scientific Name

64

Rebecca LakeTownship of Lake of Bays

2009

Site 1 R

12

19


122

1 2 3 1 2 3 1 2 3 1 2 3

Hydras Coelenterata





Sow Bugs Isopoda

Clams 1 4 3 Pelecypoda


Crayfish Decapoda

Mites 14 9 3 18 24 19 11 30 16 4 1 Hydracarina

Mayflies 7 24 11 12 6 20 14 14 4 5 20 Ephemeroptera


Damselflies 6 9 13 22 19 8 5 12 2 7 7 Zygoptera


True Bugs Hemiptera


Caddisflies 2 4 5 3 1 16 3 Trichoptera

Aquatic Moths 1 Lepidoptera


Snails & Limpets 1 2 5 10 13 1 Gastropoda


Horse & Deer Flies 4 1 Tabanidae


No-see-ums 3 4 2 6 4 Ceratopogonidae

Craneflies 4 1 3 Tipulidae


Misc. True Flies 1 1 1 Misc. Diptera

Total Count 108 113 106 111 118 107 138 138 103 83 29 82

Number of Taxa 7 8 9 15 12 13 12 11 11 8 5 7

Muskoka Average *

Richness 13

% EOT 26

% Chironimids 12

% Predators 24

% Shredders 2



R = Reference Site

45

6.02



15

30

11

41

6

30

4.7

56

6.13

2008

15

30

24

50

5.72

48

1

10

Common Name

Ril LakeTownship of Lake of Bays


Site 2

2009 1

Site 1 R

2008

6.17

1 Did not achieve the minimum 100-organism count per replicate.

9

33

33

19

2

79

11

49


123

1 2 3

Hydras Coelenterata


Roundworms Nematoda



Sow Bugs Isopoda

Clams Pelecypoda


Crayfish Decapoda






True Bugs Hemiptera

Fishflies & Alderflies 1 Megaloptera




Snails & Limpets 1 1 Gastropoda



Mosquitos Culicidae







Muskoka Average *

Richness 13

% EOT 26

% Chironimids 12

% Predators 24

% Shredders 2



R = Reference Site

5.96

22

4



Common Name

11

Scientific Name

74

Ril LakeTownship of Muskoka Lakes

2009

Site 3 R

13

14


124

1 2 3

Hydras Coelenterata


Roundworms Nematoda


Leeches Hirudinaea


Clams Pelecypoda


Crayfish 1 Decapoda



Dragonflies 3 1 Anisoptera

Damselflies 1 6 Zygoptera


True Bugs Hemiptera




Beetles 4 Coleoptera




Mosquitos Culicidae

No-see-ums 4 5 Ceratopogonidae






Muskoka Average *

Richness 13

% EOT 26

% Chironimids 12

% Predators 24

% Shredders 2



R = Reference Site

89

6.60

6

5



Common Name

Township of Muskoka Lakes

2009

Site 1 R

12

15

5

Scientific Name

Lake Rosseau - Tobin Island


125

1 2 3

Hydras Coelenterata


Roundworms Nematoda




Clams Pelecypoda


Crayfish Decapoda




Damselflies 2 Zygoptera


True Bugs Hemiptera






Midges 6 3 Chironomidae


Mosquitos Culicidae







Muskoka Average *

Richness 13

% EOT 26

% Chironimids 12

% Predators 24

% Shredders 2



R = Reference Site

Scientific Name

92

Six Mile LakeTownship of Georgian Bay

2009

Site 3 R

6.30

7

1



Common Name

1

13

8


126

1 2 3

Hydras Coelenterata


Roundworms Nematoda


Leeches Hirudinaea

Sow Bugs Isopoda

Clams Pelecypoda


Crayfish Decapoda



Dragonflies Anisoptera



True Bugs Hemiptera








Mosquitos Culicidae







Muskoka Average *

Richness 13

% EOT 26

% Chironimids 12

% Predators 24

% Shredders 2



R = Reference Site

Lake Vernon - Tawingo CollegeTown of Huntsville

2009

Site 1 R

8

8

Scientific Name

92

5.96

5

3



Common Name

2


127

1 2 3 1 2 3 1 2 3

Hydras Coelenterata


Roundworms Nematoda

Aquatic Earthworms Oligochaeta


Sow Bugs Isopoda

Clams Pelecypoda

Fairy Shrimp 41 38 43 13 24 30 92 92 49 Amphipoda

Crayfish Decapoda

Mites 1 7 10 10 6 2 2 2 Hydracarina

Mayflies 20 39 16 16 28 69 75 75 44 Ephemeroptera

Dragonflies 6 10 8 8 10 27 34 34 26 Anisoptera

Damselflies 8 22 17 2 12 23 17 17 35 Zygoptera


True Bugs Hemiptera

Fishflies & Alderflies 1 Megaloptera

Caddisflies 1 1 1 1 3 5 5 7 Trichoptera


Beetles 5 5 1 1 2 3 3 2 Coleoptera

Snails & Limpets 1 1 1 1 Gastropoda

Midges 23 22 17 58 33 37 31 31 24 Chironomidae


Mosquitos 1 2 2 2 2 Culicidae

No-see-ums 1 1 1 Ceratopogonidae



Misc. True Flies 1 Misc. Diptera

Total Count 108 146 106 110 124 199 259 259 190

Number of Taxa 11 9 9 8 12 10 8 8 9

Muskoka Average *

Richness 13

% EOT 26

% Chironimids 12

% Predators 24

% Shredders 2



R = Reference Site

70

6.00

13

48

31

28

1

Lake WaseosaTown of Huntsville

2005 2008 Scientific NameCommon Name

17

11

25

1

5.74

41

73

5.99



Site 2 R

2009

9

53

12

25

2

73

Documents

Data Report - CivicWeb