English Bay Lakes Salmon Enhancement Progress Report … BAY LAKES RPT 2014.pdf · English Bay Lakes Salmon Enhancement Progress Report 2014 Prepared by: Caroline Cherry, Hatchery

English Bay Lakes

Salmon Enhancement

Progress Report

2014

Prepared by:

Caroline Cherry, Hatchery Operations Coordinator

January 2015

This year's operation of the English Bay Lakes Salmon Enhancement Project was made

possible through enhancement taxes paid by the commercial fishermen in Area H, Cook

Inlet and associated waters, through the harvest and sale of surplus fish and through an

Alaska Sustainable Salmon Fund grant received from the Alaska Department of Fish and

Game (Project Number 44717).

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DISCLAIMER

The Cook Inlet Aquaculture Association (CIAA) conducts salmon enhancement and restoration

projects in area H, Cook Inlet and associated waters. As an integral part of these projects a

variety of monitoring and evaluation studies are conducted. The following progress report is a

synopsis of the monitoring and evaluation studies conducted for the English Bay Lake salmon

enhancement project.

The purpose of the progress report is to provide a vehicle to distribute the information produced

by the monitoring and evaluation studies. Data collected each year are presented with a

summary of the information previously collected for comparative purposes. These reports are

intended to provide a general description of project activity and are not an exhaustive evaluation

of any restoration or enhancement project. The information presented in this report has not

undergone an extensive review. As reviews are completed, the information may be updated and

presented in later progress reports.

CIAA maintains a strong policy of equal employment opportunity for all employees and

applicants for employment. We hire, train, promote, and compensate employees without regard

for race, color, religion, sex, sexual orientation, national origin, age, marital status, disability or

citizenship, as well as other classifications protected by applicable federal, state or local laws.

Our equal employment opportunity philosophy applies to all aspects of employment with CIAA

including recruiting, hiring, training, transfer, promotion, job benefits, pay, dismissal and

educational assistance.

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ACKNOWLEDGEMENTS

The 2014 English Bay Lakes smolt migration, fry release, adult count, and gamete collection was

conducted by the Cook Inlet Aquaculture Association in cooperation with the Nanwalek Village

Council. Appreciation is extended to the full-time and seasonal staff at English Bay Lakes and

Trail Lakes Hatchery. Appreciation is also extended to the Nanwalek Village Council and the

Alaska Department of Fish and Game for their continued support.

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TABLE OF CONTENTS

DISCLAIMER ............................................................................................................................... iii

ACKNOWLEDGEMENTS ............................................................................................................ v

TABLE OF CONTENTS .............................................................................................................. vii

LIST OF FIGURES ..................................................................................................................... viii

LIST OF TABLES ....................................................................................................................... viii

ABSTRACT .................................................................................................................................... 1

INTRODUCTION AND PURPOSE .............................................................................................. 3

PROJECT AREA ............................................................................................................................ 5

METHODS ..................................................................................................................................... 9 Environmental Conditions ........................................................................................................... 9 Smolt Enumeration ...................................................................................................................... 9 Smolt Characteristics and Enhanced Contribution .................................................................... 11 Adult Escapement ...................................................................................................................... 14 Gamete Collection, Incubation and Rearing - Sockeye ............................................................. 16 Fish Transport and Stocking ...................................................................................................... 17

RESULTS AND DISCUSSION ................................................................................................... 19 Environmental Conditions ......................................................................................................... 19 Smolt Enumeration - Sockeye ................................................................................................... 19 Adult Escapement - Sockeye ..................................................................................................... 20

RECOMMENDATIONS .............................................................................................................. 25

LITERATURE CITED ................................................................................................................. 27

APPENDICES .............................................................................................................................. 29

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LIST OF FIGURES

Figure 1. General location of English Bay Lakes System .............................................................. 5

Figure 2. Bathymetric overview of Second Lake ........................................................................... 6

Figure 3. Bathymetric overview of Third Lake ............................................................................. 7

Figure 4. The English Bay Lakes smolt traps. ............................................................................. 10

Figure 5. The English Bay Lakes adult weir................................................................................ 14

LIST OF TABLES

Table 1. Environmental conditions observed at English Bay Lakes, 2014. ................................ 19

Table 2. English Bay Lakes sockeye smolt characteristics.......................................................... 20

Table 3. English Bay Lakes adult sockeye characteristics. ......................................................... 20

Table 4. English Bay Lake egg collection activities BY 2007 - 2014. ........................................ 22

Table 5. English Bay Lakes fry-to-smolt survival ....................................................................... 22

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ABSTRACT

The English Bay Lakes sockeye salmon (Oncorhynchus nerka) enhancement project consists of

an eggtake from the English Bay Lakes system, the incubation and rearing of the resultant

progeny and their release back to the system. In 2012, CIAA expanded this project to enumerate

and characterize both the sockeye salmon smolt and adult returns. This progress report

summarizes the 2014 smolt and adult sockeye salmon enumeration for the English Bay Lakes

system. The report also summarizes the hatchery stocking and gamete collection from the area.

In 2014, 127,131 total sockeye salmon smolt migrated from the English Bay Lakes system.

Based on otolith sampling, 78.7% (±3.5%) were age 1 and the remaining 21.3%(± 3.5%) were

age 2. Based on thermal marks, 25.7% (±3.3%) were identified as being of hatchery origin.

For adult sockeye salmon returning to the English Bay Lakes system, a total of 7,832 fish were

counted through the weir. Age 1.3 made up the majority of the returns (63.2%), followed by age

1.2 (15.2%), age 2.3 (12.8%), and finally age 2.2 (8.8%). Otolith analysis indicated that 14.7%

were identified as being of hatchery origin.

In 2014, 209,000 sockeye salmon fall fry brood year 2012 (BY12) were released into Second

Lake (English Bay Lakes system). At the time of release, the sockeye fall fry averaged 2.4

grams. All released fry were of English Bay Lake origin and were the progeny from non-

enhanced (wild) parents as determined by otolith collection during the 2012 eggtake.

Between 09 September and 20 September, three separate eggtakes occurred. A total of

1,093,000 sockeye salmon eggs were collected and shipped to Trail Lakes Hatchery where they

were fertilized using a delayed fertilization technique. Approximately 847,069 (77.5%) eggs

survived to the eyed stage. Only those eggs determined to be from non-enhanced parents will be

reared to the fall fry stage and released into English Bay Second Lake in October 2015. The

remaining eggs will be for stocking at Tutka Bay Lagoon (smolts) and Lower Cook Inlet lakes as

spring fry.

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INTRODUCTION AND PURPOSE

English Bay Lakes (EBL) is located on Alaska's Kenai Peninsula near the community of

Nanwalek, Alaska. The English Bay Lakes system is a chain of five small lakes with a total

surface area of approximately 200 hectares. The sockeye salmon (Oncorhynchus nerka)

enhancement project has been operating for over 20 years and has been modified several times.

During this report period, this project consisted of an eggtake from the EBL system, the

incubation and rearing of the resulting fry/smolt, and their release back to the EBL system, Port

Graham Bay and Tutka Bay Lagoon. Starting in 2012, Cook Inlet Aquaculture Association

(CIAA) took over the operation to enumerate and characterize the smolt and adult migrations. In

2013, CIAA was awarded an Alaska Sustainable Salmon Fund grant (AKSSF 44717) for funding

the smolt and adult migration components. All hatchery activities (incubation, rearing, stocking,

and gamete collection) were funded solely using CIAA monies.

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PROJECT AREA

English Bay Lakes is located on Alaska's Kenai Peninsula near the community of Nanwalek,

Alaska (Figure 1). It is a system comprised of a chain of five small lakes with a total surface

area of approximately 200 hectares. Second and Third lakes are the two primary salmon

producers.

Figure 1. General location of English Bay Lakes System

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Second Lake has a surface area of 0.70 x 106 m

2 (150 acres), a mean lake depth of 10.9 m, a

maximum depth of 25.9 m, and a total volume of 7.6 x 106 m

3 (Figure 2). Third Lake, drains

into Second Lake, has a surface area of 0.72 m x 106

m2

(166 acres), a mean lake depth of 14.7

m, a maximum depth of 29 m, and a total volume of 10.6 x 106 m

3 (Figure 3). The hydraulic

residence time is approximately 15 days for Second Lake and 35 days for Third Lake. Total

annual outflow of Second Lake is more than 20 times greater than its volume and for Third Lake

the outflow is nearly 10 times its volume (Edmundson et al. 1992).

Figure 2. Bathymetric overview of Second Lake

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Figure 3. Bathymetric overview of Third Lake

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METHODS

In general, English Bay Lake salmon egg take, hatchery incubation, fry rearing, smolt

enumeration, and adult escapement monitoring follow procedures recommended by ADF&G.

These procedures are summarized in the English Bay Lakes Smolt and Adult Enumeration

Manuals (CIAA, 2014).

Environmental Conditions

Daily observations completed at 5:00 P.M. throughout the summer field season, included percent

cloud cover, precipitation to the nearest millimeter, and stage height. Air and water temperature

were recorded every four hours using a Hobo® data logger. All recordings in a 24-hour period

were averaged to provide a daily average air and water temperature. Unfortunately, the Hobo®

data logger stopped working on May 28, 2014 because of dead battery. Data were only collected

at the end of the season as staff were unaware of this situation until then.

Smolt Enumeration

To enumerate the smolt migration, two smolt traps were temporarily placed in English Bay River

approximately 0.29 miles downstream of First Lake. Each smolt trap consisted of a modified net

with nylon mesh leads and a double compartment live box. Each trap connected to each other

and covered the entire width of the river, so that all migrating smolts had to go through either

one of the traps (Figure 4).

For smolt enumeration, fish migrating downstream were directed by the net into a live box where

they were captured, temporarily held, identified to species, counted and released downstream.

Total counts of smolts migrating from the lake system were made until the migration of fish

exceeded 2,000 to 3,000 fish per hour. When this occurred, a 10% sub-sampling procedure was

used to enumerate the migrating smolts.

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To enumerate migrating smolts with the 10% sub-sampling procedure, the counting period was

divided into 20-minute intervals. During each 20-minute interval, migrating fish were directed

into the live-box for two minutes and then counted. During the remaining 18 minutes, migrating

smolts were passed through the weir structure uncounted. The two-minute smolt count was

multiplied by 10 to estimate the number of smolts migrating during the twenty minute interval.

Figure 4. The English Bay Lakes smolt traps.

Assuming the two-minute sub-sampling intervals were randomly distributed throughout sub-

sampling1

and smolt moved through the weir randomly, the total smolt migration was estimated

as follows:

If:

Tc = number of fish counted with the total count procedure,

Ts = number of fish counted with the 10% sub-sampling

procedure,

1 Predetermined randomly selected 2 minute sub-sampling intervals assured random distribution within each 20 minute period.

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T = the total smolt migration,

y = the number of fish counted in each two minute sub-

sampling interval,

n = the number of two minute sub-sampling intervals sampled,

and

N = the number of possible two minute sub-sampling intervals,

Then:

T T Tc s

and the variance is,

v / /T N N n N y y n ns i 2 2

1

And:

C I. .95% for T v Ts s 2

The variance about the estimated smolt migration, T , is equal to the variance about Ts , because

Tc is a total count with 0 variance.

Smolt Characteristics and Enhanced Contribution

To evaluate the success of the enhancement project, staff collected a sample of sockeye smolts

migrating to determine age, weight, and length characteristics of the population as well as the

number of hatchery and naturally produced smolt. All fish released by CIAA have been

thermally marked.2

In 2014, the smolt collected for measurement, age determination, and otolith removal were

sampled in proportion to the daily smolt migration. This was accomplished by collecting every

200th

sockeye smolt that passed through the smolt trap. The numbering sequence began when

the first fish passed through the trap and continued consecutively until the smolt migration was

complete. Age, weight, and length measurements were collected from 628 sockeye smolt (0.5%).

2 The otolith mark is a hatchery induced thermal band produced by controlled temperature changes during incubation.

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Each smolt collected for evaluation was first measured to the nearest millimeter for fork length3

and weighed to the nearest 0.1 gram. Otoliths were removed and placed in a labeled one dram

vial filled with a 10% ethanol solution. At the CIAA office, each otolith was checked for a

hatchery mark following procedures described by Glick and Shields (1993). Otoliths were also

used for aging.

Sockeye smolt characteristics, the proportion of enhanced sockeye smolt and the proportion of

age 1 and 2 sockeye smolt in the migrating population, were estimated with the following

notations and formulas provided by ADF&G.

If:

N total number of migrating smolts,

Nh number of smolts in stratum h, N Nh ,

n total number of smolts sampled,

nh number of smolts sampled in stratum h, n nh ,

a total number of enhanced smolts sampled,

ah number of enhanced smolts sampled in stratum h, a ah ,

p a nh h h / , The proportion of enhanced smolts in stratum h,

q ph h 1 , The proportion of wild smolts in stratum h,

ci number of age i smolts sampled,

chi number of age i smolts sampled in stratum h, c ci hi ,

l c nhi hi hi / , The proportion of age i smolts in stratum h,

m lhi hi 1 , The proportion of other than age i smolts in stratum h,

f n N / , The sampling fraction (assumed equal in all strata),

W N Nh h / , The stratum weight, and,

y the weight or length of the smolt.

3 Standard fork length was measured from the tip of the snout to the fork of the tail.

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Then the proportion of enhanced smolts, P , was estimated as:

/P a n ; with a variance of v P f n W p qh h h / 1 1 ;

which, under proportional allocation, is like the usual simple random sample estimate.

The total number of enhanced smolts, A , was also estimated as:

/ A N a n NP ;

with a variance of:

PvNqpWnfNAv hhhˆ/11ˆ 22

.

Since samples sizes were fairly large and P was not extreme, the normal approximation,

without a correction for continuity, could be used to develop the relative error. Thus, the

95% confidence interval estimate for P and A is:

. P v P196 and AvA ˆ96.1ˆ ;

and, the relative error is:

R E v P P. . . 196 100 and R E v A A. . . 196 100 .

The proportion of age i smolt in the smolt migration was also estimated as:

L cni

i ; with a variance of v L fn

W l mi h hi hih( ) ( ) 1

1;

and, the total number of age i smolts was estimated as:

( )C N Li i ; with a variance of v C N v Li i( ) ( ) 2 .

Confidence interval (95%) estimates for age-class proportion and abundance, assuming 2

age-classes, are:

. ( )L v Li i 2 24 and . ( )C v Ci i 2 24 .

Mean weight or length of age i smolt was also estimated as:

yy

ci

hijjh

i

;

with an approximate variance estimate of:

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v yC

N f

n ny y c y yi

i

h

h h

hij hi hic

n hi ijh

hi

h( )

( )

( )( ) ( )( )

1 1

11

2

22 2

.

The confidence interval (95%) estimate for the mean weight and length is:

y v yi i196. ( ) .

Adult Escapement

To enumerate and collect adult sockeye salmon returning to the English Bay Lakes, a counting

weir was temporarily installed. The weir was constructed of 1.9 cm galvanized pipe and 7.6 cm

aluminum channel spaced 2.54 cm apart (Figure 5).

Figure 5. The English Bay Lakes adult weir.

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Field personnel visually identified by species and counted the adult fish as they ascended English

Bay River. By removing one or two pickets, fish were permitted to pass through the weir.

Initially counts were made at least twice a day. As the number of adult fish passing through the

weir increased, counts were made more frequently.

In addition to the enumeration of the adult sockeye salmon escapement, the sex, age, and

standard fork length of the returning population was also assessed by collecting a sample in

proportion to the daily migration. This was accomplished by collecting every 50th

adult

sockeye that passed through the weir. The numbering sequence began when the first fish passed

through the weir and continued consecutively until the adult migration was complete. The sex of

each adult sockeye salmon was visually determined and the standard fork length measured to the

nearest millimeter. For age and hatchery contribution, field personnel removed the otoliths and

placed them into labeled one dram vials filled with 10% ethanol solution. Each otolith was

checked for a hatchery mark and aged following procedures described by Glick and Shields

(1993). All adult sockeye salmon sacrificed for otolith collection were donated to the Nanwalek

Village.

The proportion of enhanced adult sockeye was estimated using the following notations and

formulae.

If:

N = total number of migrating adults,

n = total number of migrating adults sampled,

a = total number of enhanced migrating adults,

p = the proportion of enhanced migrating adults.

Then the proportion of enhanced adults, P , was estimated as:

/P a n ; with a variance of 1/)/1)(/(ˆ nnanaPv

The total number of enhanced adults, A , was also estimated as:

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/ A N a n NP ; with a variance of: 2ˆˆ NPvAv .

Thus the 95% confidence interval estimate for

AvA ˆ96.1ˆ

A total of 164 otoliths were collected of which all could be read.

Gamete Collection, Incubation and Rearing - Sockeye

Three eggtakes in total were completed. The first eggtake was directed to the back-stocking

program at Second Lake while the remaining two eggtakes were for other stocking programs in

the Lower Cook Inlet.

Male and female adult sockeye salmon from the spawning areas were killed and stripped of their

gametes. For the first eggtake in which resulting progeny would be used for back-stocking

Second Lake (non-enhanced fish), each contributing parent was numbered and the mating

crosses recorded. The gametes were shipped to Trail Lakes Hatchery (TLH) for fertilization,

incubation, and rearing. In addition to removing the gametes, staff also collected the otoliths

from both the male and female parents.

At TLH, each mating cross was recorded and the fertilized eggs were placed into heath stacks

until they reached the eyed stage. Otoliths were ground, polished, and read. Any hatchery

crossed pairings were removed from the EBL back-stocking program at the eyed stage and

placed into production for stocking at Tutka Bay Lagoon (smolt) or Lower Cook Inlet lakes as

spring fry. Only those crossings in which both parents were determined to be wild (non-

enhanced), were kept for back-stocking into Second Lake as fall fry.

All other eggtakes followed the same procedures except mating crosses were not tracked (bulk

incubation) and otoliths were not collected.

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Fish Transport and Stocking

For stocking, all fry were transported by truck from TLH to Trail Lakes in oxygenated transport

tanks where they were transferred to oxygenated tanks located in a fixed wing aircraft. Fry were

flown to Second Lake where they were released.

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RESULTS AND DISCUSSION

Environmental Conditions

The environmental conditions recorded in 2014 are presented in Appendix 1. Between 08 May

and 31 July, the average air temperature could not be calculated due to dead battery with the

Hobo® data logger. The water temperature averaged 13.2oC (± 2.8

oC) (Table 1). Average stage

height was 0.67 ft (± 0.3 ft).

Table 1. Environmental conditions observed at English Bay Lakes, 2014.

Smolt Enumeration - Sockeye

Enumeration of Bear Lake sockeye smolt occurred between 08 May and 08 July. A total of

127,131 sockeye smolt migrated from English Bay Lakes in 2014 (Appendix 2). The 10% sub-

sampling procedure was not used.

A total of 628 sockeye smolt otoliths were collected of which 606 were readable. Otolith samples

were collected from every 200th

sockeye smolt that went through the trap (0.5%). Of the

migrating smolts, 78.7% (± 3.5%) were age 1 and 21.1% (± 3.5%) were age 2. The age 1 smolts

averaged 68 mm ( 0.5 mm) in length and 2.4 g ( 0.3 g) in weight. The age 2 smolts averaged

74 mm (± 0.6 mm) in length and 3.2 g (± 0.2 g) in weight (Table 2). Based on the presence of

hatchery induced thermal marks, it was estimated that 25.7% ( 3.3%) of the sockeye smolt were

of hatchery origin (Table 2).

No. of Days

<50% >50% Days Temperature (C)

Total Cloud Cloud 100% Meas. Precip Air

Year Days Clear Cover Cover Overcast Rain Precip (mm) Avg Range Avg Range

2012 57 17 17 9 10 4 21 152 10.4 (3-20) 7.6 (2-12)

2013 79 32 9 11 18 8 22 90 9.9 (2-20) 10.4 (5-16)

2014 82 22 19 17 10 14 36 230.8 inc inc 13.2 (7-17)

Water

Rain days are counted as days with measurable precipitation and 100% overcast is measured as those days indicated as 100% overcast with or

without measurable precipation.

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Table 2. English Bay Lakes sockeye smolt characteristics.

Adult Escapement - Sockeye

Adult sockeye salmon began arriving at the weir on 23 May 2013 and continued to migrate until

30 July 2014 (Appendix 3). During this time, 7,832 adults were captured and counted at the weir

(Table 3). Otolith samples were collected from every 50th

fish that passed through the weir

(2%). A total of 164 otolith samples were collected of which all could be read. The returning

major age groups for adult sockeye included ages 1.2 (15.2%), 1.3 (62.8%), 2.2 (9.1%), and 2.3

(12.8%).

A summary of mean age and length, by age class, for adult sockeye salmon escapement to

English Bay Lakes for 2014 is presented in Appendix 4.

Table 3. English Bay Lakes adult sockeye characteristics.

Based on the presence of thermal marks, it was estimated that 14.7% of the adults were of

hatchery origin. Furthermore, of the fish which were determined to be of enhanced origin, brood

year contribution was determined to be as follows: BY09 = 11.0% (±4.8%) and BY10 = 3.7%

(±2.9%). Of the fish which were determined to come from natural production (85.3%), the

Age Composition Average Length (mm)

% No.

Year Number 95%CI Hatch. 95%CI Wild 0.0 95% CI 1.0 95% CI 2.0 95% CI 3.0 95% CI 0.0 1.0 CI 2.0 CI 0.0 1.0 CI 2.0 CI

2012* 113,400 0 19.2 4.4 91,600 98,200 3,900 15,200 3,900 66 1.0 68 1.1 2.4 0.3 2.8 0.3

2013 113,900 0 41.3 3.9 66,900 84,700 4,200 29,200 4,184 68 0.7 76 3.8 2.5 1.3 4.1 0.6

2014 127,131 0 25.7 3.3 94,404 100,068 4,505 26,853 4,494 68 0.5 74 0.6 2.4 0.3 3.2 0.2

Avg. 118,100 0 28.7 3.9 84,300 94,323 4,200 23,800 4,200 67 0.7 73 1.8 2.4 0.6 3.4 0.4

Total 354,431 0.0 282,968 71,253 0.0

Average Length rounded to nearest mm, Average Weight rouinded to nearset 0.1 g. All other figures have been rounded to nearest 100 fish.

*Care should be taken in interpreting results in 2012 as the sampling was not proportional to the daily migrations.

Average Weight (g)

Weir Sockeye Salmon

Retun Age Composition

Year Total 0.2 1.1 0.3 1.2 0.4 1.3 2.1 2.2 2.3 3.2 3.3

2012 3,700 0 0 0 1,017 0 1,526 0 145 1,017 0 0

2013 12,700 0 0 0 1,137 0 7,284 0 1,756 2,480 0 0

2014 7,832 0 0 0 1,194 0 4,949 0 716 1,003 0 0

Avg 8,077 0 0 0 1,116 0 4,586 0 872 1,500 0 0

% of Avg 100% 0.0% 0.0% 0.0% 13.8% 0.0% 56.8% 0.00% 10.8% 18.6% 0.00% 0.0%

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brood year contribution was determined to be as follows: BY08 = 12.8%; BY09 = 61% and

BY10 = 11.6%.

Hatchery Activities

Stocking

In 2014, 209,000 sockeye fall fry (BY13; 5H) were released into English Bay Lake. These fish

will migrate in 2015/2016 as smolts. At the time of release, the sockeye fry averaged 2.4 g.

Eggtake

On 09 September 2014, a total of 464,000 sockeye salmon eggs were collected. A total of 384

broodfish were used providing an average fecundity of 2,419 eggs/female. A total of 192 females

and 192 males were crossed at 1:1 ratio. All 384 broodfish were sampled for otoliths. Of the 384

otoliths, 57 fish (14.8%) was determined to have a thermal mark (enhanced fish) while the

remaining 327 (85.2%) did not. Once the eggs reached the eyed stage, those crosses which were

a) identified with a thermal mark, and b) could not be read were removed from the English Bay

Lakes back-stocking group and moved into general production for stocking at either Tutka Bay

Lagoon (smolts) or Lower Cook Inlet lakes (spring fry).

Sockeye eggs were also collected on two other occasions for Tutka Bay Lagoon and Lower Cook

Inlet lakes stocking programs. An additional 629,154 eggs were collected. Including the

broodfish used for back-stocking a total of 877 adult salmon were used (includes broodstock,

mortalities and inviable). Overall average fecundity was 2,195 eggs/female. Overall survival to

the eyed stage was 77.5%.

Table 4 provides an overview of egg collection activities for enhancement at English Bay Lakes

since brood year 2007.

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Table 4. English Bay Lake egg collection activities BY 2007 - 2014.

Fry-to-Smolt Survival

Migrating smolts in 2014 were stocked either as fry in 2012 (BY11 - Age 2) and 2013 (BY12 -

Age 1). Based on age classification from otoliths, the fry-to-smolt survival for each brood year of

fry stocking can be determined. Total smolt migration count (count plus fish sampled for otolith

and mortalities) was used to determine fry-to-smolt survival. BY10 had a 15.2% fry-to-smolt

survival while BY11 had a 19.6% survival. BY12 data is incomplete, but is estimated at 12.3%

currently. This information is summarized in Table 5.

Table 5. English Bay Lakes fry-to-smolt survival

Sockeye

Brood Brood Green Eyed

Year Stock Eggs Eggs %

2007 372 510,000 409,000 80.2

2008

2009 240 307,000 288,000 93.8

2010 1,023 1,113,000 1,013,000 91.0

2011 2,100 2,504,876 2,204,262 88.0

2012 412 432,022 383,597 88.8

2013 1,661 2,120,000 1,904,000 89.81

2014 846 1,093,154 847,069 77.49

Total 8,080,052 7,048,928

Ave 1,154,293 1,006,990 87.0

Brood No. Fry Size No. Hatch. % Hatch.

Year Escap. Stocked (g) Smolt Smolt Survival

2007 ND 246,000 2.83

2008 ND 0

2009a ND 202,000 3.4 15,196 2,918 1.44%

2010 ND 203,300 2.86 127,477 30,944 15.22%

2011 ND 213,000 2.78 111,218 41,749 19.60%

2012 * 3,293 211,000 2.66 100,028 26,007 12.33%

2013 * 10,904 209,000 2.4

2014 6,986

Ave1 7,099 183,471 2.82 119,347 36,347 17.4%

a Age 1 smolts cannot be determined due to insufficient data. This year class

is incomplete

* indicates incomplete brood year.1 does not include incomplete brood years

Sockeye

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Marine Survival

Based on information collected from migrating sockeye smolt and returning sockeye adults (to

the weir), it is possible to provide an estimate of the survival of hatchery fish in the marine

environment. BY10 is estimated at 0.9% survival but this data set is incomplete at this time.

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RECOMMENDATIONS

The monitoring of smolt and adult returns as it relates to the AKSSF grant ends with the

enumeration in 2015. The fry-to-smolt survival so far is similar to other systems like Bear and

Hidden lakes but there are still insufficient returns to make any conclusion as to the smolt-to-

adult survival.

With the Tutka sockeye broodstock program now fully developed, an evaluation of whether the

enumeration project continues in 2016 will need to be done to determine the benefits of the

program to the subsistence and commercial fisheries.

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LITERATURE CITED

CIAA (2014). English Bay Lakes Adult Enumeration Procedures Manual.

CIAA (2014). English Bay Lakes Smolt Enumeration Procedures Manual.

Edmundson, J.A., Kyle, G.B. and Balland, T. (1992). Rearing Capacity, Escapement Level, and

Potential for Sockeye Salmon (Oncorhynchus nerka) Enhancement in English Bay Lakes.

Alaska Department of Fish and Game, Division of Fisheries Rehabilitation, Enhancement

and Development Number 120.

Glick, W., and Shields, P. (1993). Juvenile Salmonid Otolith Extraction and Preparation

Techniques for Microscopic Examination. Soldotna: Alaska Department of Fish and

Game, Division of Commercial Fisheries Management and Development.

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APPENDICES

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Appendix 1. English Bay Lakes 2014 - Environmental Conditions

Date Sky RainStaff

GaugeChange

Water

TempAir Temp Date Sky Rain

Staff

GaugeChange

Water

TempAir Temp

1-May 1-Jun 3 10 2.00 1.25 10.6 No Data

2-May 2-Jun 3 0 1.80 1.05 11 No Data

3-May 3-Jun 2 0 1.50 0.75 11.6 No Data

4-May 4-Jun 3 0 1.15 0.40 11.9 No Data

5-May 5-Jun 3 0.25 0.72 -0.03 11.8 No Data

6-May 6-Jun 4 0 0.64 -0.11 11.7 No Data

7-May 7-Jun 5 9.5 0.62 -0.13 11.7 No Data

8-May 1 0 0.75 0.00 7.3 7.7 8-Jun 1 0 0.62 -0.13 11.7 No Data

9-May 1 0 0.70 -0.05 7.6 9.3 9-Jun 2 2 0.60 -0.15 11.8 No Data

10-May 1 0 0.69 0.69 8 7.8 10-Jun 2 7 0.58 -0.17 12.3 No Data

11-May 1 0 0.68 0.68 8.3 6.8 11-Jun 2 0.5 0.56 -0.19 12.2 No Data

12-May 1 0 0.67 0.67 8.7 9.2 12-Jun 5 12 0.64 -0.11 11.9 No Data

13-May 1 0 0.67 0.67 9.1 10.6 13-Jun 5 12 0.60 -0.15 12.3 No Data

14-May 1 0 0.65 0.65 9.4 10 14-Jun 2 7 0.78 0.03 12.9 No Data

15-May 1 0 0.63 0.63 9.8 9.5 15-Jun 3 0.5 0.78 0.03 12.6 No Data

16-May 1 0 0.59 0.59 10.5 12 16-Jun 5 8 0.70 -0.05 12.5 No Data

17-May 1 0 0.58 0.58 10.5 11.5 17-Jun 2 12 0.72 -0.03 12.6 No Data

18-May 2 0 0.57 0.57 10.5 8.1 18-Jun 4 0 0.72 -0.03 12.4 No Data

19-May 3 0 0.55 0.55 9.9 10 19-Jun 4 0 0.84 0.09 12.8 No Data

20-May 4 0 0.55 0.55 9.9 6.9 20-Jun 1 0 0.84 0.09 12.4 No Data

21-May 3 0 0.54 0.54 10.1 8.2 21-Jun 4 13 0.76 0.01 12.4 No Data

22-May 2 0 0.54 0.54 10.5 8.8 22-Jun No Data No Data No Data No Data 12.6 No Data

23-May 2 0 0.52 0.52 10.7 9.8 23-Jun No Data No Data No Data No Data 13.2 No Data

24-May 1 0 0.50 0.50 11 11 24-Jun 2 0 0.62 -0.13 13.8 No Data

25-May 1 0 0.50 0.50 10.9 9.9 25-Jun 3 0 0.59 -0.16 13.4 No Data

26-May 2 0 0.48 0.48 10.6 10.1 26-Jun 4 0 0.54 -0.21 13.5 No Data

27-May 5 3 0.46 0.46 10.6 10.1 27-Jun 2 0 0.54 -0.21 14.2 No Data

28-May 3 1 0.48 0.48 10.5 No Data 28-Jun 1 0 0.52 -0.23 14.5 No Data



31-May 5 24 1.90 1.90 10.3 No Data

Sky Conditions

1 = clear

2 = less than 50% cloud cover

3 = more than 50% cloud cover

4 = 100% overcast

5 = rain

32

Appendix 1 (continued). English Bay Lakes 2014 - Environmental Conditions

Date Sky RainStaff

GaugeChange

Water

TempAir Temp

1-Jul 1 0 0.50 -0.25 15.2 No Data

2-Jul 1 0 0.50 -0.25 15.9 No Data

3-Jul 2 0.00 0.52 -0.23 16.3 No Data

4-Jul 3 0.00 0.50 -0.25 16.6 No Data

5-Jul 3 0.00 0.50 -0.25 16.4 No Data

6-Jul 4 12.00 0.46 -0.29 16.1 No Data

7-Jul 5 3.50 0.48 -0.27 16.4 No Data

8-Jul 2 0.25 0.50 -0.25 16.2 No Data

9-Jul 3 10.00 0.58 -0.17 15.6 No Data

10-Jul 5 25.00 0.68 -0.07 15.6 No Data

11-Jul 4 13.00 0.60 -0.15 15.4 No Data

12-Jul 5 1.00 1.00 0.25 15.6 No Data

13-Jul 3 1.30 0.90 0.15 15.7 No Data

14-Jul 2 4.00 1.10 0.35 15.9 No Data

15-Jul 1 0.25 1.00 0.25 16.4 No Data

16-Jul 1 0.00 0.85 0.10 17 No Data

17-Jul 2 0.00 0.72 -0.03 17.2 No Data

18-Jul 4 0.00 0.58 -0.17 17.2 No Data

19-Jul 3 1.00 0.56 -0.19 17 No Data

20-Jul 2 0.00 0.50 -0.25 17 No Data

21-Jul 3 0.00 0.50 -0.25 16.9 No Data

22-Jul 3 0.00 0.48 -0.27 17.1 No Data

23-Jul 3 0.25 0.46 -0.29 16.9 No Data

24-Jul 5 0.25 0.48 -0.27 16.6 No Data

25-Jul 5 1.00 0.44 -0.31 16.6 No Data

26-Jul 2 0.25 0.48 -0.27 16.9 No Data

27-Jul 1 0.00 0.46 -0.29 16.4 No Data

28-Jul 5 9.50 0.48 -0.27 16.8 No Data

29-Jul 1 0.50 0.46 -0.29 16.7 No Data

30-Jul 1 0.00 0.46 -0.29 16.5 No Data

31-Jul

Sky Conditions

1 = clear

2 = less than 50% cloud cover

3 = more than 50% cloud cover

4 = 100% overcast

5 = rain

33

Appendix 2. English Bay Lakes 2014 - Smolt Migration

Date Daily Otoliths Cumm % Smpl Daily Cumm Daily Cumm Daily Cumm

01-May 0 0

02-May 0 0

03-May 0 0

04-May 0 0

05-May 0 0

06-May 0 0

07-May 0 0

08-May 253 1 253 27 27

09-May 481 2 734 111 138

10-May 427 2 1,161 0.47% 26 164 0 0

11-May 1,144 6 2,305 0.52% 51 215 0 0

12-May 4,012 20 6,317 0.50% 95 310 0 0

13-May 4,832 24 11,149 0.50% 75 385 0 0

14-May 5,996 30 17,145 0.50% 53 438 0 0

15-May 6,617 33 23,762 0.50% 101 539 0 0

16-May 14,196 71 37,958 0.50% 128 667 0 0

17-May 8,534 43 46,492 0.50% 101 768 0 0

18-May 10,907 54 57,399 0.50% 100 868 0 0

19-May 7,724 39 65,123 0.50% 70 938 0 0

20-May 6,299 32 71,422 0.51% 58 996 0 0

21-May 3,554 17 74,976 0.48% 26 1,022 0 0

22-May 2,700 14 77,676 0.52% 29 1,051 0 0

23-May 3,827 19 81,503 0.50% 34 1,085 0 0

24-May 3,920 20 85,423 0.51% 32 1,117 0 0

25-May 2,342 11 87,765 0.47% 26 1,143 0 0

26-May 2,957 14 90,722 0.47% 55 1,198 0 0

27-May 1,856 10 92,578 0.54% 53 1,251 0 0

28-May 1,963 10 94,541 0.51% 62 1,313 0 0

29-May 2,099 10 96,640 0.48% 54 1,367 0 0

30-May 4,954 25 101,594 0.50% 116 1,483 0 0

31-May 253 1 101,847 0.40% 2 1,485 0 0

01-Jun 101,847 #DIV/0! 1,485 0 0

02-Jun 101,847 #DIV/0! 1,485 0 0

03-Jun 1,119 6 102,966 0.54% 72 1,557 0 0

04-Jun 2,283 11 105,249 0.48% 298 1,855 0 0

05-Jun 1,473 7 106,722 0.48% 105 1,960 0 0

06-Jun 1,053 5 107,775 0.47% 85 2,045 0 0

07-Jun 1,175 6 108,950 0.51% 72 2,117 0 0

08-Jun 584 3 109,534 0.51% 40 2,157 0 0

09-Jun 1,211 6 110,745 0.50% 61 2,218 0 0

10-Jun 1,197 6 111,942 0.50% 76 2,294 0 0

11-Jun 645 3 112,587 0.47% 54 2,348 0 0

12-Jun 631 3 113,218 0.48% 24 2,372 0 0

13-Jun 878 5 114,096 0.57% 33 2,405 0 0

14-Jun 913 4 115,009 0.44% 47 2,452 0 0

15-Jun 981 5 115,990 0.51% 62 2,514 0 0

16-Jun 871 4 116,861 0.46% 35 2,549 0 0

17-Jun 1,489 8 118,350 0.54% 84 2,633 0 0

18-Jun 972 5 119,322 0.51% 73 2,706 0 0

19-Jun 889 4 120,211 0.45% 66 2,772 0 0

20-Jun 953 4 121,164 0.42% 68 2,840 0 0

21-Jun 813 4 121,977 0.49% 53 2,893 0 0

22-Jun 709 3 122,686 0.42% 42 2,935 0 0

23-Jun 693 5 123,379 0.72% 33 2,968 0 0

24-Jun 682 3 124,061 0.44% 28 2,996 0 0

25-Jun 609 3 124,670 0.49% 29 3,025 0 0

26-Jun 364 1 125,034 0.27% 15 3,040 0 0

27-Jun 431 2 125,465 0.46% 9 3,049 0 0

28-Jun 311 4 125,776 1.29% 21 3,070 0 0

29-Jun 338 126,114 0.00% 14 3,084 0 0

30-Jun 213 126,327 0.00% 20 3,104 0 0

01-Jul 200 126,527 0.00% 18 3,122 0 0

02-Jul 109 126,636 0.00% 10 3,132 0 0

03-Jul 165 126,801 0.00% 12 3,144 0 0

04-Jul 195 126,996 0.00% 12 3,156 0 0

05-Jul 56 127,052 0.00% 3 3,159 0 0

06-Jul 42 127,094 0.00% 6 3,165

07-Jul 25 127,119 0.00% 6 3,171

08-Jul 12 127,131 0 3,171

09-Jul

10-Jul

11-Jul

Totals 127,131 628 127,131 0.49% 3,171 3,171 0 0 0 0

202

*Flood event - May 21- June 2

Sockeye Coho Dolly Varden Rainbow Trout

34

Appendix 3. English Bay Lakes 2014 - Adult Sockeye Salmon Migration.

Lake Escapement Daily Cumm.

Date Sockeye Otoliths % sampled Total Total

21-May 0 0

22-May 0 0

23-May 1 1 1

24-May 5 5 6

25-May 1 1 7

26-May 1 1 8

27-May 1 0.00% 1 9

28-May 0 0 9

29-May 0 0 9

30-May 1 0.00% 1 10

31-May 0 0 10

01-Jun 0 0 10

02-Jun 0 0 10

03-Jun 2 0.00% 2 12

04-Jun 95 2 2.11% 95 107

05-Jun 31 0.00% 31 138

06-Jun 5 0.00% 5 143

07-Jun 22 1 4.55% 22 165

08-Jun 114 2 1.75% 114 279

09-Jun 14 0.00% 14 293

10-Jun 17 1 5.88% 17 310

11-Jun 131 2 1.53% 131 441

12-Jun 14 1 7.14% 14 455

13-Jun 45 1 2.22% 45 500

14-Jun 513 10 1.95% 513 1,013

15-Jun 25 0.00% 25 1,038

16-Jun 369 7 1.90% 369 1,407

17-Jun 127 3 2.36% 127 1,534

18-Jun 452 9 1.99% 452 1,986

19-Jun 74 1 1.35% 74 2,060

20-Jun 136 3 2.21% 136 2,196

21-Jun 212 4 1.89% 212 2,408

22-Jun 279 6 2.15% 279 2,687

23-Jun 214 4 1.87% 214 2,901

24-Jun 175 3 1.71% 175 3,076

25-Jun 277 6 2.17% 277 3,353

26-Jun 32 0.00% 32 3,385

27-Jun 342 7 2.05% 342 3,727

28-Jun 254 5 1.97% 254 3,981

29-Jun 570 11 1.93% 570 4,551

30-Jun 261 9 3.45% 261 4,812

01-Jul 41 0.00% 41 4,853

02-Jul 63 2 3.17% 63 4,916

03-Jul 248 5 2.02% 248 5,164

04-Jul 308 7 2.27% 308 5,472

05-Jul 113 3 2.65% 113 5,585

06-Jul 404 8 1.98% 404 5,989

07-Jul 123 2 1.63% 123 6,112

08-Jul 61 1 1.64% 61 6,173

09-Jul 69 1 1.45% 69 6,242

10-Jul 262 5 1.91% 262 6,504

11-Jul 56 2 3.57% 56 6,560

12-Jul 101 2 1.98% 101 6,661

13-Jul 56 1 1.79% 56 6,717

14-Jul 102 2 1.96% 102 6,819

15-Jul 42 0.00% 42 6,861

16-Jul 110 2 1.82% 110 6,971

17-Jul 48 0.00% 48 7,019

18-Jul 157 4 2.55% 157 7,176

19-Jul 151 3 1.99% 151 7,327

20-Jul 139 5 3.60% 139 7,466

21-Jul 52 1 1.92% 52 7,518

22-Jul 65 1 1.54% 65 7,583

23-Jul 82 3 3.66% 82 7,665

24-Jul 44 1 2.27% 44 7,709

25-Jul 16 0.00% 16 7,725

26-Jul 28 0.00% 28 7,753

27-Jul 17 2 11.76% 17 7,770

28-Jul 26 0.00% 26 7,796

29-Jul 15 0.00% 15 7,811

30-Jul 21 3 14.29% 21 7,832

31-Jul 0 7,832

Total 7,832 164 2.09% 7,832 7,832

English Bay Lakes Adult Sockeye Weir Return

35

Appendix 4. English Bay Lakes 2014 – Adult Sockeye Age and Sex Characteristics

1.1 1.2 1.3 2.1 2.2 2.3 Total

Sample Period: June 4 - July 30, 2014

Males (No.) 0 525 1,958 0 334 621 3,438

Percent 0.0% 15.3% 56.9% 0.0% 9.7% 18.1% 43.9%

Sample Size 0 11 41 0 7 13 72

Total Sample Size 72

Mean Length (mm) 568 580 587 573 577

Std. Deviation 41.4 39.3 36.2 20.5 36.4

Std. Error 12.5 6.1 13.7 5.7 4.3

Mean Weight (kg) 2.93 3.03 3.03 3.14 3.04

Std. Deviation 0.55 0.49 0.60 0.54 0.51

Std. Error 0.17 0.08 0.23 0.15 0.06

Females (No.) 0 669 2,961 0 382 382 4,394

Percent 0.0% 15.2% 67.4% 0.0% 8.7% 8.7% 56.1%

Sample Size 0 14 62 0 8 8 92


Mean Length (mm) 533 545 532 550 543

Std. Deviation 49.6 37.5 27.5 43.2 39.1

Std. Error 13.2 4.8 9.7 15.3 4.1

Mean Weight (kg) 2.10 2.36 2.26 2.45 2.32

Std. Deviation 0.51 0.39 0.27 0.63 0.43

Std. Error 0.14 0.05 0.09 0.22 0.04

Both Sexes (No.) 0 1,194 4,919 0 716 1,003 7,832

Percent 0.0% 15.2% 62.8% 0.0% 9.1% 12.8% 100.0%

Sample Size 0 25 103 0 15 21 164


Mean Length (mm) 548 559 557 564 558

Std. Deviation 48.4 41.7 41.8 32.2 41.6

Std. Error 9.7 4.1 10.8 7.0 3.2

Mean Weight (kg) 2.47 2.63 2.62 2.88 2.63

Std. Deviation 0.67 0.54 0.59 0.66 0.59

Std. Error 0.13 0.05 0.15 0.14 0.05

Total means for males, females and both sexes are generated from the total sample size

Age

36

Appendix 5. English Bay Lakes 2014 – Sockeye Smolt Hourly Counts

Sum of SockeyeColumn Labels

Row Labels 12:00:00 AM 1:00:00 AM 2:00:00 AM 3:00:00 AM 4:00:00 AM 5:00:00 AM 6:00:00 AM 7:00:00 AM 8:00:00 AM 9:00:00 AM 10:00:00 AM 11:00:00 AM 12:00:00 PM 1:00:00 PM 2:00:00 PM 3:00:00 PM 4:00:00 PM 5:00:00 PM 6:00:00 PM 7:00:00 PM 8:00:00 PM 9:00:00 PM 10:00:00 PM 11:00:00 PM Grand Total

5/8/2014 34 46 43 12 11 17 2 0 0 0 0 8 0 3 0 0 2 5 19 21 30 253

5/9/2014 89 76 82 75 18 10 3 1 2 3 0 2 0 6 17 10 28 7 2 3 6 4 12 25 481

5/10/2014 101 160 55 11 24 16 11 1 1 2 1 0 0 1 1 2 4 1 2 0 3 7 11 12 427

5/11/2014 307 212 222 101 63 15 8 12 7 8 4 3 1 6 4 3 3 2 3 18 11 23 26 82 1144

5/12/2014 952 723 182 101 89 77 1 2 4 6 3 0 2 16 27 43 33 8 22 34 51 66 90 1480 4012

5/13/2014 1678 711 262 149 104 67 22 17 21 45 52 39 52 46 62 85 120 245 283 103 118 122 153 276 4832

5/14/2014 563 312 433 112 83 67 22 41 73 109 136 103 85 76 69 82 209 233 551 112 151 370 1193 811 5996

5/15/2014 1711 607 302 261 115 73 18 32 49 37 87 76 136 324 438 530 455 225 535 92 101 123 65 225 6617

5/16/2014 1743 1327 1093 521 341 103 31 36 68 82 109 16 772 217 976 1437 1699 660 541 518 209 171 169 1357 14196

5/17/2014 1163 1093 875 377 194 173 98 116 109 215 127 91 76 87 52 142 136 218 316 243 529 304 440 1360 8534

5/18/2014 1043 948 552 373 215 131 225 103 96 89 56 88 815 853 780 445 589 413 352 1002 133 152 106 1348 10907

5/19/2014 942 1001 921 843 301 106 96 47 82 76 32 45 112 150 372 546 452 141 125 153 138 253 332 458 7724

5/20/2014 974 933 641 211 113 84 63 74 96 103 207 152 264 209 197 157 136 166 53 28 41 153 571 673 6299

5/21/2014 212 149 352 240 106 55 52 49 63 40 56 23 31 40 216 189 362 309 154 33 44 216 252 311 3554

5/22/2014 263 329 119 110 85 208 73 21 12 10 16 19 33 548 248 24 28 45 73 23 26 42 115 230 2700

5/23/2014 379 225 143 87 198 231 315 13 24 33 52 98 72 129 207 451 159 94 123 133 108 89 216 248 3827

5/24/2014 346 292 107 281 65 54 282 152 198 65 183 102 256 196 153 146 145 24 101 72 113 274 102 211 3920

5/25/2014 93 104 211 102 83 94 96 18 8 62 114 195 108 11 162 100 108 84 126 92 101 83 153 34 2342

5/26/2014 112 143 271 170 142 45 253 9 84 43 82 51 11 342 508 259 74 37 96 31 15 52 43 84 2957

5/27/2014 109 108 77 108 67 56 83 24 15 29 32 17 21 20 43 96 261 48 11 36 13 59 413 110 1856

5/28/2014 104 211 127 95 83 58 65 59 47 53 31 72 54 26 33 36 115 194 239 35 52 18 51 105 1963

5/29/2014 208 166 101 79 133 119 303 27 31 29 42 19 21 36 21 15 14 19 23 34 38 54 206 361 2099

5/30/2014 534 530 401 372 436 534 115 32 57 50 82 45 13 33 15 186 134 217 164 31 52 73 405 443 4954

5/31/2014 253 253

6/1/2014

6/2/2014

6/3/2014 143 210 117 98 211 115 15 50 110 50 1119

6/4/2014 93 114 212 111 107 118 103 31 29 43 35 52 47 76 129 173 88 127 125 93 88 104 101 84 2283

6/5/2014 79 83 94 112 93 74 52 43 57 32 87 43 30 88 52 71 47 57 75 24 37 26 54 63 1473

6/6/2014 63 77 99 125 53 46 49 27 84 13 34 10 39 11 32 27 24 13 6 41 72 28 33 47 1053

6/7/2014 93 81 133 108 93 74 32 14 25 12 36 48 35 41 50 27 12 18 27 34 56 41 58 27 1175

6/8/2014 33 46 89 86 74 51 54 10 0 0 12 4 0 9 4 2 5 14 18 8 5 18 27 15 584

6/9/2014 89 93 101 97 89 57 43 15 27 16 32 49 34 45 53 24 10 20 33 39 46 58 63 78 1211

6/10/2014 77 94 109 99 74 67 51 23 14 27 19 20 9 9 24 36 15 92 71 17 73 54 61 62 1197

6/11/2014 39 46 53 79 77 64 37 19 14 22 15 12 17 18 12 7 4 10 5 9 7 21 33 25 645

6/12/2014 41 44 65 21 22 11 52 9 15 7 6 24 9 31 54 23 43 33 15 15 17 19 24 31 631

6/13/2014 81 84 73 42 59 31 41 12 17 14 9 20 15 13 8 7 14 29 41 53 41 61 39 74 878

6/14/2014 48 67 86 94 101 53 15 19 23 14 13 17 9 12 12 21 15 32 28 31 43 39 57 64 913

6/15/2014 74 115 95 87 43 49 49 22 14 19 24 10 14 27 39 34 33 20 25 17 24 37 49 61 981

6/16/2014 85 71 84 63 78 42 41 17 15 20 14 12 9 17 14 10 32 20 21 19 26 33 49 79 871

6/17/2014 78 95 73 85 69 43 43 13 20 32 8 8 35 46 103 109 79 80 68 43 52 74 81 152 1489

6/18/2014 55 136 84 95 36 19 52 29 10 53 14 18 26 25 45 52 42 78 41 12 8 10 9 23 972

6/19/2014 39 83 54 61 36 24 56 44 12 16 29 50 61 67 40 27 26 24 25 21 32 22 25 15 889

6/20/2014 53 68 47 86 26 13 39 15 27 63 23 38 57 57 18 13 25 41 47 39 45 38 32 43 953

6/21/2014 86 39 41 33 82 26 42 29 22 25 13 28 31 27 25 15 30 42 48 34 21 4 43 27 813

6/22/2014 64 77 66 42 38 26 31 27 32 15 20 22 22 37 48 12 9 12 24 22 17 14 8 24 709

6/23/2014 40 32 88 47 21 12 33 16 11 15 27 10 8 18 54 54 44 16 14 63 22 8 25 15 693

6/24/2014 28 33 21 9 8 18 11 17 23 16 27 13 31 9 26 108 64 38 61 0 25 36 15 45 682

6/25/2014 23 18 40 16 26 8 20 12 31 28 39 44 15 43 84 16 42 51 0 23 5 7 5 13 609

6/26/2014 21 9 29 46 14 0 14 17 13 16 23 27 12 11 19 24 32 9 5 8 3 11 4 2 369

6/27/2014 27 12 31 18 7 4 30 8 11 42 15 23 6 12 8 20 75 27 13 10 7 16 9 431

6/28/2014 14 24 12 9 2 9 7 12 10 19 11 5 7 8 13 12 22 17 53 17 2 10 16 311

6/29/2014 15 12 21 10 4 4 7 11 8 12 17 23 10 22 21 19 31 57 3 6 14 9 4 6 346

6/30/2014 5 2 7 10 1 10 8 5 12 7 20 14 31 9 2 4 25 17 5 1 3 4 11 213

7/1/2014 9 5 2 7 1 0 2 3 62 73 2 0 1 0 2 1 3 5 9 2 1 6 0 4 200

7/2/2014 14 3 1 0 11 6 3 7 4 5 8 4 3 0 5 2 1 3 1 4 1 0 15 8 109

7/3/2014 2 16 7 4 5 3 0 2 5 3 10 12 0 7 8 13 10 1 2 11 28 9 4 3 165

7/4/2014 3 2 6 4 2 1 7 12 3 10 0 37 23 21 3 4 3 2 1 6 35 8 2 195

7/5/2014 0 3 5 1 1 0 0 2 5 0 10 6 3 7 0 0 2 1 3 4 2 1 3 4 63

7/6/2014 0 1 3 2 0 1 1 1 0 2 5 13 4 5 2 0 1 0 0 0 1 0 0 0 42

7/7/2014 3 0 2 0 3 0 1 0 0 0 3 0 2 0 0 5 4 0 1 0 0 0 0 1 25

7/8/2014 0 0 2 0 1 1 3 0 0 5 0 12

Grand Total 15277 12301 9622 6598 4636 3453 3481 1444 1805 1840 2197 1940 3605 4217 5642 5947 6094 4458 4800 3592 2919 3612 6214 11457 127151

37

Appendix 6. English Bay Lakes 2014 – Sockeye Adult Hourly Counts

Sum of Sockeye Column Labels

Row Labels 12:00 am 1:00 AM 2:00 AM 3:00 AM 4:00 AM 5:00 AM 6:00 AM 7:00 AM 8:00 AM 9:00 AM 10:00 AM 11:00 AM 12:00 PM 1:00 PM 2:00 PM 3:00 PM 4:00 PM 5:00 PM 6:00 PM 7:00 PM 8:00 PM 9:00 PM 10:00 PM 11:00 PM Grand Total

5/23/2014 1 0 0 0 1

5/24/2014 1 4 0 5

5/25/2014 1 0 0 0 1

5/26/2014 1 0 0 0 1

5/27/2014 1 0 0 0 1

5/28/2014

5/29/2014 95 95

5/30/2014

5/31/2014

6/1/2014

6/2/2014

6/3/2014 2 0 0 0 0 0 2

6/4/2014 95 95

6/5/2014 16 5 10 31

6/6/2014 0 0 3 1 0 0 1 5

6/7/2014 10 3 5 4 0 0 22

6/8/2014 15 10 4 0 0 0 75 104

6/9/2014 7 3 2 2 0 0 14

6/10/2014 3 5 2 4 3 0 17

6/11/2014 10 50 60 11 0 0 131

6/12/2014 10 3 1 14

6/13/2014 3 15 10 7 0 0 10 45

6/14/2014 25 200 53 210 0 0 25 513

6/15/2014 10 12 3 0 0 0 25

6/16/2014 251 107 1 0 0 359

6/17/2014 38 24 30 8 0 0 27 127

6/18/2014 105 347 452

6/19/2014 18 44 12 74

6/20/2014 18 44 12 16 90

6/21/2014 41 9 162 212

6/22/2014 31 3 88 147 10 0 279

6/23/2014 12 109 70 23 214

6/24/2014

6/25/2014 12 36 201 28 277

6/26/2014 14 18 32

6/27/2014 5 36 301 342

6/28/2014 254 254

6/29/2014 348 222 570

6/30/2014 200 0 61 261

7/1/2014 4 2 35 41

7/2/2014 3 22 38 0 63

7/3/2014 188 0 60 248

7/4/2014 71 317 388

7/5/2014 113 113

7/6/2014 56 0 8 340 404

7/7/2014 30 30

7/8/2014 15 0 46 61

7/9/2014 12 2 43 12 69

7/10/2014 25 130 90 17 262

7/11/2014 39 0 17 56

7/12/2014 79 22 101

7/13/2014 36 20 0 0 56

7/14/2014 18 84 102

7/15/2014 2 40 42

7/16/2014 84 26 0 110

7/17/2014 1 9 8 12 15 3 48

7/18/2014 2 7 18 31 59 40 157

7/19/2014 10 62 18 61 0 151

7/20/2014 5 34 50 5 20 24 1 139

7/21/2014 1 2 5 6 3 24 2 43

7/22/2014 1 3 9 6 19 27 65

7/23/2014 4 6 13 18 15 25 1 82

7/24/2014 4 12 6 6 2 13 1 44

7/25/2014 4 3 6 1 14

7/26/2014 4 5 6 9 1 25

7/27/2014 1 2 3 5 11

7/28/2014 3 0 5 4 6 1 4 1 24

7/29/2014 2 0 4 1 3 1 3 1 0 15

7/30/2014 1 3 4 1 5 7 21

Grand Total 180 1018 1314 2640 1266 998 54 16 18 1 145 7650

38

Appendix 7 - English Bay Lakes 2014 – Project Updates

Stocking & Misc. Activities Egg TakeCrew on-site: Dates: 9-Sep to 20-Sep

Ice-out: No. of broodstock used*: 877

Crew off-site: Green eggs: 1,093,154

Fry stocking: 209,000 2.4 g Fecundity: 2,195

Eyed eggs: 847,069

Smolt MigrationDates: 8-May to 8-Jul % Survival

Sockeyes: 127,131

Percent age 1: 100,068 78.7% Adult Migration Percent age 2: 26,863 21.1% Dates: 23-May to 30-Jul

Percent age 3: 0 Total return: 8,084

Percent hatchery: 32,727 25.7% Subsistence Harvest 252 3.1%

Dolly Varden: Lake: 7,832 96.9%

Mortalities 163

Hatchery broodstock: 877

Lake broodstock: 6,792

*Includes mortalities and inviables

1/26/2015

77.5%

16-Oct

2014 English Bay Lake Sockeye Project Update

7-May

1-May

31-Jul

0

2,000

4,000

6,000

8,000

10,000

12,000

14,0002

1-M

ay

26

-Ma

y

31

-Ma

y

5-J

un

10

-Ju

n

15

-Ju

n

20

-Ju

n

25

-Ju

n

30

-Ju

n

5-J

ul

10

-Ju

l

15

-Ju

l

20

-Ju

l

25

-Ju

l

30

-Ju

l

So

ck

eye

Ad

ult

s

English Bay Lakes

2012

2013

2014

-20,000

0

20,000

40,000

60,000

80,000

100,000

120,000

140,000

1-M

ay

7-M

ay

13

-Ma

y

19

-Ma

y

25

-Ma

y

31

-Ma

y

6-J

un

12

-Ju

n

18

-Ju

n

24

-Ju

n

30

-Ju

n

6-J

ul

So

ck

eye

Sm

olt

s

English Bay Lakes

2012

2013

2014

Documents

English Bay Lakes Salmon Enhancement Progress Report … BAY LAKES RPT 2014.pdf · English Bay Lakes Salmon Enhancement Progress Report 2014 Prepared by: Caroline Cherry, Hatchery