english bay lakes salmon enhancement progress report 2015

English Bay Lakes

Salmon Enhancement

Progress Report

2015

Prepared by:

Caroline Cherry, Hatchery Operations Coordinator

January 2016

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 in 2015.

The purpose of this 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 update 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 2015 English Bay Lakes smolt migration, fry release, and adult escapement were 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 .................................................................................................................................... 9

INTRODUCTION AND PURPOSE ............................................................................................ 11

PROJECT AREA .......................................................................................................................... 13

METHODS ................................................................................................................................... 17 Environmental Conditions ......................................................................................................... 17 Smolt Enumeration .................................................................................................................... 17 Smolt Characteristics and Enhanced Contribution .................................................................... 19 Adult Escapement ...................................................................................................................... 22 Gamete Collection, Incubation and Rearing - Sockeye ............................................................. 24 Fish Transport and Stocking ...................................................................................................... 24

RESULTS AND DISCUSSION ................................................................................................... 25 Environmental Conditions ......................................................................................................... 25 Smolt Enumeration - Sockeye ................................................................................................... 25 Adult Escapement - Sockeye ..................................................................................................... 26

RECOMMENDATIONS .............................................................................................................. 29

LITERATURE CITED ................................................................................................................. 31

APPENDICES .............................................................................................................................. 33

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LIST OF FIGURES

Figure 1. General location of English Bay Lakes system. ........................................................... 13

Figure 2. Bathymetric overview of Second Lake ........................................................................ 14

Figure 3. Bathymetric overview of Third Lake ........................................................................... 15

Figure 4. The English Bay Lakes smolt traps .............................................................................. 18

Figure 5. The English Bay Lakes adult weir................................................................................ 22

LIST OF TABLES

Table 1. Environmental conditions observed at English Bay Lakes, 2015. ................................ 25

Table 2. English Bay Lakes sockeye smolt characteristics.......................................................... 26

Table 3. English Bay Lakes adult sockeye characteristics. ......................................................... 26

Table 4. English Bay Lake egg collection activities BY 2007 - 2015. ........................................ 27

Table 5. English Bay Lakes fry-to-smolt survival ....................................................................... 28

Table 6. English Bay Lakes smolt-to-adult (hatchery and natural) survival ............................... 28

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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 2015 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 2015, 139,984 total sockeye salmon smolt migrated from the English Bay Lakes system.

Based on otolith sampling, 74.3% (±3.3%) were age 1 and the remaining 25.7% (±3.3%) were

age 2. Based on thermal marks, 14.2% (±2.4%) were identified as being of hatchery origin.

For adult sockeye salmon returning to the English Bay Lakes system, a total of 6,290 fish were

counted through the weir. Age 1.3 made up the majority of the return (58.7%), followed by age

1.2 (30.6%), age 2.2 (8.3%), and finally age 2.3 (2.5%). Otolith analysis indicated that 2.5%

(±2.8%) were identified as being of hatchery origin from brood year 2010 (BY10) stocking and

an additional 9.8% (±5.3%) from 2011 (BY11).

In 2015, 200,200 sockeye salmon fall fry BY14 were released into Second Lake (English Bay

Lakes system). At the time of release, the sockeye fall fry averaged 2.59 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 2014 eggtake.

No eggtake was performed in 2015.

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INTRODUCTION AND PURPOSE

For over 20 years, English Bay Lakes (EBL), located in Lower Cook Inlet, has been the site of a

sockeye salmon (Oncorhynchus nerka) enhancement project. The purpose of this project is to

increase adult sockeye salmon returns to the EBL system. The project has been modified several

times and this progress report presents the results of the 2015 field season.

Starting in 2012, Cook Inlet Aquaculture Association (CIAA) took over the project 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.

For 2015, the project consisted of enumerating and characterizing migrating sockeye smolt and

adults. Additionally, fall fry were stocked into Second Lake. However, unlike previous years, no

eggtake was performed in 2015.

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PROJECT AREA

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

Nanwalek(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, which

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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17

METHODS

In general, the English Bay Lakes salmon eggtake, hatchery incubation, fry rearing, smolt and

adult enumeration followed the procedures recommended by Alaska Department of Fish and

Game (ADF&G). These procedures are summarized in the English Bay Lakes Smolt and Adult

Enumeration Manuals (CIAA, 2015).

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.

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.

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

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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,

T = the total smolt migration,

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

sampling interval,

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

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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.

In 2015, no 10% sub-sampling was required.

Smolt Characteristics and Enhanced Contribution

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

sockeye smolt 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 2015, 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 693 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 and aged following procedures described by Glick and Shields (1993).

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.

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 ;

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

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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:

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:

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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

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.

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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 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:

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

Thus the 95% confidence interval estimate for

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AvA ˆ96.1ˆ

A total of 126 otoliths (2%) were collected of which 122 could be read.

Gamete Collection, Incubation and Rearing - Sockeye

Because 2015 was the last year of the AKSSF funding, CIAA made the decision to no longer

proceed with the back-stocking and smolt/adult enumeration for the immediate future. Therefore,

no gamete collection took place in 2015. If funding becomes available, CIAA will reevaluate its

decision.

Fish Transport and Stocking

For stocking, all fry were transported by truck from Trail Lakes Hatchery (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 2015 are presented in Appendix 1. Between 29 April

and 31 July, the air temperature averaged 10.6oC (± 2.9

oC) and the water temperature averaged

12.4oC (± 3.9

oC) (Table 1). Average stage height was 0.67 ft (± 0.3 ft).

Table 1. Environmental conditions observed at English Bay Lakes, 2012 - 2015.

Smolt Enumeration - Sockeye

Enumeration of English Bay Lakes sockeye smolt occurred between 29 April and 25 June. A

total of 139,984 sockeye smolt migrated from English Bay Lakes in 2015 (Appendix 2). The

10% sub-sampling procedure was not used.

A total of 693 sockeye smolt otoliths were collected of which 670 were readable. Otolith samples

were collected from every 200th

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

migrating smolts, 74.3% (± 3.3%) were age 1 and 25.8% (± 3.3%) were age 2. The age 1 smolts

averaged 65 mm ( 0.6 mm) in length and 2.3 g ( 0.1 g) in weight. The age 2 smolts averaged

72 mm (± 1.0 mm) in length and 3.1 g (± 0.1 g) in weight (Table 2). Based on the presence of

hatchery induced thermal marks, it was estimated that 14.2% ( 2.4%) of the sockeye smolt

were of hatchery origin (Table 2).

<50% >50% Days

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 36 231 inc inc 13.2 (7-17)

2015 89 20 15 16 14 16 49 271 10.6 (4-16) 12.4 (5-17)

Water

Temperature (C)

No. of Days

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, 2012–2015

Adult Escapement - Sockeye

Adult sockeye salmon began arriving at the weir on 21 May 2015 and continued to migrate until

30 July 2015 (Appendix 3). During this time, 6,290 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 126 otolith samples were collected of which 121 could be read. The returning

major age groups for adult sockeye included ages 1.2 (30.6%), 1.3 (58.7%), 2.2 (8.2%), and 2.3

(2.5%).

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

English Bay Lakes for 2015 is presented in Appendix 4.

Table 3. English Bay Lakes adult sockeye characteristics, 2012–2015

Based on the presence of thermal marks, it was estimated that 2.5% (±2.8%) of returning

sockeye salmon came from BY10 hatchery stocking and 9.8% (±5.3%) from BY11 hatchery

stocking. The remaining return was from natural production (87.7%) with the following age

class breakdown: BY09 = 3.3% (±3.2%); BY10 = 64.8% (±8.5%) and BY11 = 19.7% (±7.1%).

% No. Average Length (mm)

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

2015 139,984 0 14.2 2.4 120,136 104,048 4,649 36,145 4,662 65 0.6 72 1.0 2.3 0.1 3.1 0.1

Avg. 123,600 0 25.1 3.5 93,300 96,754 4,300 26,800 4,300 67 0.7 73 1.6 2.4 0.5 3.3 0.3

Total 494,415 387,016 107,398

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 (gm)Age Composition

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

2015 6,290 0 0 0 1,923 0 3,691 0 520 156 0 0

Avg 7,631 0 0 0 1,318 0 4,363 0 784 1,164 0 0

% of Avg 100% 0.0% 0.0% 0.0% 17.3% 0.0% 57.2% 0.00% 10.3% 15.3% 0.00% 0.0%

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Hatchery Activities

Stocking

In 2015, 200,200 sockeye fall fry (BY14; 4H) were released into Second Lake. These fish will

migrate in 2016/2017 as smolts. At the time of release, the sockeye fry averaged 2.59 g.

Eggtake

Because this was the last year of the AKSSF funding, CIAA made the decision to no longer

proceed with the back-stocking and smolt/adult enumeration for the immediate future. Therefore,

no gamete collection took place in 2015. If funding becomes available, CIAA will reevaluate its

decision.

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

since brood year 2007.

Table 4. English Bay Lake egg collection activities by CIAA, BY07 - BY15

Fry-to-Smolt Survival

Migrating smolts in 2015 were stocked either as fry in 2013 (BY12 - age 2) and 2014 (BY13 -

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

(hatchery production only) can be determined. Total smolt migration count (count plus fish

Brood Brood Green Eyed

Year Stock Eggs Eggs %

2007 372 510,000 409,000 80.196

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 89.8

2014 846 1,093,154 847,069 77.5

2015

Total 8,080,052 7,048,928

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

No collection

Sockeye

No collection

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sampled for otoliths) was used to determine fry-to-smolt survival. BY10 had a 15.22% fry-to-

smolt survival while BY11 had a 19.60% survival and BY12 had a 14.75% survival. BY13 data

is incomplete, but is estimated at 7.07% currently. This information is summarized in Table 5.

Table 5. English Bay Lakes fry-to-smolt survival, 2007–2014

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. Table 6 summarizes the information to date. Please note that both year classes are

still incomplete. For BY10, the 5-year-old component has not yet return and for BY11 the 4-year

(and the larger component of the returns to date) and 5-year component have not yet returned.

Table 6. English Bay Lakes smolt-to-adult (hatchery and natural) survival, BY10–BY11

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

Year Escap. Stocked (g) Smolt Smolt Survival

2007 16,487 246,000 2.83

2008 11,993

2009a

18,439 202,000 3.40 15,196 2,918 1.44%

2010 12,253 203,300 2.86 127,477 30,944 15.22%

2011 12,036 213,000 2.78 111,218 41,749 19.60%

2012 3,293 211,000 2.66 136,148 31,136 14.76%

2013 * 10,904 209,000 2.40 104,020 14,771 7.07%

2014 * 6,986 200,200 2.59

Ave1

11,549 212,071 2.79 124,948 34,610 16.5%

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

no data collected

no data yet available

No egg collection

Hatchery

Smolt Wild Smolt Total Smolt

Hatchery

Adult Wild Adult Total Adult

Hatchery Smolt-

Adult Survival

Wild Smolt-

Adult Survival

Total Smolt-Adult

Survival

BY10 30,815 96,161 126,976 463 5,538 6,001 1.50% 5.76% 4.73%

BY11 41,534 69,113 110,647 703 1,407 2,110 1.69% 2.04% 1.91%

red and italics indicates that the brood year is incomplete.

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RECOMMENDATIONS

Due to limited financial resources this project will not be continued next year. A completion

report for the AKSSF funded portion of this project is being compiled and will present a

comparison and summary of the findings to date.

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LITERATURE CITED

CIAA (2015). English Bay Lakes Adult Enumeration Procedures Manual.

CIAA (2015). 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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33

APPENDICES

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35

Appendix 1. English Bay Lakes 2015 - Environmental Conditions

Date Sky RainStaff

GaugeChange

Water

TempAir Temp Date Sky Rain

Staff

GaugeChange

Water

TempAir Temp

19-Apr 4 2.0 4.0 5.2 4.9 1-Jun 1 0.0 3.9 0.0 11.9 13.1

30-Apr 1 0.5 4.0 0.0 5.6 4.1 2-Jun 2 0.0 3.8 0.1 12.0 11.8

1-May 1 0.0 4.0 0.0 5.7 4.5 3-Jun 4 2.0 3.8 0.0 11.9 10.1

2-May 3 0.0 4.0 0.0 5.7 3.9 4-Jun 2 2.0 3.8 0.0 11.5 9.6

3-May 3 0.0 3.9 0.1 6.1 4.4 5-Jun 3 9.0 3.9 -0.1 11.3 9.1

4-May 2 0.0 3.9 0.0 6.5 6.5 6-Jun 3 12.0 3.9 0.0 11.3 9.0

5-May 4 1.5 3.9 0.0 6.7 6.9 7-Jun 3 2.0 3.9 0.0 11.4 9.7

6-May 4 5.0 3.9 0.0 6.6 6.9 8-Jun 5 2.5 4.0 -0.1 11.4 8.5

7-May 5 2.0 3.9 0.0 6.8 6.6 9-Jun 4 14.0 4.0 0.0 11.1 9.1

8-May 5 15.0 4.0 -0.1 6.7 6.1 10-Jun 0 3.0 4.2 -0.2 11.5 9.4

9-May 1 0.8 4.2 -0.2 6.8 8.0 11-Jun 1 0.5 4.2 0.0 11.5 10.6

10-May 3 1.0 4.2 0.0 7.1 6.5 12-Jun 0 0.0 4.2 0.0 11.7 11.5

11-May 2 0.5 4.1 0.1 7.2 6.9 13-Jun 1 0.0 4.0 0.2 12.2 10.5

12-May 1 0.0 4.1 0.0 7.5 5.5 14-Jun 0 0.0 4.0 0.0 12.7 12.5

13-May 5 0.0 4.0 0.1 7.5 6.7 15-Jun 1 0.0 3.9 0.1 13.5 13.4

14-May 5 9.0 4.0 0.0 7.4 7.7 16-Jun 1 0.0 3.9 0.0 14.2 14.0

15-May 3 5.0 4.1 -0.1 7.6 7.7 17-Jun 1 0.0 3.9 0.0 15.0 13.7

16-May 1 0.5 4.2 -0.1 7.7 7.8 18-Jun 1 0.0 3.8 0.1 15.9 16.1

17-May 3 1.7 4.2 0.0 7.4 7.3 19-Jun 0 0.0 3.8 0.0 16.3 15.7

18-May 3 0.0 4.1 0.1 7.7 8.9 20-Jun 4 0.0 3.9 -0.1 15.6 11.5

19-May 2 0.0 4.0 0.1 7.8 8.6 21-Jun 4 0.0 3.8 0.1 15.1 11.4

20-May 3 0.0 4.0 0.0 7.7 8.5 22-Jun 1 0.0 3.8 0.0 15.6 12.5

21-May 2 0.0 4.0 0.0 7.9 8.7 23-Jun 0 0.0 3.8 0.0 15.5 10.9

22-May 2 0.0 4.0 0.0 8.3 8.8 24-Jun 2 0.0 3.7 0.1 15.7 12.3

23-May 2 5.5 4.1 -0.1 8.4 9.4 25-Jun 4 5.0 3.7 0.0 15.8 13.4

24-May 2 0.0 4.2 -0.1 8.2 8.5 26-Jun 5 15.0 3.7 0.0 15.8 12.5

25-May 3 3.0 4.1 0.1 8.4 8.2 27-Jun 5 7.0 3.8 -0.1 15.8 11.8

26-May 1 2.5 4.1 0.0 8.8 8.4 28-Jun 5 10.0 3.9 -0.1 15.7 11.3

27-May 2 0.0 4.0 0.1 9.2 6.9 29-Jun 1 0.0 3.9 0.0 15.4 11.0

28-May 1 0.0 4.0 0.0 9.6 9.7 30-Jun 4 0.5 4.0 -0.1 15.4 11.3

29-May 0 0.0 3.8 0.2 10.1 10.7

30-May 0 0.0 3.8 0.0 11.0 11.6

31-May 0 0.0 3.9 -0.1 11.5 13.2

Sky Conditions

1 = clear

2 = less than 50% cloud cover

3 = more than 50% cloud cover

4 = 100% overcast

5 = rain

36

Appendix 1 (continued). English Bay Lakes 2015 - Environmental Conditions

Date Sky RainStaff

GaugeChange

Water

TempAir Temp

1-Jul 2 0.0 3.9 0.1 15.9 10.5

2-Jul 3 0.0 3.9 0.0 16.3 14.0

3-Jul 1 0.0 3.9 0.0 16.5 11.9

4-Jul 5 16.0 3.9 0.0 16.2 12.5

5-Jul 3 4.0 3.8 0.1 16.1 14.7

6-Jul 2 10.0 3.8 0.0 16.4 15.1

7-Jul 4 4.0 4.0 -0.2 16.6 13.7

8-Jul 1 0.0 4.0 0.0 15.8 11.8

9-Jul 2 0.0 4.1 -0.1 16.0 12.3

10-Jul 1 0.0 4.1 0.0 16.3 12.1

11-Jul 3 0.5 4.0 0.1 16.6 12.4

12-Jul 4 5.0 4.0 0.0 16.3 12.5

13-Jul 5 10.0 4.0 0.0 16.1 11.6

14-Jul 4 0.0 4.1 -0.1 16.3 11.4

15-Jul 3 0.5 4.2 -0.1 16.6 10.8

16-Jul 5 5.0 4.3 -0.1 15.7 11.7

17-Jul 5 12.0 4.4 -0.1 15.4 12.5

18-Jul 5 13.0 4.4 0.0 15.8 13.6

19-Jul 1 0.0 4.4 0.0 16.1 13.0

20-Jul 2 0.5 4.2 0.2 16.3 13.8

21-Jul 4 1.0 4.0 0.2 16.1 13.4

22-Jul 5 14.0 4.1 -0.1 15.9 12.4

23-Jul 5 17.0 4.1 0.0 16.1 13.1

24-Jul 3 5.0 4.0 0.1 15.6 14.7

25-Jul 5 10.0 4.0 0.0 16.4 13.3

26-Jul 4 3.0 4.0 0.0 16.3 13.7

27-Jul 16.8 13.6

28-Jul 16.7 14.6

29-Jul 17.0 15.0

30-Jul 17.0 13.3

31-Jul 17.2 12.1

Sky Conditions

1 = clear

2 = less than 50% cloud cover

3 = more than 50% cloud cover

4 = 100% overcast

5 = rain

37

Appendix 2. English Bay Lakes 2015 - Smolt Migration

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

29-Apr 162 162 40 40 0 0 120 120

30-Apr 232 1 394 91 131 23 23 2,145 2,265

01-May 237 2 631 98 229 1 24 1,225 3,490

02-May 411 2 1,042 127 356 29 53 2,570 6,060

03-May 361 2 1,403 146 502 19 72 2,110 8,170

04-May 549 2 1,952 179 681 13 85 2,265 10,435

05-May 897 5 2,849 192 873 94 179 1,397 11,832

06-May 1,303 6 4,152 236 1,109 67 246 2,770 14,602

07-May 1,765 9 5,917 246 1,355 125 371 3,210 17,812

08-May 3,412 17 9,329 0.50% 242 1,597 158 529 2,484 20,296

09-May 4,555 23 13,884 0.50% 100 1,697 93 622 2,565 22,861

10-May 6,478 32 20,362 0.49% 150 1,847 177 799 2,034 24,895

11-May 6,422 32 26,784 0.50% 165 2,012 126 925 845 25,740

12-May 6,150 31 32,934 0.50% 197 2,209 170 1,095 729 26,469

13-May 6,109 30 39,043 0.49% 119 2,328 92 1,187 455 26,924

14-May 5,027 25 44,070 0.50% 109 2,437 102 1,289 547 27,471

15-May 5,270 26 49,340 0.49% 95 2,532 83 1,372 282 27,753

16-May 10,573 53 59,913 0.50% 414 2,946 22 1,394 24 27,777

17-May 11,303 57 71,216 0.50% 410 3,356 7 1,401 9 27,786

18-May 4,377 21 75,593 0.48% 261 3,617 12 1,413 6 27,792

19-May 3,166 16 78,759 0.51% 199 3,816 15 1,428 8 27,800

20-May 2,937 15 81,696 0.51% 239 4,055 20 1,448 34 27,834

21-May 4,762 23 86,458 0.48% 226 4,281 20 1,468 12 27,846

22-May 2,504 13 88,962 0.52% 126 4,407 21 1,489 14 27,860

23-May 3,211 16 92,173 0.50% 164 4,571 12 1,501 6 27,866

24-May 2,717 13 94,890 0.48% 113 4,684 11 1,512 13 27,879

25-May 1,122 6 96,012 0.53% 67 4,751 3 1,515 1 27,880

26-May 2,170 11 98,182 0.51% 84 4,835 6 1,521 1 27,881

27-May 5,013 25 103,195 0.50% 155 4,990 6 1,527 1 27,882

28-May 1,936 10 105,131 0.52% 99 5,089 3 1,530 0 27,882

29-May 1,802 9 106,933 0.50% 111 5,200 9 1,539 0 27,882

30-May 1,062 5 107,995 0.47% 45 5,245 0 1,539 0 27,882

31-May 1,348 7 109,343 0.52% 59 5,304 4 1,543 0 27,882

01-Jun 1,971 8 111,314 0.41% 129 5,433 14 1,557 27,882

02-Jun 2,773 14 114,087 0.50% 126 5,559 8 1,565 0 27,882

03-Jun 1,580 9 115,667 0.57% 37 5,596 1,565 0 27,882

04-Jun 1,336 8 117,003 0.60% 69 5,665 4 1,569 0 27,882

05-Jun 1,412 7 118,415 0.50% 116 5,781 6 1,575 0 27,882

06-Jun 2,428 13 120,843 0.54% 87 5,868 3 1,578 0 27,882

07-Jun 2,103 10 122,946 0.48% 62 5,930 3 1,581 0 27,882

08-Jun 1,507 8 124,453 0.53% 75 6,005 4 1,585 0 27,882

09-Jun 1,375 6 125,828 0.44% 60 6,065 3 1,588 0 27,882

10-Jun 1,932 10 127,760 0.52% 83 6,148 4 1,592 0 27,882

11-Jun 2,306 12 130,066 0.52% 87 6,235 2 1,594 0 27,882

12-Jun 1,698 8 131,764 0.47% 89 6,324 4 1,598 0 27,882

13-Jun 1,411 6 133,175 0.43% 71 6,395 3 1,601 0 27,882

14-Jun 1,048 6 134,223 0.57% 70 6,465 6 1,607 0 27,882

15-Jun 965 4 135,188 0.41% 55 6,520 4 1,611 0 27,882

16-Jun 860 5 136,048 0.58% 74 6,594 2 1,613 0 27,882

17-Jun 994 5 137,042 0.50% 85 6,679 2 1,615 0 27,882

18-Jun 878 4 137,920 0.46% 40 6,719 2 1,617 0 27,882

19-Jun 483 3 138,403 0.62% 34 6,753 2 1,619 0 27,882

20-Jun 375 2 138,778 0.53% 25 6,778 2 1,621 0 27,882

21-Jun 394 1 139,172 0.25% 23 6,801 1 1,622 0 27,882

22-Jun 216 1 139,388 0.46% 10 6,811 3 1,625 0 27,882

23-Jun 244 2 139,632 0.82% 8 6,819 3 1,628 0 27,882

24-Jun 195 139,827 0.00% 12 6,831 2 1,630 0 27,882

25-Jun 157 139,984 0.00% 8 6,839 1 1,631 0 27,882

26-Jun 139,984 6,839 1,631 27,882

Totals 139,984 697 139,984 0.50% 6,839 6,839 1,631 1,631 27,882 27,882

Sockeye Coho Dolly Varden Pink Salmon

38

Appendix 3. English Bay Lakes 2015 - Adult Sockeye Salmon Migration.

Lake Escapement Daily Cumm.

Date Sockeye Otoliths % sampled Total Total

21-May 0 0

22-May 0 0

23-May 5 0.00% 5 5

24-May 0 0 5

25-May 1 0.00% 1 6

26-May 0 0 6

27-May 31 0.00% 31 37

28-May 3 0.00% 3 40

29-May 10 1 10.00% 10 50

30-May 15 0.00% 15 65

31-May 9 0.00% 9 74

01-Jun 19 0.00% 19 93

02-Jun 4 0.00% 4 97

03-Jun 0 0 97

04-Jun 124 3 2.42% 124 221

05-Jun 61 1 1.64% 61 282

06-Jun 104 3 2.88% 104 386

07-Jun 104 3 2.88% 104 490

08-Jun 173 4 2.31% 173 663

09-Jun 466 8 1.72% 466 1,129

10-Jun 321 6 1.87% 321 1,450

11-Jun 138 2 1.45% 138 1,588

12-Jun 50 2 4.00% 50 1,638

13-Jun 81 1 1.23% 81 1,719

14-Jun 225 5 2.22% 225 1,944

15-Jun 37 0 0.00% 37 1,981

16-Jun 34 1 2.94% 34 2,015

17-Jun 117 2 1.71% 117 2,132

18-Jun 47 1 2.13% 47 2,179

19-Jun 383 8 2.09% 383 2,562

20-Jun 155 3 1.94% 155 2,717

21-Jun 142 3 2.11% 142 2,859

22-Jun 260 5 1.92% 260 3,119

23-Jun 55 1 1.82% 55 3,174

24-Jun 107 2 1.87% 107 3,281

25-Jun 143 4 2.80% 143 3,424

26-Jun 51 1 1.96% 51 3,475

27-Jun 97 2 2.06% 97 3,572

28-Jun 49 1 2.04% 49 3,621

29-Jun 47 1 2.13% 47 3,668

30-Jun 118 2 1.69% 118 3,786

01-Jul 70 1 1.43% 70 3,856

02-Jul 372 7 1.88% 372 4,228

03-Jul 79 1 1.27% 79 4,307

04-Jul 97 2 2.06% 97 4,404

05-Jul 229 4 1.75% 229 4,633

06-Jul 62 1 1.61% 62 4,695

07-Jul 59 3 5.08% 59 4,754

08-Jul 57 1 1.75% 57 4,811

09-Jul 92 2 2.17% 92 4,903

10-Jul 128 2 1.56% 128 5,031

11-Jul 73 1 1.37% 73 5,104

12-Jul 57 1 1.75% 57 5,161

13-Jul 87 2 2.30% 87 5,248

14-Jul 73 1 1.37% 73 5,321

15-Jul 103 2 1.94% 103 5,424

16-Jul 67 1 1.49% 67 5,491

17-Jul 63 1 1.59% 63 5,554

18-Jul 53 1 1.89% 53 5,607

19-Jul 66 2 3.03% 66 5,673

20-Jul 48 0 0.00% 48 5,721

21-Jul 41 2 4.88% 41 5,762

22-Jul 57 1 1.75% 57 5,819

23-Jul 63 2 3.17% 63 5,882

24-Jul 34 0 0.00% 34 5,916

25-Jul 19 2 10.53% 19 5,935

26-Jul 127 2 1.57% 127 6,062

27-Jul 64 1 1.56% 64 6,126

28-Jul 33 0 0.00% 33 6,159

29-Jul 39 2 5.13% 39 6,198

30-Jul 45 1 2.22% 45 6,243

31-Jul 47 1 2.13% 47 6,290

Total 6,290 126 2.00% 6,290 6,290

39

Appendix 4. English Bay Lakes 2015 – Adult Sockeye Age and Sex Characteristics

1.1 1.2 1.3 2.1 2.2 2.3 Total

Sample Period: May 29 - July 31, 2015

Males (No.) 0 468 2,027 0 156 104 2,755

Percent 0.0% 17.0% 73.6% 0.0% 5.7% 3.8% 43.8%

Sample Size 0 9 39 0 3 2 53

Total Sample Size 35

Mean Length (mm) 550 560 540 475 554

Std. Deviation 31.9 55.7 8.1 7.8 51.6

Std. Error 10.6 8.9 4.7 5.5 8.7

Mean Weight (kg) 2.36 2.58 2.30 2.40 2.53

Std. Deviation 0.42 0.24 0.17 0.14 0.29

Std. Error 0.14 0.04 0.10 0.10 0.05

Females (No.) 0 1,456 1,663 0 364 52 3,535

Percent 0.0% 41.2% 47.1% 0.0% 10.3% 1.5% 56.2%

Sample Size 0 28 32 0 7 1 68


Mean Length (mm) 503 535 516 531 520

Std. Deviation 29.9 22.4 17.8 29.1

Std. Error 5.7 4.0 6.7 4.9

Mean Weight (kg) 1.73 2.13 1.87 2.80 1.95

Std. Deviation 0.28 0.26 0.28 0.34

Std. Error 0.05 0.05 0.11 0.06

Both Sexes (No.) 0 1,923 3,691 0 516 156 6,290

Percent 0.0% 30.6% 58.7% 0.0% 8.2% 2.5% 100.0%

Sample Size 0 37 71 0 10 3 121


Mean Length (mm) 514 549 524 493 530

Std. Deviation 36.4 45.4 19.0 33.1 43.5

Std. Error 6.0 5.4 6.0 19.1 5.2

Mean Weight (kg) 1.88 2.38 2.00 2.53 2.16

Std. Deviation 0.42 0.34 0.32 0.25 0.43

Std. Error 0.07 0.04 0.10 0.15 0.05

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

Age

40

Appendix 5. English Bay Lakes 2015 – Sockeye Smolt Hourly Counts

Date 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

4/29/2015 17 24 53 37 13 2 0 1 1 2 2 0 10 162

4/30/2015 64 56 27 27 14 0 1 3 1 0 0 0 2 1 1 0 1 0 0 34 232

5/1/2015 100 63 30 0 10 5 3 2 3 3 1 1 2 0 1 2 0 0 0 0 0 0 5 6 237

5/2/2015 123 75 57 28 19 10 3 4 3 2 0 1 1 2 2 0 1 1 1 0 0 19 27 32 411

5/3/2015 121 69 42 22 33 24 2 3 1 1 0 6 1 4 3 1 2 3 2 0 2 1 3 15 361

5/4/2015 111 110 74 41 60 46 10 5 2 0 0 1 2 1 1 1 2 0 2 5 12 63 549

5/5/2015 106 299 155 81 61 24 15 5 3 1 0 1 1 0 1 2 0 1 0 13 51 77 897

5/6/2015 237 169 89 61 75 49 36 7 5 2 3 1 1 0 0 2 4 1 0 3 24 87 147 300 1,303

5/7/2015 299 205 120 98 119 71 40 8 10 10 15 12 17 48 21 32 24 21 20 56 51 179 289 1,765

5/8/2015 830 302 141 121 102 88 41 29 7 39 30 12 56 40 54 91 42 51 33 31 98 183 289 702 3,412

5/9/2015 359 587 556 268 172 105 79 145 64 52 55 72 93 64 112 98 275 281 300 154 110 151 105 298 4,555

5/10/2015 605 529 403 220 208 110 54 93 91 102 77 46 180 83 214 436 531 483 276 210 354 260 251 662 6,478

5/11/2015 730 335 333 325 125 200 81 52 58 43 57 259 302 241 360 382 281 326 217 241 201 306 360 607 6,422

5/12/2015 439 500 501 253 340 134 59 31 67 20 16 10 38 12 3 16 137 1,112 949 510 351 163 218 271 6,150

5/13/2015 578 645 425 464 117 111 85 75 32 24 41 92 97 15 26 76 283 627 356 589 419 420 512 6,109

5/14/2015 579 673 413 441 289 233 77 64 43 49 63 43 42 36 11 10 8 509 487 516 441 5,027

5/15/2015 580 673 605 376 215 172 188 93 35 21 14 22 23 36 53 42 73 113 43 193 343 396 453 508 5,270

5/16/2015 1,236 1,156 1,588 415 224 214 165 559 281 318 299 372 193 167 301 194 751 101 33 47 236 426 698 599 10,573

5/17/2015 3,544 1,210 1,179 313 211 131 187 216 93 104 358 165 83 35 42 35 61 21 14 10 54 237 567 2,433 11,303

5/18/2015 671 937 451 210 204 154 109 70 35 14 10 19 5 165 79 113 43 12 31 14 57 136 272 566 4,377

5/19/2015 408 520 550 342 215 152 48 10 51 67 41 26 12 26 22 35 28 12 4 2 40 113 223 219 3,166

5/20/2015 302 478 558 204 192 104 28 12 24 21 11 37 0 17 25 23 14 19 11 6 54 201 284 312 2,937

5/21/2015 461 573 607 929 591 473 33 20 11 26 14 8 36 15 18 29 25 12 17 25 95 115 273 356 4,762

5/22/2015 327 364 203 210 412 171 102 32 16 29 22 19 31 16 27 18 3 19 26 18 27 43 157 212 2,504

5/23/2015 463 608 620 564 126 99 101 17 12 29 11 16 4 11 2 13 207 15 10 19 35 39 58 132 3,211

5/24/2015 431 486 321 214 263 86 125 35 47 13 11 4 2 13 7 19 209 29 10 23 34 49 67 219 2,717

5/25/2015 57 60 76 55 74 53 91 72 38 42 76 61 30 11 16 45 10 4 12 25 36 44 78 56 1,122

5/26/2015 337 396 101 105 108 99 32 45 15 22 17 68 92 106 72 56 32 26 31 25 56 22 68 239 2,170

5/27/2015 469 475 344 432 296 189 53 85 109 127 90 73 198 257 199 280 213 153 45 68 79 85 293 401 5,013

5/28/2015 101 97 87 93 86 91 89 52 33 79 49 30 45 52 67 76 84 30 39 23 35 85 310 203 1,936

5/29/2015 205 218 219 241 141 101 61 15 11 5 18 7 14 3 7 28 35 18 8 17 35 48 143 204 1,802

5/30/2015 119 107 105 95 157 98 10 18 9 21 3 6 14 14 12 20 35 7 8 17 25 48 114 1,062

5/31/2015 205 130 105 140 141 104 21 34 16 11 12 46 31 17 18 10 38 11 16 15 20 51 49 107 1,348

6/1/2015 302 251 204 176 187 109 98 41 23 18 15 16 12 18 12 18 44 9 17 32 41 49 87 192 1,971

6/2/2015 352 411 317 198 107 92 102 76 54 34 42 51 48 47 51 32 30 26 26 39 57 183 191 207 2,773

6/3/2015 136 211 374 203 92 83 87 43 21 15 8 5 12 18 7 12 10 8 13 22 19 53 62 66 1,580

6/4/2015 134 159 206 153 141 73 42 15 12 22 7 10 14 30 47 12 9 16 7 11 17 28 73 98 1,336

6/5/2015 147 163 217 141 105 97 39 21 17 12 12 8 15 77 53 8 17 20 21 13 24 26 62 97 1,412

6/6/2015 201 423 619 318 204 173 68 21 6 3 17 10 21 49 12 15 8 5 14 18 23 30 63 107 2,428

6/7/2015 214 371 463 211 143 92 103 33 19 12 17 22 39 17 10 13 17 12 21 19 32 48 73 102 2,103

6/8/2015 203 187 214 101 107 112 83 43 14 38 21 19 24 12 17 5 10 6 13 19 23 49 68 119 1,507

6/9/2015 193 121 211 117 123 82 93 20 4 13 8 27 3 4 15 4 11 7 16 23 27 64 83 106 1,375

6/10/2015 105 183 213 297 198 92 61 53 107 115 46 22 10 15 6 12 19 32 26 39 41 65 91 84 1,932

6/11/2015 112 192 252 314 215 109 83 65 88 72 103 62 59 82 30 23 18 20 33 49 37 89 103 96 2,306

6/12/2015 102 197 201 143 109 97 97 112 77 51 24 93 21 12 9 11 6 18 13 32 41 72 77 83 1,698

6/13/2015 117 203 141 173 92 83 54 36 32 16 14 13 21 10 15 22 9 19 21 41 54 43 85 97 1,411

6/14/2015 93 142 173 114 122 95 41 22 19 12 9 9 13 11 6 13 5 1 7 11 9 19 23 79 1,048

6/15/2015 63 74 99 119 134 84 59 15 4 2 9 1 13 21 19 14 24 19 21 23 17 33 46 52 965

6/16/2015 45 85 105 132 112 78 24 36 29 42 27 14 11 17 16 21 23 7 0 3 12 4 8 9 860

6/17/2015 103 127 115 156 92 73 72 41 38 17 5 7 4 0 0 6 4 12 19 7 11 9 17 59 994

6/18/2015 82 115 133 119 102 84 63 25 14 9 11 10 5 3 10 9 7 13 3 4 9 14 34 878

6/19/2015 23 31 34 41 78 37 59 30 17 14 11 12 10 7 7 14 2 4 5 3 5 11 9 19 483

6/20/2015 12 23 21 19 37 31 32 24 10 16 11 13 15 7 4 17 9 12 8 11 9 14 7 13 375

6/21/2015 5 13 56 67 32 36 28 19 12 10 9 13 22 4 8 7 11 10 16 1 3 5 4 3 394

6/22/2015 12 9 11 13 31 23 23 2 0 0 3 1 5 4 7 0 5 2 1 7 9 10 21 17 216

6/23/2015 17 28 12 18 27 23 16 5 2 0 1 14 3 2 4 5 0 0 5 9 4 7 19 23 244

6/24/2015 14 22 18 14 11 27 19 7 5 3 8 0 12 0 0 4 0 0 3 0 7 1 9 11 195

6/25/2015 9 0 4 11 15 22 25 10 5 7 2 1 0 1 3 2 12 0 0 14 2 12 157

Grand Total 18,010 16,814 15,580 10,793 8,042 5,624 3,489 2,716 1,866 1,839 1,872 1,986 2,045 1,943 2,129 2,503 3,752 3,820 2,486 2,498 4,075 5,197 7,921 12,984 139,984

41

Appendix 6. English Bay Lakes 2015 – Sockeye Adult Hourly Counts

Date 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

5/23/2015 2 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5

5/24/2015 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

5/25/2015 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1

5/26/2015 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

5/27/2015 0 0 5 6 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 31

5/28/2015 0 0 1 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3

5/29/2015 2 0 4 0 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10

5/30/2015 0 0 8 0 7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15

5/31/2015 2 0 1 0 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9

6/1/2015 2 0 11 0 3 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 19

6/2/2015 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4

6/3/2015 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

6/4/2015 50 0 31 0 37 0 3 0 0 0 1 0 0 0 1 0 0 1 0 0 0 0 0 0 124

6/5/2015 23 0 15 0 20 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 61

6/6/2015 43 0 0 31 16 14 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 104

6/7/2015 34 3 40 0 15 5 4 0 0 0 0 0 2 0 0 0 0 0 1 0 0 0 0 0 104

6/8/2015 52 11 41 0 11 58 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 173

6/9/2015 200 31 93 0 80 55 4 0 0 0 1 0 0 0 2 0 0 0 0 0 0 0 0 0 466

6/10/2015 150 0 71 0 97 0 0 1 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 321

6/11/2015 54 0 32 0 52 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 138

6/12/2015 20 0 10 6 8 0 0 0 3 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 50

6/13/2015 50 0 11 0 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 81

6/14/2015 103 0 50 0 66 0 4 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 225

6/15/2015 10 0 12 0 10 0 0 0 3 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 37

6/16/2015 9 0 11 0 10 0 0 3 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 34

6/17/2015 42 0 33 0 42 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 117

6/18/2015 17 0 15 0 14 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 47

6/19/2015 103 17 122 53 88 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 383

6/20/2015 47 0 50 25 25 0 0 4 0 2 0 0 1 0 0 0 1 0 0 0 0 0 0 0 155

6/21/2015 41 0 61 0 20 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 142

6/22/2015 110 0 70 0 75 0 0 0 2 0 0 1 0 1 0 0 1 0 0 0 0 0 0 0 260

6/23/2015 25 0 15 0 15 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 55

6/24/2015 47 0 30 0 15 15 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 107

6/25/2015 51 8 60 0 10 5 0 4 0 0 0 2 0 0 0 0 3 0 0 0 0 0 0 0 143

6/26/2015 31 0 12 0 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 51

6/27/2015 50 0 20 0 20 0 0 4 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 97

6/28/2015 15 0 14 0 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 49

6/29/2015 21 0 6 0 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 47

6/30/2015 49 0 10 0 52 0 2 0 0 3 0 0 0 0 0 2 0 0 0 0 0 0 0 0 118

7/1/2015 30 0 20 0 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 70

7/2/2015 104 43 0 125 60 40 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 372

7/3/2015 31 0 10 0 20 18 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 79

7/4/2015 50 0 20 0 20 0 4 0 0 0 1 0 0 1 0 0 1 0 0 0 0 0 0 0 97

7/5/2015 109 0 70 0 25 25 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 229

7/6/2015 31 0 15 0 16 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 62

7/7/2015 25 0 10 0 15 0 0 2 0 1 0 0 3 0 0 1 0 0 2 0 0 0 0 0 59

7/8/2015 25 0 0 0 20 7 0 1 0 2 0 0 1 0 1 0 0 0 0 0 0 0 0 0 57

7/9/2015 1 20 14 8 10 34 3 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 92

7/10/2015 63 0 35 0 23 0 7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 128

7/11/2015 30 0 21 0 14 0 3 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 73

7/12/2015 23 0 16 0 14 0 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 57

7/13/2015 51 0 21 0 9 0 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 87

7/14/2015 39 0 14 0 17 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 73

7/15/2015 63 0 13 0 2 18 7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 103

7/16/2015 30 0 17 0 7 7 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 67

7/17/2015 21 0 18 9 9 1 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 63

7/18/2015 5 7 0 15 23 0 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 53

7/19/2015 15 34 0 17 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 66

7/20/2015 7 0 17 10 12 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 48

7/21/2015 5 0 24 0 12 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 41

7/22/2015 10 5 15 11 9 0 0 0 0 0 2 1 4 0 0 0 0 0 0 0 0 0 0 0 57

7/23/2015 8 19 0 16 13 0 0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 0 0 63

7/24/2015 20 3 0 10 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 34

7/25/2015 2 0 9 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 19

7/26/2015 22 12 24 41 18 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 127

7/27/2015 4 12 8 4 30 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 64

7/28/2015 13 0 0 2 8 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9 0 33

7/29/2015 21 0 9 0 3 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 39

7/30/2015 21 0 5 0 4 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12 0 45

7/31/2015 17 0 15 0 8 7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 47

Grand Total 2,351 226 1,407 397 1,345 364 71 19 9 8 5 7 18 8 9 8 7 1 3 0 0 0 21 6 6,290

42

Appendix 7 - English Bay Lakes 2015 – Project Updates

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

Ice-out: No. of broodstock used*:

Crew off-site: Green eggs:

Fry stocking: Fecundity:

Eyed eggs:

Smolt Migration % Survival

Dates: 29-Apr to 25-Jun

Sockeyes: 139,984 Adult Migration Percent age 1: 104,048 74.3% Dates: 23-May to 31-Jul

Percent age 2: 36,145 25.8% Total return: 7,151

Percent age 3: Subsistence Harvest 735 10.3%

Percent hatchery: 19,848 14.2% Lake: 6,416 89.7%

Dolly Varden: Mortalities 126

Hatchery broodstock: 0

Lake broodstock: 6,290

*Includes mortalities and inviables

12/11/2015

22-Oct

2015 English Bay Lake Sockeye Project Update

29-Apr

NA

31-Jul No Eggtake in 2015

0

2,000

4,000

6,000

8,000

10,000

12,000

14,000

21

-Ma

y

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

sEnglish Bay Lakes

2012 2013

2014 2015

-20,000

0

20,000

40,000

60,000

80,000

100,000

120,000

140,000

160,000

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 2015

english bay lakes salmon enhancement progress report 2015

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