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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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iii
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
viii
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
9
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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11
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.
14
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
15
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
18
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.
19
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.
20
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.
21
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:
22
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.
23
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
24
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.
25
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.
26
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%
27
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
28
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.
29
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.
30
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31
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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APPENDICES
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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
Total Sample Size 35
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
Total Sample Size 70
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