Fishery Data Series No Kodiak Management Area Salmon Escapement and Catch Sampling Results, 2015

Transcription

1 Fishery Data Series No Kodiak Management Area Salmon Escapement and Catch Sampling Results, 2015 by Michelle L. Wattum Alaska Department of Fish and Game April 2016 Divisions of Sport Fish and Commercial Fisheries

2 Symbols and Abbreviations The following symbols and abbreviations, and others approved for the Système International d'unités (SI), are used without definition in the following reports by the Divisions of Sport Fish and of Commercial Fisheries: Fishery Manuscripts, Fishery Data Series Reports, Fishery Management Reports, and Special Publications. All others, including deviations from definitions listed below, are noted in the text at first mention, as well as in the titles or footnotes of tables, and in figure or figure captions. Weights and measures (metric) centimeter deciliter gram hectare kilogram kilometer liter meter milliliter millimeter cm dl g ha kg km L m ml mm Weights and measures (English) cubic feet per second ft 3 /s foot ft gallon gal inch in mile mi nautical mile nmi ounce oz pound lb quart qt yard yd Time and temperature day d degrees Celsius C degrees Fahrenheit F degrees kelvin K hour h minute min second s Physics and chemistry all atomic symbols alternating current ampere calorie direct current hertz horsepower hydrogen ion activity (negative log of) parts per million parts per thousand volts watts AC A cal DC Hz hp ph ppm ppt, V W General Alaska Administrative Code all commonly accepted abbreviations AAC e.g., Mr., Mrs., AM, PM, etc. all commonly accepted professional titles e.g., Dr., Ph.D., R.N., etc. compass directions: east E north N south S west W copyright corporate suffixes: Company Co. Corporation Corp. Incorporated Inc. Limited Ltd. District of Columbia D.C. et alii (and others) et al. et cetera (and so forth) etc. exempli gratia (for example) e.g. Federal Information Code FIC id est (that is) i.e. latitude or longitude lat. or long. monetary symbols (U.S.) $, months (tables and figures): first three letters Jan,...,Dec registered trademark trademark United States (adjective) U.S. United States of America (noun) USA U.S.C. United States Code U.S. state use two-letter abbreviations (e.g., AK, WA) Mathematics, statistics all standard mathematical signs, symbols and abbreviations alternate hypothesis H A base of natural logarithm e catch per unit effort CPUE coefficient of variation CV common test statistics (F, t, χ 2, etc.) confidence interval CI correlation coefficient (multiple) R correlation coefficient (simple) r covariance cov degree (angular ) degrees of freedom df expected value E greater than > greater than or equal to harvest per unit effort HPUE less than < less than or equal to logarithm (natural) ln logarithm (base 10) log logarithm (specify base) log 2, etc. minute (angular) ' not significant NS null hypothesis H O percent % probability P probability of a type I error (rejection of the null hypothesis when true) α probability of a type II error (acceptance of the null hypothesis when false) β second (angular) " standard deviation SD standard error SE variance population Var sample var

3 FISHERY DATA SERIES NO KODIAK MANAGEMENT AREA SALMON ESCAPEMENT AND CATCH SAMPLING RESULTS, 2015 by Michelle L. Wattum Alaska Department of Fish and Game, Division of Commercial Fisheries, Kodiak Alaska Department of Fish and Game Division of Sport Fish, Research and Technical Services 333 Raspberry Road, Anchorage, Alaska, April 2016

4 ADF&G Fishery Data Series was established in 1987 for the publication of Division of Sport Fish technically oriented results for a single project or group of closely related projects, and in 2004 became a joint divisional series with the Division of Commercial Fisheries. Fishery Data Series reports are intended for fishery and other technical professionals and are available through the Alaska State Library and on the Internet: This publication has undergone editorial and peer review. Michelle L. Wattum Alaska Department of Fish and Game, Division of Commercial Fisheries 351 Research Court, Kodiak, AK 99615, USA This document should be cited as: Wattum, M. L Kodiak Management Area salmon escapement and catch sampling results, Alaska Department of Fish and Game, Fishery Data Series No , Anchorage. The Alaska Department of Fish and Game (ADF&G) administers all programs and activities free from discrimination based on race, color, national origin, age, sex, religion, marital status, pregnancy, parenthood, or disability. The department administers all programs and activities in compliance with Title VI of the Civil Rights Act of 1964, Section 504 of the Rehabilitation Act of 1973, Title II of the Americans with Disabilities Act (ADA) of 1990, the Age Discrimination Act of 1975, and Title IX of the Education Amendments of If you believe you have been discriminated against in any program, activity, or facility please write: ADF&G ADA Coordinator, P.O. Box , Juneau, AK U.S. Fish and Wildlife Service, 4401 N. Fairfax Drive, MS 2042, Arlington, VA Office of Equal Opportunity, U.S. Department of the Interior, 1849 C Street NW MS 5230, Washington DC The department s ADA Coordinator can be reached via phone at the following numbers: (VOICE) , (Statewide Telecommunication Device for the Deaf) , (Juneau TDD) , or (FAX) For information on alternative formats and questions on this publication, please contact: ADF&G, Division of Sport Fish, Research and Technical Services, 333 Raspberry Rd, Anchorage AK (907)

5 TABLE OF CONTENTS Page LIST OF TABLES...iii LIST OF FIGURES... v ABSTRACT... 1 INTRODUCTION... 1 OBJECTIVES... 2 METHODS... 2 Abundance Estimates... 2 Escapement... 2 Commercial Harvest... 2 Age, Sex, and Length Sampling... 3 Escapement... 3 Commercial Harvest... 3 Sockeye Salmon Run Reconstruction Estimates... 4 Ayakulik River (Red Lake)... 4 Frazer Lake (Dog Salmon Creek)... 4 Karluk Lake... 5 Early Run... 5 Late Run... 6 Upper Station (South Olga Lakes)... 6 Early Run... 6 Late Run... 6 Brood Tables and Historical Trends... 6 Kodiak Salmon Test Fishery... 6 RESULTS... 7 Abundance Estimates and ASL Data... 7 Escapement... 7 Commercial Harvest... 7 Sockeye Salmon Run Reconstruction Estimates... 8 Ayakulik River (Red Lake)... 8 Frazer Lake (Dog Salmon Creek)... 8 Karluk Lake... 8 Early Run... 8 Late Run... 8 Upper Station (South Olga Lakes)... 9 Early Run... 9 Late Run... 9 Historical Size and Age Trends of Kodiak Sockeye Salmon... 9 Ayakulik (Red Lake)... 9 Frazer Lake... 9 Karluk Lake Upper Station (South Olga Lakes) Kodiak Salmon Test Fishery REFERENCES CITED TABLES AND FIGURES ii

6 Table LIST OF TABLES Page 1. Kodiak Management Area sockeye salmon escapement sampling schedule, Statistical weeks and corresponding calendar dates, Kodiak Management Area sockeye salmon catch sampling schedule, Daily and cumulative (cum.) sockeye salmon escapement counted through weirs by system, Kodiak Management Area, Fish weir installation and removal dates and salmon escapements for the major systems with fish weirs in the Kodiak Management Area, Estimated age composition of sockeye salmon escapements by system, Kodiak Management Area, Estimated age composition of Afognak Lake (Litnik) sockeye salmon escapement by week, Length composition of Afognak Lake (Litnik) sockeye salmon escapement samples by age and sex, Estimated sex composition of Afognak Lake (Litnik) sockeye salmon escapement by week, Estimated age composition of Ayakulik River (Red Lake) early-run sockeye salmon escapement by week, Length composition of Ayakulik River (Red Lake) early-run sockeye salmon escapement samples by age and sex, Estimated sex composition of Ayakulik River (Red Lake) sockeye salmon escapement by week, Estimated age composition of Ayakulik River (Red Lake) late-run sockeye salmon escapement by week, Length composition of Ayakulik River (Red Lake) late-run sockeye salmon escapement samples by age and sex, Estimated age composition of Frazer Lake (Dog Salmon Creek) sockeye salmon escapement, Length composition of Frazer Lake sockeye salmon escapement samples by age and sex, Estimated sex composition of Frazer Lake sockeye salmon escapement by week, Estimated age composition of Karluk Lake early-run sockeye salmon escapement by week, Length composition of Karluk Lake early-run sockeye salmon escapement samples by age and sex, Estimated sex composition of Karluk Lake sockeye salmon escapement by week, Estimated age composition of Karluk Lake late-run sockeye salmon escapement by week, Length composition of Karluk Lake late-run sockeye salmon escapement samples by age and sex, Estimated age composition of Pasagshak River sockeye salmon escapement by week, Length composition of Pasagshak River sockeye salmon escapement samples by age and sex, Estimated sex composition of Pasagshak River sockeye salmon escapement by week, Estimated age composition of Pauls Lake sockeye salmon escapement by week, Length composition of Pauls Lake sockeye salmon escapement samples by age and sex, Estimated sex composition of Pauls Lake sockeye salmon escapement by week, Estimated age composition of Saltery Lake sockeye salmon escapement by week, Length composition of Saltery Lake sockeye salmon escapement samples by age and sex, Estimated sex composition of Saltery Lake sockeye salmon escapement by week, Estimated age composition of Upper Station (South Olga Lakes) early-run sockeye salmon escapement by week, Length composition of Upper Station (South Olga Lakes) early-run sockeye salmon escapement samples by week, Estimated sex composition of Upper Station (South Olga Lakes) sockeye salmon escapement by week, Estimated age composition of Upper Station (South Olga Lakes) late-run sockeye salmon escapement by week, Length composition of Upper Station (South Olga Lakes) late-run sockeye salmon escapement samples by age and sex, Kodiak sockeye salmon age-2.2 escapement average length by year and system, 1985 to Kodiak sockeye salmon age-2.3 escapement average length by year and system, 1985 to iii

7 39. Estimated age composition of commercial sockeye salmon catches by sample area, Kodiak Management Area, Estimated age composition of Uganik-Viekoda-Kupreanof (253-11, 12, 13, 14, 31, 32, 33, 34, 35) commercial sockeye salmon catch by week, Estimated age composition of Uyak Bay (254-10, 20, 21, 30, 31, 40, 41) commercial sockeye salmon catch by week, Estimated age composition of Inner and Outer Karluk Sections ( and ) and Sturgeon Section (256-40) commercial sockeye salmon catch, Estimated age composition of Inner and Outer Ayakulik and Halibut Bay sections (256-10, 15, 20, 25, 30) commercial sockeye salmon catch, Estimated age composition of Olga Bay, Alitak Bay, and Moser Bay sections (excludes Dog Salmon Flats Section; , 41, and 43) commercial sockeye salmon catch, Estimated age composition of Cape Alitak and Humpy-Deadman sections (257-10, 20, 50, 60, 70) commercial sockeye salmon catch, Ayakulik River (Red Lake) sockeye salmon estimated catch by area, escapement, and estimated total run by age class, Ayakulik River (Red Lake) sockeye salmon brood table showing estimated returns from parent escapements by age class Frazer Lake (Dog Salmon Creek) sockeye salmon estimated catch by area, escapement, and estimated total run by age class, Frazer Lake (Dog Salmon Creek) sockeye salmon brood table showing estimated returns from parent escapements by age class Karluk Lake early-run sockeye salmon estimated catch by area, escapement, and estimated total run by age class, Karluk Lake early-run sockeye salmon brood table showing estimated returns from parent escapements by age class Karluk Lake late-run sockeye salmon estimated catch by area, escapement, and estimated total run by age class, Karluk Lake late-run sockeye salmon brood table showing estimated returns from parent escapements by age class Upper Station (South Olga lakes) early-run sockeye salmon estimated catch by area, escapement, and estimated total run by age class, Upper Station (South Olga lakes) early-run sockeye salmon brood table showing estimated returns from parent escapements by age class Upper Station (South Olga lakes) late-run sockeye salmon estimated catch by area, escapement, and estimated total run by age class, Upper Station (South Olga lakes) late-run sockeye salmon brood table showing estimated returns from parent escapements by age class Kodiak Salmon Test Fishery Summary, Estimated age composition of the Kodiak Salmon Test Fishery sockeye salmon catch (statistical area: ), iv

8 Figure LIST OF FIGURES Page 1. Kodiak Management Area commercial salmon fishing districts Salmon escapement, special harvest areas, and processing facility sampling locations in the Kodiak Management Area Kodiak Management Area commercial salmon statistical areas sampled to represent Uganik/Viekoda/Kupreanof harvest within the Northwest Kodiak District Kodiak Management Area commercial salmon statistical areas sampled to represent Uyak Bay harvest within the Northwest Kodiak District Kodiak Management Area commercial salmon statistical areas sampled to represent Moser/Olga gillnet (dotted) and Alitak seine area harvest Kodiak Management Area commercial salmon statistical areas sampled to represent the Southwest Kodiak District (Karluk/Sturgeon, Halibut/Gurney bays, and Ayakulik areas) harvests Ayakulik River (Red Lake) sockeye salmon escapement and catch estimates, , and the recent 10-year average estimated total run (average catch and escapement combined, ) Frazer Lake sockeye salmon escapement and catch estimates, , and the recent 10-year average estimated total run (average catch and escapement combined, ) Karluk Lake early-run sockeye salmon escapement and catch estimates, , and the recent 10- year average estimated total run (average catch and escapement combined, ) Karluk Lake late-run sockeye salmon escapement and catch estimates, , and the recent 10- year average estimated total run (average catch and escapement combined, ) Upper Station (South Olga Lakes) early-run sockeye salmon escapement and catch estimates, , and the recent 10-year average estimated total run (average catch and escapement combined, ) Upper Station (South Olga Lakes) late-run sockeye salmon escapement and catch estimates, , and the recent 10-year average estimated total run (average catch and escapement combined, ) Historical trends in the proportion of freshwater ages comprising the major Kodiak Island sockeye salmon annual runs 1985 to Historical trends in the proportion of saltwater ages comprising the major Kodiak Island sockeye salmon annual runs 1985 to v

9 ABSTRACT Over 2.1 million salmon were enumerated through Alaska Department of Fish and Game (ADF&G) salmon counting weirs in the Kodiak Management Area (KMA) during Of these fish, over 1.4 million were sockeye salmon Oncorhynchus nerka, which are the focus of sampling efforts. Approximately 9,600 adult sockeye salmon were sampled for age, sex, and length (ASL) on major river systems in the KMA; these data were used to represent escapement age compositions. The predominant age classes in the escapement were age-2.2 (52.0%), -1.3 (15.9%), and -2.3 (10.7%) fish, but primary age classes varied by system. Commercially-caught sockeye salmon were sampled by ADF&G for age estimation from several areas throughout the KMA. Approximately 13,000 scales were used to represent a combined commercial harvest of approximately 2.3 million sockeye salmon from sampled areas. ASL samples collected from the 2015 commercial catch revealed an age structure composed predominantly of age-1.3 (37.2%), -2.2 (34.1%), and -2.3 (13.8%); however, primary age classes varied by section and district. Sockeye salmon brood tables were updated for the Ayakulik, Frazer, Karluk, and Upper Station systems; 10-year average return-per-spawner estimates ranged from 1.3 for the Karluk early run to 2.8 for Frazer. The examination of historical trends in sockeye salmon age compositions shows tremendous variability within and among systems. Key words: Kodiak, escapement, sockeye salmon, commercial harvest, age, historical trends. INTRODUCTION The Kodiak Management Area (KMA) encompasses western Gulf of Alaska waters surrounding the entire Kodiak Archipelago in addition to the waters along the portion of the Alaska Peninsula from Cape Douglas to Kilokak Rocks (Figure 1). There are over 900 anadromous salmon systems identified in the KMA (Johnson and Daigneault 2013). All combined, these systems support 5 commercially important salmon species: Chinook Oncorhynchus tshawytscha, sockeye O. nerka, coho O. kisutch, pink O. gorbuscha, and chum O. keta salmon. An estimated 61 of these systems support sockeye salmon runs (Jackson and Keyse 2013). Weirs operated by the Alaska Department of Fish and Game (ADF&G) are vital for salmon enumeration into many KMA streams and provide the basis for inseason management actions regulating the commercial, sport, and subsistence fisheries in the area (Figure 2). Additional streams are monitored by aerial and foot surveys to index pink, chum, coho, and the remaining sockeye salmon escapements. The KMA is composed of 7 commercial salmon fishing districts and 56 sections (Figures 1 and 3 6). Directed commercial fisheries occur for sockeye, pink, chum, and coho salmon; Chinook salmon are not targeted. An overview of the KMA salmon fishery for the 2015 season can be found in the Kodiak Management Area commercial salmon fishery annual management report (Jackson et al. In prep). To open and close fisheries in season, managers use qualitative analyses of run timing, catch per unit effort statistics, species composition estimates, regulatory management plans, aerial survey estimates, test fishery results, and weir escapement counts (Jackson 2015). The targeted escapement goals for KMA salmon are found in Sagalkin et al. (2013). The Commercial Fisheries Division of ADF&G initiated an expanded catch and escapement sampling program in the KMA in 1985 focusing on sockeye salmon. The purpose of this program was to collect representative age, sex, and length (ASL) data from major sockeye salmon systems as well as representative age data from selected commercial sockeye salmon harvests. These data continue to expand the KMA salmon baseline ASL database. Samples are used to reconstruct sockeye salmon runs, employ age marker analysis, conduct scale pattern analyses, and examine historical harvest proportions to estimate specific stock contributions to 1

10 commercial fisheries in the KMA (Baer and Honnold 2002; Barrett and Nelson 1995; Foster ; Moore ; Nelson 1999; Nelson and Barrett 1994; Nelson and Swanton 1996, 1997; Sagalkin 1999; Swanton 1992; Wattum 2015a; Witteveen et al. 2005). Accordingly, these samples provide the foundation for preseason run forecasting and escapement goal evaluation. Data published in this report supersede any data previously published. OBJECTIVES This report presents the results of the 2015 KMA salmon sampling programs. While there is some interpretation and discussion of these data, this report does not provide a rigorous analysis, but rather aims to cover the following objectives: 1. Report the escapements by system and species in 2015 (sockeye salmon returning to systems with weirs). 2. Provide ASL summaries from sockeye salmon sampled from both the escapement and commercial harvest. Historical trends and productivity (return-per-spawner) for select salmon stocks will be described. 3. Reconstruct the 2015 run size for select sockeye salmon stocks in the KMA. 4. Describe the results of the Kodiak salmon test fishery. ABUNDANCE ESTIMATES Escapement METHODS Salmon escapement was estimated by ADF&G using weirs at 9 river systems in the KMA. The following 8 systems are included in this report: Afognak (Litnik), Ayakulik (Red Lake), Frazer (Dog Salmon Creek), Karluk, Pasagshak, Pauls Lake, Saltery, and Upper Station (South Olga lakes; Table 1). The Division of Sport Fish operated weirs within the Buskin River system, but this system falls outside the scope of this report. Escapements at weirs were enumerated by field technicians and biologists using hand tally denominators as fish migrated upstream through aluminum panel gates. Gates were closed to allow fish buildup and were intermittently opened to allow salmon enumeration and passage. Full descriptions of weirs are reported in the KMA Weir Descriptions and Salmon Escapement Report (Fuerst In prep). Escapement estimates by system included weir counts and estimates of escapement added to the total weir counts when high water events washed out weirs or after weir removal. Escapements were estimated by aerial or foot surveys when not directly counted. Commercial Harvest KMA salmon catch numbers for the 2015 season were obtained from summary reports of individual harvest receipts (fish tickets). The fish ticket and escapement databases were edited by Kodiak area salmon management biologists prior to summary reports being generated in December

11 AGE, SEX, AND LENGTH SAMPLING ASL data were collected from both the escapement and the commercial catch. When possible, all scales were collected from the preferred area of each fish following procedures outlined by the International North Pacific Fisheries Commission (INPFC 1963). Scales were mounted on scale gum cards and impressions were made on cellulose acetate (Clutter and Whitesel 1956). Fish ages were assigned by examining scale impressions for annual growth increments using a microfiche reader fitted with a 60X lens following designation criteria established by Mosher (1968). Ages were recorded directly into a database via the Kodiak intranet salmon aging utility and are displayed in this report using European notation (Koo 1962), in which a decimal separates the number of winters spent in fresh water (after emergence) from the number of winters spent in salt water. The total age of the fish includes an additional year that does not show up on scale as an annual growth increment and is not recorded using this notation, which represents the time between egg deposition and emergence of fry. Length measurements were taken from mid eye to tail fork in millimeters, and sex was determined from external morphological characteristics. Data were typically recorded in field notebooks and then digitized using tablets or netbook computers (Wattum and Foster 2015). The ASL data summaries were computed for each escapement sample. Age and sex composition were estimated daily by interpolating between sampling events, then summarized weekly. When sampling goals were not achieved, the escapement age composition estimate was limited to the statistical week in that the sample was taken. Length composition data were summarized by age and sex. Descriptions of component programs used to compute ASL composition summaries can be found in database end user documentation (Unpublished ADF&G Commercial Fisheries Division database documentation, Neil Moomey, 2015, Kodiak, Alaska). Escapement Sockeye salmon escapements were sampled weekly for ASL data at the Afognak (ADF&G stream number ), Ayakulik (ADF&G stream number ), Frazer (ADF&G stream number ), Karluk (ADF&G stream number ), Pasagshak (ADF&G stream number ), Saltery (ADF&G stream number ), and Upper Station (ADF&G stream number ) weirs (Figure 2; Wattum and Foster 2015). Frazer Lake salmon were initially enumerated at the Dog Salmon weir (near saltwater) and then counted again as they ascend the fish pass into Frazer Lake. Statistical (sampling) weeks and dates are presented in Table 2. Fish were generally collected using a live-box trap attached to the upstream side of the weir(s). During August and September, Karluk River samples were sometimes collected with a beach seine in the lagoon when scale samples collected at the weir indicated heavy reabsorption or if fish movement was nonexistent. Reabsorption occurs when spawning adults stop feeding and absorb protein from their bodies, leaving only the center of their scales. Escapement sampling methods can be found in Wattum and Foster (2015). Commercial Harvest Catch samples were collected weekly in Kodiak, Larsen Bay, and Alitak (Lazy Bay; Figures 2 6) for age data from fish harvested in several geographical areas throughout the KMA (Table 3). Catch sampling methods can be found in Wattum and Foster (2015). 3

12 Total catch-at-age by area and day were estimated by multiplying the daily age composition of a particular sample by the daily catch from the corresponding catch area. Age composition of the catch from days not sampled was estimated using linear interpolation between sampling events. SOCKEYE SALMON RUN RECONSTRUCTION ESTIMATES Ayakulik River (Red Lake) The majority of sockeye salmon bound for Ayakulik are assumed to be harvested within the SW Kodiak District. Historically, the Ayakulik run reconstruction was accomplished by combining the Ayakulik River weir sockeye salmon escapement, 90% of the total Inner and Outer Ayakulik sections sockeye salmon catch, and 33% of the Halibut Bay Section sockeye salmon catch for the period from 21 June through 1 August by age class (Witteveen et al. 2005). Due to the age composition and timing of the Ayakulik-Halibut Bay catch samples, 75% of the Ayakulik- Halibut Bay sections harvest from the 2015 season were used to estimate the commercial catch attributable to the Ayakulik sockeye salmon run. In the Karluk and Sturgeon sections of the SW Kodiak District, 25% of the fish caught were attributable to the Ayakulik sockeye salmon run through 29 August. Estimates by age class were assigned to the parent year (brood year) escapement and R/S estimates were calculated by dividing annual returns by respective parent year escapements. Although the Ayakulik sockeye salmon run reconstruction and brood tables were not separated into early- and late-run components, historically (prior to 1989) the run was treated as such. In addition, separate early- and late-run goals for Ayakulik sockeye salmon were reinstituted in 2011 (Nemeth et al. 2010). Thus, the 2015 Ayakulik age and sex composition tables contained in this report are separated into early and late components for comparative purposes; however, separate early- and late-run brood tables have not yet been developed. While Ayakulik early- and late-run sockeye salmon are genetically distinct, the 2 runs are not as temporally distinct as that observed at Karluk and Upper Station. Therefore the early- and laterun separation date of 15 July is fairly arbitrary but was chosen for consistency with the other early- and late-run Kodiak sockeye salmon systems. Frazer Lake (Dog Salmon Creek) The majority of sockeye salmon bound for Frazer Lake are assumed to be harvested in the Alitak District. Run timing of Frazer Lake (Dog Salmon Creek) sockeye salmon coincides with both the early and late runs to Upper Station (Sagalkin 1999), and therefore run reconstructions for both are done concurrently. Based on previous studies (Swanton 1992, Tyler et al. 1986), 80% of the catch in the Cape Alitak and Humpy-Deadman sections and 95% of the catch in the Alitak, Moser, and Olga Bay sections were assumed to be of either Frazer Lake or Upper Station origin (Witteveen et al. 2005). The Frazer Lake catch estimate was based on a weekly proportion (using a running 3-day average) of Frazer/Upper Station harvest proportion escapement on 80% of the Cape Alitak and Humpy-Deadman sections harvest and 95% of the Alitak, Moser, and Olga bays section harvest. In 2015, fishing occurred in the Dog Salmon Flats Section. Harvest in this section was attributed to Frazer (75%) and Upper Station (25%). The Frazer and Upper Station age composition estimates, determined from scale samples collected weekly, were used to apportion harvest to the Frazer and Upper Station runs. The differences between Frazer and Upper Station travel time between gillnet harvest and escapement were accounted for in the analysis (Foster 2003). The catch estimate for Frazer Lake, by age class, was added to escapement counted at Dog Salmon (including culled jacks). Total run estimates by age class 4

13 were assigned to the parent year (brood year) escapement and R/S estimates were calculated by dividing annual returns by respective parent year escapements. The Frazer brood table in this document has been updated from what was previously published 1. Frazer Lake sockeye salmon are initially enumerated at the Dog Salmon weir (but not sampled) and then counted again (and sampled for ASL) as they ascend the fish pass into Frazer Lake. A change in sampling design at Frazer fish pass occurred in 2012, and was discovered in the fall of This change in methods resulted in a biased estimate of age composition. From 2012 to 2015, some jacks were left out of the population sample, which resulted in an underestimation of the contribution of jacks to the overall age composition. The age composition estimate of the escapement used in the Frazer brood table previously came from applying the age composition sampled at the Frazer fish pass to the number of fish that passed through the Dog Salmon weir. The age sample at Frazer was assumed to reflect the age composition of the escapement at Dog Salmon weir, as it was found to be statistically similar when tested in Due to the sampling errors beginning in 2012, the relative age compositions at Frazer fish pass and Dog Salmon weir were not the same. The sample error did not affect the count of jacks at Dog Salmon weir, which allowed staff to develop a reasonable estimate of the age composition. To account for the error, the population level age composition was not applied to the total fish counted at Dog Salmon Weir. Instead, the age compositions were segregated into jacks and large fish (non-jacks). The jack age composition at Frazer was applied to the number of jacks counted at Dog Salmon weir, and the age composition of the larger fish was applied to the count of large fish from Dog Salmon weir. This method of age composition calculation was used for return years 2002 to 2014 and will be used in future age composition estimates for the Frazer system, even after the sampling design is corrected. Karluk Lake Early Run The majority of Karluk sockeye salmon are assumed to be harvested within the NW and SW Kodiak Districts (Barrett and Nelson 1995). A natural age marker (freshwater-age-3) was used to estimate the number by age class of sockeye salmon bound for Karluk Lake that were harvested in the westside Kodiak commercial fishery (Witteveen et al. 2005). Karluk early- and late-run sockeye salmon are temporally and genetically distinct. The early run typically escapes in June and early July. Catch through 15 July and escapement through 21 July has historically been considered the early run; the 6-day difference between the 2 dates accounts for the considerable lag time between harvest and escapement at Karluk weir. The number of Karluk Lake-bound sockeye salmon harvested in the Central, Karluk, Sturgeon, Halibut Bay, and Ayakulik sections through 15 July was estimated following the methods described in Barrett and Nelson (1995). The total Karluk Lake early-run estimate was calculated by summing the escapement (through 21 July) and assigned catch numbers by age class. Estimates by age class were assigned to the parent year (brood year) escapement and return-perspawner (R/S) estimates were calculated by dividing annual returns by respective parent year escapements. 1 Table 55 is the updated Frazer Lake (Dog Salmon Creek) sockeye salmon brood table showing estimated returns from parent escapements by age class. 5

14 Late Run Karluk Lake late-run sockeye salmon typically escape in August and September. Catches after 15 July and escapements after 21 July have historically been considered the late run. The number of Karluk Lake-bound sockeye salmon harvested in the Central and Inner and Outer Karluk sections after 15 July were estimated following the methods described in Barrett and Nelson (1995). The total Karluk late-run estimate was determined by summing the escapement (after 21 July) and assigned catch numbers by age class. Estimates by age class were assigned to the parent year (brood year) escapement and R/S estimates were calculated by dividing annual returns by respective parent year escapements. Upper Station (South Olga Lakes) Early Run Upper Station (South Olga Lakes) has a temporally and genetically distinct early- and late-run sockeye salmon component that was estimated separately in The early run typically escapes in June and early July. Catch and escapement through 15 July has historically been considered the early run. Upper Station early-run sockeye salmon are generally harvested along with the Frazer Lake run in the Alitak District during June and early July. The early-run catch estimate was based on a weekly proportion of Frazer/Upper Station escapement differences as described above for the Frazer Lake run reconstruction through 15 July. Total run estimates by age class were assigned to the parent year (brood year) escapement and R/S estimates were calculated by dividing annual returns by respective parent year escapements. Late Run Upper Station late-run sockeye salmon typically escape in August and September. Catch and escapement after 15 July has historically been considered the late run. The number of Upper Station late-run sockeye salmon harvested in the Alitak District after 15 July were estimated in an identical fashion as the early run. The total Upper Station late-run estimate was determined by summing escapement counts after 15 July from the Upper Station weir and assigned catch numbers by age class. Estimates by age class were assigned to the parent year (brood year) escapement and R/S estimates were calculated by dividing annual returns by respective parent year escapements. BROOD TABLES AND HISTORICAL TRENDS All run reconstruction estimates were used to update their respective brood tables. Reliable and consistent run reconstruction data for Karluk Lake only date back to 1985; however, smaller more defined harvest areas for Ayakulik, Frazer Lake, and Upper Station salmon provide reliable data back to the early 1970s. Total run estimates and annual trends in freshwater and saltwater ages of sockeye salmon, by run year, were graphed for visual interpretation (Figures 7 14). KODIAK SALMON TEST FISHERY A purse seine test fishery was conducted in the Outer Karluk Section of the Southwest Kodiak District on 27 and 28 May. Catches from each set were enumerated by species, and scale samples were collected for age estimation. Test fishery protocol follow the methods of the Kodiak Sockeye Salmon Test Fishery Operational Plan (Wattum 2015b). 6

15 RESULTS ABUNDANCE ESTIMATES AND ASL DATA Escapement Escapement estimates through 9 weirs in the KMA are found in Tables 4 and 5. Salmon counted at the Frazer fish pass initially travel through the Dog Salmon weir. Typically there are a varying number of fish that pass Dog Salmon weir but fail to get counted at the Frazer fish pass. Sockeye salmon that fail to get counted at Frazer fish pass may not spawn, and therefore the Frazer fish pass count is considered the best escapement estimate for sockeye salmon. A total of 9,567 escapement scale samples were ageable and used to represent a combined escapement of 1,464,322 sockeye salmon (Table 6). To simplify reporting hereafter, all estimates of age composition will be rounded to the nearest percent. Primary age classes varied by system and area, but overall age-2.2 (52%), -1.3 (16%), and -2.3 (11%) were most abundant. Individual age, length, and sex composition summaries by escapement area are presented in Tables 7 through 36. Age-1.3 (46%), -1.2 (30%), and -2.3 (15%) sockeye salmon predominated Afognak Lake escapement (Table 7). Escapement to Ayakulik River was composed of age-1.3 (64%), -2.2 (17%), and -1.2 (11%) sockeye salmon in the early run (Table 10) and by age-2.2 (46%), -1.3 (29%), and -1.2 (11%) sockeye salmon in the late run (Table 13). Frazer Lake escapement was predominated by age-2.2 (43%), -2.3 (29%) and -2.1 (22%) sockeye salmon (Table 15). Escapement at Karluk Lake was predominated by age-2.2 (71%), -2.1 (9%), and -2.3 (7%) sockeye salmon in the early run (Table 18) and by age-2.2 (67%), -2.1 (11%) and -3.2 (9%) sockeye salmon in the late run (Table 21). Pasagshak River sockeye salmon were composed primarily of age-1.2 (34%), -0.3 (29%), and -1.3 (25%) fish (Table 23). Escapement to Pauls Lake was predominated by age-1.2 (39%), -2.1 (19%), and -1.3 (19%) sockeye salmon (Table 26). Saltery Lake escapement was predominated by age-1.2 (29%), -2.2 (17%) and -1.3 (17%) sockeye salmon (Table 29). Escapement at Upper Station was predominated by age-2.2 (76%) and -2.1 (13%) fish in the early run (Table 32) and by age-2.2 (75%) and -1.2 (9%) sockeye salmon in the late run (Table 35). In 2015, for all ages combined, the average length of sockeye salmon was largest in Afognak Lake (514 mm; Table 8), and smallest at Pauls Lake (453 mm; Table 27). For age-2.2 sockeye salmon, average length of sockeye salmon was largest in the Upper Station late run (528 mm; Tables 36 and 37) and smallest at Pauls Lake (464 mm; Tables 27 and 37). Age-2.3 sockeye salmon were largest in the Upper Station late run (555 mm; Tables 36 and 38) and smallest in the Karluk early run (518 mm; Tables 19 and 38). Sex percentages of sockeye salmon escapement samples ranged from 39% female at Pauls Lake (Table 28) to 60% female for the Ayakulik early and Pasagshak runs (Tables 12 and 25). Commercial Harvest During the 2015 season, samples from commercially harvested sockeye salmon (13,078 ageable scales) were used to represent the commercial catch from areas throughout the KMA (Table 39). These samples were used to represent a combined catch of 2,251,917 sockeye salmon. The overall sockeye salmon catch was predominantly composed of age-1.3 (37%), -2.2 (34%), and - 7

16 2.3 (14%) fish; however, primary age classes varied by section and district. Individual age, length, and sex composition summaries by catch are presented in Tables 40 through 45. The commercial sockeye salmon catch from Uganik Bay, Viekoda Bay, and Kupreanof Strait was composed predominately of age-1.3 (43%), -2.2 (32%), and -1.2 (12%) fish (Table 40). Commercial harvests in Uyak Bay were predominantly composed of age-1.3 (41%), -2.2 (28%), and -2.3 (13%) sockeye salmon (Table 41). The Karluk and Sturgeon sections catch was composed primarily of age-2.2 (69%), -1.3 (12%) and -1.2 (9%) fish (Table 42). The Ayakulik and Halibut Bay sections of the Southwest Kodiak District commercial sockeye salmon catches were predominated by age-1.3 (47%), -2.2 (25%), and -2.3 (14%) fish (Table 43). The inside gillnet areas of Alitak Bay, Moser Bay, and Olga Bay sections (not including the Dog Salmon Flats Section) had catch samples that were predominantly composed of age-2.3 (45%), -2.2 (25%) and -1.3 (24%) sockeye salmon (Table 44). Samples collected from the outside purse seine areas, which include the Cape Alitak and Humpy-Deadman sections, were predominantly composed of age-1.3 (43%), -2.3 (26%), and -2.2 (17%) sockeye salmon (Table 45). SOCKEYE SALMON RUN RECONSTRUCTION ESTIMATES Ayakulik River (Red Lake) The total run of sockeye salmon to the Ayakulik River in 2015 was estimated at 817,724 fish, with age-1.3 (48%), -2.2 (27%), and -1.2 (11%) fish accounting for the majority of the run (Table 46). The 2015 estimated run was greater than the 2014 run estimate of 627,422 fish, and above the recent 10-year average ( ) of 400,456 fish (Figure 7). The 1999 to 2008 Ayakulik sockeye salmon escapements have produced an estimated average return of 370,768 fish (range: 194, ,871) with an average R/S estimate of 1.9 (Table 47). Frazer Lake (Dog Salmon Creek) The 2015 Frazer Lake sockeye salmon total run estimate of 437,556 was predominantly composed of age-2.3 (40%), -2.2 (37%), and -2.1 (13%) fish (Table 48). The 2015 run was larger than the 2014 estimated run (426,265), and above the recent 10-year average ( ) of 351,506 fish (Figure 8). Frazer Lake sockeye salmon escapements from 1999 to 2008 have produced an estimated average return of 376,971 fish (range: 172, ,997) with an average R/S estimate of 2.8 (Table 49). Karluk Lake Early Run The 2015 Karluk Lake early sockeye salmon total run estimate of 385,741 was predominantly composed of age-2.2 (72%), -2.1 (7%), and -2.3 (7%) fish (Table 50). The estimated 2015 Karluk early run was slightly less than the 2014 run estimate but was above the recent 10-year average ( ) of 300,455 fish (Figure 9). The 1999 through 2008 Karluk early-run sockeye salmon escapements have produced an estimated average return of 321,642 fish (range: 54, ,682) with an average R/S estimate of 1.3 (Table 51). Late Run The Karluk Lake late-run sockeye salmon total run was estimated to be 841,657 fish in 2015 (Table 52). Age-2.2 (69%), -3.2 (9%), and -2.3 (6%) fish were predominant. The 2015 run estimate was less than the 2014 run estimate of 1,288,362, but above the recent 10-year average 8

17 ( ) estimated run of 605,333 fish (Figure 10). The 1999 through 2008 Karluk Lake late-run sockeye salmon escapements have produced an estimated average return of 550,774 fish (range: 168,266 1,002,271) with an average R/S estimate of 1.6 (Table 53). Upper Station (South Olga Lakes) Early Run The 2015 Upper Station early sockeye salmon total run estimate of 66,104 was predominantly composed of age-2.2 (69%), -2.3 (12%), and -2.1 (11%) fish (Table 54). This estimated run was greater than the 2014 run of 44,562 sockeye salmon and below the 10-year average ( ) of 67,238 (Figure 11). The 1999 to 2008 Upper Station early-run sockeye salmon escapements have produced an estimated average return of 92,109 fish (range: 19, ,768) with an average R/S estimate of 2.0 (Table 55). Late Run The 2015 Upper Station late-run sockeye salmon total run estimate of 186,667 fish was predominantly composed of age-2.2 (62%), -1.2 (14%), and -2.3 (12%) fish (Table 56). The 2015 estimated run was less than the 2014 estimated run (194,052) and below the recent 10-year average ( ) of 240,411 fish (Figure 12). Upper Station late-run salmon escapements from 1999 to 2008 have produced an estimated average return of 281,526 fish (range: 110, ,610) with an average R/S estimate of 1.7 (Table 57). HISTORICAL SIZE AND AGE TRENDS OF KODIAK SOCKEYE SALMON Ayakulik (Red Lake) Freshwater residence time for Ayakulik sockeye salmon has generally been 2 years, but in recent years an increasing number of fish have been migrating to the ocean after spending only 1 year in Red Lake. In 2015, roughly 60% of the run was freshwater-age-1 and 39% freshwater-age-2 (Figure 13). Ayakulik River sockeye salmon commonly spend 2 years in the ocean but frequently rear at sea for 3 years. Age composition estimates from the 2015 run show that the saltwater-age-3 component was approximately 60%, and the saltwater-age-2 component was approximately 38% (Figure 14). In 2015 the average size of age-2.2 and -2.3 sockeye salmon at Ayakulik was below average; the average size at Ayakulik has generally declined since the 1980s (Tables 37 and 38). Frazer Lake Freshwater residence time for Frazer Lake sockeye salmon has typically been 2 years, but often fish will outmigrate to the ocean after only 1 year (Barrett 1989; Foster 2010; Sagalkin 1999). An increasing proportion of freshwater-age-3 fish were seen beginning in the 1990s. This component of the run declined for several years, spiked again in 2013, but remained low in 2015 (Figure 13). In 2015, the Frazer Lake sockeye salmon freshwater-age-2 component was by far the most abundant freshwater age class (89%). The freshwater-age-1 component was 7% in 2015 (Figure 13). Frazer Lake sockeye salmon commonly spend 2 years in the ocean but also rear at sea for 1 or 3 years (Figure 14). Inconsistent cycles and highly variable saltwater ages present at Frazer are not 9

18 surprising considering the recent colonization of this newly anadromous system. The last 10 years have shown considerable increases in the variability of the abundance of saltwater-age-1 fish, highlighted during the 2003 and 2007 runs, in which saltwater-age-1 sockeye salmon (jacks) outnumbered the saltwater-age-2 and -3 fish (Figure 14). The 2015 run was predominately saltwater-age-3 (45%) and -age-2 (41%) fish. The average size of 2015 age-2.2 and -2.3 sockeye salmon at Frazer (485 mm and 522 mm) was below the historical averages of 504 mm and 554 mm (Tables 37 and 38). Frazer Lake freshwater- and saltwater-ages fluctuate more than other major Westward Region sockeye salmon stocks. The recent abundance of saltwater-age-1 sockeye salmon has raised concern in the Alitak Bay area, leading management and research staff to closely monitor returns to the system. Karluk Lake Sockeye salmon freshwater residence time in Karluk Lake is typically 2 years, but often will extend to 3 years (Kyle et al. 1988; Rounsefell 1958). Since 1985, freshwater-age-2 sockeye salmon have predominated the annual runs, with the exception of the early 1990s and 2010 when freshwater-age-3 fish spiked in abundance (Figure 13). Freshwater-age-3 fish, while not normally predominant since the inception of sampling for salmon age (1920s), have consistently been an important part of the Karluk Lake early and late runs. It is important to note that extended freshwater residence for sockeye salmon often signifies decreased overall lake productivity and subsequent adult salmon returns (Foerster 1968). Recently, decreases in the freshwater-age-3 component from highly elevated levels have been evident. Between 2003 and 2010, the freshwater-age-3 component of the early run increased from 13% to 47% (Figure 13). From 2011 to 2014, the percentage of freshwater-age-3 sockeye in the Karluk Lake early run decreased from 36% to 1%, bringing it well below historical levels. The freshwater-age-3 component of the Karluk Lake late run saw slight increases beginning in the early 2000s, but in 2009 and 2010, the Karluk Lake late-run freshwater-age-3 component was unusually high (90% and 73%). This component of the run has decreased in recent years from 35% in 2011 to 10% in 2015 (Figure 13). Both early- and late-run Karluk Lake sockeye salmon typically spend 2 years in the ocean, making age-2.2 the dominant historical age class since the 1920s. The late run has historically had a smaller saltwater-age-3 component. Following the historical trend, in 2015 both the early and late runs were composed predominately of saltwater-age-2 fish (Figure 14). Average size of age-2.2 sockeye salmon at Karluk Lake has generally declined since the mid- 1980s (Table 37). The 2015 average length of age-2.2 sockeye salmon for the Karluk early and late runs was near or below historical averages (Table 37). In 2015, the early run age-2.2 fish averaged 500 mm, and the late run age-2.2 fish averaged 509 mm. Upper Station (South Olga Lakes) Freshwater residence time for Upper Station early-run sockeye salmon has typically been 2 years, but often fish will outmigrate to the ocean after only 1 year as indicated by age data from the escapement; in 2015 the proportions favored freshwater-age-2 fish (92% for the early run and 78% for the late run). From the late 1980s to the mid-1990s, freshwater-age-2 fish were predominant in the early run, but the late run demonstrated strong components of freshwater-age- 0 (Figure 13) sockeye salmon that coincided with extremely large runs (Foster 2011). Since the 10

19 mid-1990s, the early run has shown strong components of both freshwater-age-1 and age-2 fish, whereas the late run has been predominately freshwater-age-2 fish. Upper Station sockeye salmon typically spend 2 years in the ocean but also commonly stay at sea for 3 years. In 2015, the Upper Station early and late runs were composed predominately of saltwater-age-2 sockeye salmon (71% and 77% respectively; Figure 14). In 2015, the average size of age-2.2 and -2.3 sockeye salmon in both the early and late runs at Upper Station were below the historical averages (Tables 37 and 38). KODIAK SALMON TEST FISHERY A total of 3,128 sockeye salmon were harvested during the test fishery in On 27 May, 12 sets (8 at Cape Uyak) were completed. On 28 May, 11 sets (5 at Cape Uyak) were completed. The standardized sets (sets at Cape Uyak) yielded an average of approximately 119 sockeye salmon per set in 2015 (range since the inception of the test fishery: ). In 2015, sets were also made at Pafco Point and Tarabuchi Rocks in an attempt to avoid the harvest of abundant Pollock. A summary of the test fishery is presented in Table 58. Scale samples were collected from 726 sockeye salmon for age determination. The 2015 sockeye salmon test fish consisted predominantly of age-2.2 (74%), -1.3 (10%), and -1.2 (7%) sockeye salmon (Table 59). ACKNOWLEDGEMENTS Alaska Department of Fish and Game management and research personnel from the Division of Commercial Fisheries collected the data presented in this report with assistance from some Kodiak Reginal Aquaculture Association staff. The author would like to thank anyone who assisted with data collection or logistics. Geoff Spalinger, Heather Finkle, Alyssa Hopkins, and an anonymous peer reviewer provided editorial advice. Kathy Greer contributed her publication expertise. 11

20 REFERENCES CITED Baer, R., and S. Honnold A straying assessment of an introduced sockeye salmon stock on the northern Afognak Island as determined by two methods of stock identification. Alaska Department of Fish and Game, Division of Commercial Fisheries, Regional Information Report 4K02-56, Kodiak. Barrett, B Frazer Lake sockeye salmon investigations, Alaska Department of Fish and Game, Division of Commercial Fisheries, Technical Fishery Report No , Juneau. Barrett, B., and P. Nelson Estimation of Karluk Lake early- and late-run sockeye returns based on scale age data, Alaska Department of Fish and Game, Commercial Fisheries Management and Development Division, Regional Information Report 4K95-44, Kodiak pdf Clutter, R., and L. Whitesel Collection and interpretation of sockeye salmon scales. International Pacific Salmon Fisheries Commission, Bulletin 9, New Westminster, British Columbia, Canada. Foerster, R. E The sockeye salmon, Oncorhynchus nerka. Bulletin 162, Fisheries Research Board of Canada, Ottawa. Foster, M Alitak Bay test fishery research summary Alaska Department of Fish and Game, Fishery Management Report No , Anchorage. Foster, M Kodiak management area salmon escapement and catch sampling results, Alaska Department of Fish and Game, Fishery Management Report No , Anchorage. sf.adfg.state.ak.us/fedaidpdfs/fmr06-38.pdf Foster, M Kodiak management area salmon escapement and catch sampling results, Alaska Department of Fish and Game, Fishery Management Report No , Anchorage. state.ak.us/fedaidpdfs/fmr07-14.pdf Foster, M Kodiak management area salmon escapement and catch sampling results, Alaska Department of Fish and Game, Fishery Management Report No , Anchorage. state.ak.us/fedaidpdfs/fmr08-37.pdf Foster, M Kodiak management area salmon escapement and catch sampling results, Alaska Department of Fish and Game, Fishery Management Report No , Anchorage. state.ak.us/fedaidpdfs/fmr09-24.pdf Foster, M. B Kodiak management area salmon escapement and catch sampling results, Alaska Department of Fish and Game, Fishery Management Report No , Anchorage. state.ak.us/fedaidpdfs/fmr10-28.pdf Foster, M. B Kodiak management area salmon escapement and catch sampling results, Alaska Department of Fish and Game, Fishery Management Report No Anchorage. /FedAidPDFs/FMR11-30.pdf Fuerst, B. A. In prep. Kodiak Management Area weir descriptions and salmon escapement report, Fishery Management Report, Anchorage. INPFC (International North Pacific Fisheries Commission) Annual Report Vancouver, British Columbia. Jackson, J Kodiak management area harvest strategy for the 2015 commercial salmon fishery. Alaska Department of Fish and Game, Fishery Management Report No , Anchorage. FedAidPDFs/FMR15-16.pdf Jackson, J., and M. Keyse Kodiak Management Area commercial salmon fishery annual management report, Alaska Department of Fish and Game, Fishery Management Report No , Anchorage. adfg.alaska.gov/fedaidpdfs/fmr13-44.pdf Jackson, J., T. Anderson, and B. Fuerst. In prep. Kodiak Management Area commercial salmon fishery annual management report, Alaska Department of Fish and Game, Fishery Management Report, Anchorage. 12

21 REFERENCES CITED (Continued) Johnson, J., and M. Daigneault Catalog of waters important for spawning, rearing, or migration of anadromous fishes Southwestern Region, Effective July 1, Alaska Department of Fish and Game, Special Publication No , Anchorage. Koo, T Age designation in salmon. Pages [In] T. S. Y. Koo, editor. Studies of Alaska red salmon. University of Washington Publications in Fisheries, New Series, Volume I, Seattle. Kyle, G., J. Koenings, and B. Barrett Density-dependent, trophic level responses to an introduced run of sockeye salmon (Oncorhynchus nerka) at Frazer Lake, Kodiak Island, Alaska. Canadian Journal of Fisheries and Aquatic Science 45: Moore, M. L Kodiak management area salmon escapement and catch sampling results, Alaska Department of Fish and Game, Fishery Data Series No , Anchorage. FedAidPDFs/FDS12-30.pdf Moore, M. L Kodiak management area salmon escapement and catch sampling results, Alaska Department of Fish and Game, Fishery Data Series No , Anchorage. FedAidPDFs/FDS13-48.pdf Moore, M. L Kodiak Management Area salmon escapement and catch sampling results, Alaska Department of Fish and Game, Fishery Data Series No , Anchorage. FedAidPDFs/FDS14-06.pdf Mosher, K Photographic atlas of sockeye salmon scales. Bureau of the U.S. Fish and Wildlife Service. Fishery Bulletin 67(2): Nelson, P An estimate of Spiridon Lake sockeye salmon commercially harvested within the Southwest Afognak Section and Northwest Kodiak District, Alaska Department of Fish and Game, Division of Commercial Fisheries, Regional Information Report 4K99-25, Kodiak. FedAidpdfs/RIR.4K pdf Nelson, P. A., and B. M. Barrett An estimate of the number of Spiridon Lake Sockeye salmon commercially harvested within the Northwest Kodiak and Southwest Kodiak Districts, Alaska Department of Fish and Game, Commercial Fisheries Management and Development Division, Regional Information Report 4K94-43, Kodiak. Nelson, P., and C. Swanton An estimate of Spiridon Lake sockeye salmon commercially harvested within the Northwest Kodiak and Southwest Kodiak Districts, Alaska Department of Fish and Game, Division of Commercial Fisheries, Regional Information Report 4K96-32, Kodiak. FedAidPDFs/rir.4k pdf Nelson, P., and C. Swanton An estimate of Spiridon Lake sockeye salmon commercially harvested within the Southwest Afognak Section and Northwest Kodiak District, Alaska Department of Fish and Game, Division of Commercial Fisheries, Regional Information Report 4K97-44, Kodiak. FedAidPDFs/RIR.4K pdf Nemeth, M. J., M. J. Witteveen, M. B. Foster, H. Finkle, J. W. Erickson, J. S. Schmidt, S. J. Fleischman, and D. Tracy Review of escapement goals in 2010 for salmon stocks in the Kodiak Management Area, Alaska. Alaska Department of Fish and Game, Fishery Manuscript Series No , Anchorage. alaska.gov/fedaidpdfs/fms10-09.pdf Rounsefell, G Factors causing decline in sockeye salmon of Karluk River, Alaska. USFWS Fishery Bulletin 58(130)88. Sagalkin, N Frazer Lake fish pass sockeye salmon smolt and adult research, 1997 and Alaska Department of Fish and Game, Division of Commercial Fisheries, Regional Information Report 4K99-59, Kodiak. 13

22 REFERENCES CITED (Continued) Sagalkin, N. H., B. Foster, M. B. Loewen, and J. W. Erickson Review of salmon escapement goals in the Kodiak Management Area, 2013, Alaska. Alaska Department of Fish and Game, Fishery Manuscript Series No , Anchorage. Swanton, C Stock interrelationships of sockeye salmon runs, Alitak Bay District, Kodiak Island, Alaska. Master s Thesis, University of Washington, Seattle. Tyler, R., L. Malloy, D. Prokopowich, and K. Manthey Migration of sockeye salmon in the Kodiak Archipelago, Alaska Department of Fish and Game, Division of Commercial Fisheries, Informational Leaflet No. 254, Juneau. Wattum, M. L. 2015a. Kodiak Management Area salmon escapement and catch sampling results, Alaska Department of Fish and Game, Fishery Data Series No , Anchorage. FedAidPDFs/FDS15-20.pdf Wattum, M. L. 2015b. Kodiak Management Area sockeye salmon test fishery operational plan, Alaska Department of Fish and Game, Division of Commercial Fisheries, Regional Operational Plan ROP.CF.4K , Kodiak. Wattum, M. L. and M. B. Foster Kodiak Management Area salmon catch and escapement sampling operational plan, Alaska Department of Fish and Game, Division of Commercial Fisheries, Regional Operational Plan ROP.CF.4K , Kodiak. ROP.CF.4K pdf Witteveen, M., N. Sagalkin, M. Foster, K. Bouwens, S. Honnold, S. Schrof, and R. Baer Westward region salmon run reconstruction for the 2003 season and forecasting for the 2004 season. Alaska Department of Fish and Game, Division of Commercial Fisheries, Regional Information Report 4K05-02, Kodiak. 14

23 TABLES AND FIGURES 15

24 Table 1. Kodiak Management Area sockeye salmon escapement sampling schedule, Strata Weekly Early Late Sample location Crew supervision Stream number target a 6/1 7/15 7/16 9/30 Total Major Systems Ayakulik River weir Spalinger to ,200 Frazer Lake fish pass Ruhl to ,200 Karluk River weir Spalinger to ,200 Upper Station weir Anderson to , Minor Systems Afognak (Litnik) weir Ruhl to Pasagshak River weir Witteveen to Pauls Lake weir Richardson to Saltery Lake weir Richardson to a The weekly targeted sample size will be determined by the crew leader and based on escapement magnitude; please refer to the Escapement Sample Size section within the 2015 Kodiak Management Area Salmon Catch and Escapement Sampling Operational Plan (Wattum and Foster 2015).

25 Table 2. Statistical weeks and corresponding calendar dates, Week Calendar dates Week Calendar dates 10 1-Mar 7-Mar 28 5-Jul 11-Jul 11 8-Mar 14-Mar Jul 18-Jul Mar 21-Mar Jul 25-Jul Mar 28-Mar Jul 1-Aug Mar 4-Apr 32 2-Aug 8-Aug 15 5-Apr 11-Apr 33 9-Aug 15-Aug Apr 18-Apr Aug 22-Aug Apr 25-Apr Aug 29-Aug Apr 2-May Aug 5-Sep 19 3-May 9-May 37 6-Sep 12-Sep May 16-May Sep 19-Sep May 23-May Sep 26-Sep May 30-May Sep 3-Oct May 6-Jun 41 4-Oct 10-Oct 24 7-Jun 13-Jun Oct 17-Oct Jun 20-Jun Oct 24-Oct Jun 27-Jun Oct 31-Oct Jun 4-Jul 45 1-Nov 7-Nov 17

26 Table 3. Kodiak Management Area sockeye salmon catch sampling schedule, Strata District Primary Weekly Early Late Season Geographic area District or sections sampling site target a 6/1 7/15 7/16 9/30 total NW Kodiak District Uganik-Kupreanof 253 Kodiak 80 to ,200 Uyak Bay 254 Larsen Bay 80 to ,200 Alitak District Cape Alitak/Humpy Deadman , 20, 50, 60, 70 Alitak 80 to ,200 Moser/Olga/Alitak Bay Alitak 80 to , SW Kodiak District Karluk/Sturgeon ; Larsen Bay 80 to ,200 Ayakulik/Halibut Bay Larsen Bay/Alitak 80 to ,200 Total 3,600 3,600 7,200 a The weekly targeted sample size will be determined by the crew leader and based on weekly nature of the commercial fishery; please refer to the Catch Sample Size section within the 2015 Kodiak Management Area Salmon Catch and Escapement Sampling Operational Plan (Wattum and Foster 2015).

27 Table 4. Daily and cumulative (cum.) sockeye salmon escapement counted through weirs by system, Kodiak Management Area, System (weir) Afognak Ayakulik Dog Salmon Frazer fish pass Karluk Pasagshak Pauls Saltery Upper Station Date Daily Cum. Daily Cum. Daily Cum. Daily Cum. Daily Cum. Daily Cum. Daily Cum. Daily Cum. Daily Cum. 5/ / / / / / / / / / / / / / / / , / , / , , ,213 4, ,199 5/29 1,537 4,316 1,204 2, ,733 6, ,461 5/ ,131 3,949 6, ,374 8, ,583 5/ ,181 4,482 10, ,438 14, ,316 6/ ,304 2,669 13, ,632 30, ,124 3,440 6/ ,412 5,199 18, ,240 40, ,419 6/3 40 5,452 4,152 22, ,369 45, ,270 6/ ,870 2,562 25, ,247 51, ,434 6,704 6/ , , ,256 54, ,698 6/6 1,651 7,891 10,887 37, , ,359 9,057 6/7 4,068 11,959 5,595 42, ,769 57, ,623 10,680 6/ , ,041 5,742 5, , ,164 11,844 6/9 2,739 15,238 1,821 44,862 1,942 7, ,198 82, ,057 1,342 13,186 6/10 2,256 17, ,342 6,647 14, ,214 92, ,192 1,570 14,756 6/ ,979 1,150 46,492 4,100 18, ,486 93, ,502 3,174 17,930 6/12 1,292 19,271 1,111 47,603 6,900 25, , , , ,261 21,191 -continued-

28 Table 4. Page 2 of System (weir) Afognak Ayakulik Dog Salmon Frazer fish pass Karluk Pasagshak Pauls Saltery Upper Station Date Daily Cum. Daily Cum. Daily Cum. Daily Cum. Daily Cum. Daily Cum. Daily Cum. Daily Cum. Daily Cum. 6/ ,433 37,582 85,185 5,561 31,035 3,832 3,979 5, , , ,001 24,192 6/ ,949 7,935 93,120 4,011 35,046 1,216 5,195 7, , , ,653 25,845 6/ ,315 8, ,002 3,493 38,539 4,628 9,823 11, , , ,225 27,070 6/ ,559 4, ,910 2,417 40,956 7,803 17,626 4, , , ,633 28,703 6/ , ,859 2,923 43,879 8,097 25,723 5, , , ,562 30,265 6/ ,338 3, ,039 7,855 51,734 2,652 28,375 1, , , ,719 32,984 6/ ,739 2, ,088 4,329 56,063 1,747 30,122 1, , , ,455 35,439 6/ ,931 2, ,996 2,788 58,851 2,548 32,670 5, , , ,729 37,168 6/ , ,929 2,790 61,641 6,887 39, , , ,350 38,518 6/ ,295 4, ,439 3,149 64, ,308 4, , , ,502 6/ ,392 4, ,015 1,245 66,035 1,232 41,540 1, , , ,205 6/ ,624 10, ,741 2,200 68,235 6,654 48,194 2, , , ,009 6/ ,707 2, ,371 2,371 70,606 2,215 50, , , , ,841 6/ ,971 9, ,967 7,306 77,912 1,867 52,276 1, , , ,537 1,207 43,048 6/ ,038 7, ,785 5,259 83,171 1,917 54,193 2, , , ,656 2,471 45,519 6/ ,045 1, ,586 2,933 86,104 2,198 56,391 6, , , , ,237 6/ , ,586 1,303 87,407 2,420 58, , , , ,639 6/ , ,617 1,886 89,293 3,409 62,220 7, , , , ,948 7/ , ,903 2,003 91,296 1,527 63, , ,266 5, , ,132 7/ ,161 2, ,484 2,902 94,198 1,478 65,225 1, , , , ,288 7/ ,518 3, ,320 3,658 97,856 5,161 70,386 4, , , , ,017 7/4 5,281 29,799 5, ,168 3, , ,636 6, , , , ,894 7/ ,823 3, ,380 5, , ,793 3, , , , ,445 7/ ,423 2, ,301 7, , , , ,625 2,408 5,691 1,190 50,635 7/ , ,257 5, ,693 1,580 73,032 3, , ,103 7,728 1,358 7, ,982 7/ ,511 5, ,824 4, ,583 3,339 76, , , , ,278 7/ ,582 7, ,261 2, ,023 1,753 78,124 5, , , , ,401 7/ ,998 6, ,662 1, ,981 3,314 81, , , , ,721 7/ ,097 5, ,513 3, ,421 13,666 95, , , , ,881 7/ ,203 2, ,515 3, , ,647 3, , , , ,490 7/ ,432 6, ,774 5, , ,998 4, , ,753 1,276 10,170 1,050 53,540 7/ ,592 6, ,959 7, ,961 5, ,618 7, , ,761 1,063 11, ,259 7/ , ,178 5, ,641 1, ,745 5, , , , ,473 -continued-

29 Table 4. Page 3 of System (weir) Afognak Ayakulik Dog Salmon Frazer fish pass Karluk Pasagshak Pauls Saltery Upper Station Date Daily Cum. Daily Cum. Daily Cum. Daily Cum. Daily Cum. Daily Cum. Daily Cum. Daily Cum. Daily Cum. 7/16 1,771 34, ,673 2, , ,151 8, , ,927 1,736 13, ,824 7/ ,731 2, ,660 2, , ,508 9, , ,639 1,546 15, ,014 7/ , ,545 7, ,179 12, , , ,730 1,092 16, ,341 7/ ,925 2, ,439 7, ,659 6, ,646 2, , ,812 1,748 18, ,902 7/ , ,875 9, ,075 3, ,081 1, , ,032 1,404 19, ,481 7/ ,063 2, ,035 10, ,761 8, ,805 4, , ,144 2,586 22, ,786 7/ , ,299 7, ,483 11, ,140 5, , ,178 1,958 24, ,935 7/ , ,750 3, ,556 4, ,922 2, , ,337 1,104 25, ,263 7/ , ,150 4, ,184 6, ,846 3, , , , ,431 7/ ,775 4, ,893 3, ,620 13, ,877 2, , , , ,536 7/ ,886 4, ,203 2, ,165 6, ,317 2, , ,826 2,156 28, ,610 7/ ,999 3, ,302 3, ,175 4, ,866 2, , ,931 1,945 30, ,721 7/ ,245 5, ,161 1, ,044 4, ,308 5, , , ,933 1,283 31, ,772 7/ ,301 3, ,854 2, ,745 6, , , , ,960 1,946 33, ,848 7/ ,560 4, , ,649 2, , , , ,174 1,005 34, ,958 7/ ,626 1, , ,220 2, ,970 1, , , , , ,988 8/ ,721 1, , ,160 2, , , , , , ,089 8/ ,775 2, ,072 1, ,534 2, , , , ,331 2,175 37, ,174 8/ ,868 5, ,471 1, ,845 2, ,494 4, , , ,378 1,907 39, ,215 8/ ,654 1, ,896 2, ,069 1, ,072 3, , , ,388 1,067 40, ,403 8/ ,696 3, ,330 1, ,196 1, ,988 1, , , ,402 1,913 42, ,564 8/ ,738 2, ,808 1, ,039 1, ,874 1, , , , , ,758 8/ ,803 1, ,350 2, ,813 2, ,253 2, , , ,599-42, ,920 8/ , , ,813 1, , , , ,641-42, ,055 8/ ,958 3, , ,813 1, ,214 10, , , ,735-42, ,174 8/ ,985 2, , ,813 1, ,197 1, , , ,740-42, ,442 8/ ,012 6, , ,813 1, ,192 4, , ,496-11,740-42, ,734 8/ ,018 3, , , ,093 1, , ,505-11,740-42,468 1,090 60,824 8/ ,019 4, , , ,093 3, , ,600-11,740-42,468 1,229 62,053 8/ ,052 5, , , , , ,626-11,740-42,468 1,649 63,702 8/ ,123 4, , , ,093 4, , ,627-11,740-42,468 1,446 65,148 8/ ,151 1, , , ,093 1, , ,077-11,740-42, ,639 8/17-38,151 2, , , ,093 27, ,131-2,077-11,740-42,468 2,234 67,873 8/18-38, , , ,093 7, ,330-2,077-11,740-42,468 2,342 70,215 -continued-

30 22 Table 4. Page 4 of 4. System (weir) Afognak Ayakulik Dog Salmon Frazer fish pass Karluk Pasagshak Pauls Saltery Upper Station Date Daily Cum. Daily Cum. Daily Cum. Daily Cum. Daily Cum. Daily Cum. Daily Cum. Daily Cum. Daily Cum. 8/19-38, , , , ,952-2,077-11,740-42,468 2,677 72,892 8/20-38,151 1, , , , ,157-2,077-11,740-42,468 2,705 75,597 8/21-38,151 3, , , ,093 2, ,510-2,077-11,740-42,468 2,431 78,028 8/22-38,151 6, , , ,093 1, ,590-2,077-11,740-42,468 5,005 83,033 8/23-38,151 5, , , , ,407-2,077-11,740-42,468 3,594 86,627 8/24-38,151 1, , , ,093 1, ,812-2,077-11,740-42,468 2,117 88,744 8/25-38, , , ,093 1, ,223-2,077-11,740-42,468 1,860 90,604 8/26-38, , , ,093 1, ,836-2,077-11,740-42,468 2,256 92,860 8/27-38, , , ,093 22, ,047-2,077-11,740-42,468 1,623 94,483 8/28-38, , , ,093 1, ,867-2,077-11,740-42,468 2,713 97,196 8/29-38, , , , ,818-2,077-11,740-42,468 2,093 99,289 8/30-38, , , ,093 1, ,469-2,077-11,740-42,468 3, ,910 8/31-38, , , , ,611-2,077-11,740-42,468 3, ,408 9/1-38, , , ,093 16, ,491-2,077-11,740-42,468 3, ,196 9/2-38, , , ,093 5, ,434-2,077-11,740-42,468 1, ,521 9/3-38, , , ,093 7, ,692-2,077-11,740-42,468 6, ,032 9/4-38, , , ,093 1, ,176-2,077-11,740-42,468 5, ,308 9/5-38, , , ,093 2, ,218-2,077-11,740-42,468 2, ,597 9/6-38, , , ,093 1, ,269-2,077-11,740-42,468 7, ,599 9/7-38, , , ,093 2, ,874-2,077-11,740-42,468 4, ,682 9/8-38, , , , ,424-2,077-11,740-42,468 5, ,346 9/9-38, , , , ,859-2,077-11,740-42,468 4, ,314 9/10-38, , , ,093 25, ,859-2,077-11,740-42,468 4, ,959 9/11-38, , , ,093 45, ,859-2,077-11,740-42,468 7, ,092 9/12-38, , , ,093 30, ,859-2,077-11,740-42,468 3, ,542 9/13-38, , , ,093 2, ,410-2,077-11,740-42,468 2, ,439 9/14-38, , , ,093 8, ,430-2,077-11,740-42,468 3, ,555 9/15-38, , , ,093 4, ,579-2,077-11,740-42,468 2, ,035 9/16-38, , , , ,761-2,077-11,740-42,468 1, ,251 9/17-38, , , , ,407-2,077-11,740-42,468 1, ,396 9/18-38, , , ,093 1, ,453-2,077-11,740-42,468 1, ,097 9/19-38, , , ,093 1, ,493-2,077-11,740-42,468 1, ,137 9/20-38, , , ,093 1, ,654-2,077-11,740-42,468 1, ,337 9/21-38, , , ,093 71, ,654-2,077-11,740-42,468 10, ,337 Totals 38, , , , ,654 2,077 11,740 42, ,337 Note: A post-weir estimate of escapement was made for Karluk (9/21), Upper Station (9/21), and Pasagshak (8/16).

31 Table 5. Fish weir installation and removal dates and salmon escapements for the major systems with fish weirs in the Kodiak Management Area, Dates Species a Weir locations Installed Removed Sockeye Chinook Pink Coho Chum Totals Afognak River 5/5 8/17 38, , ,508 Ayakulik River 5/23 8/25 326,435 2,392 66,451 1, ,238 Dog Salmon Creek 5/27 8/8 191, , , ,690 Frazer Lake fish pass b 5/24 8/13 219, , ,024 Karluk River 5/24 9/21 629,654 2, ,143 7, ,280 Pasagshak River 6/18 8/16 2, ,092 Pauls Lake 6/1 8/10 11, , Saltery River 6/12 8/6 42, , ,254 Upper Station 5/14 9/20 177, ,005 3, ,913 Totals 1,426,048 5, ,598 14,221 3,060 2,112,177 a Counts include post weir estimates after weirs were removed. b Salmon counted at the Frazer fish pass initially pass through the Dog Salmon weir. Typically there are a varying number of fish that pass Dog Salmon weir but fail to get counted at the Frazer fish pass. Sockeye salmon that fail to get counted at Frazer fish pass may not spawn, and therefore the Frazer fish pass count is considered the best escapement estimate for sockeye salmon. Totals for sockeye salmon include Frazer, and exclude Dog Salmon. Totals for Chinook, pink, coho, and chum salmon include Dog Salmon, and exclude Frazer.

32 Table 6. Estimated age composition of sockeye salmon escapements by system, Kodiak Management Area, System Sample Age size Other Total Afognak Lake (Litnik) 585 Percent Numbers 1, , ,474 1, , ,151 Ayakulik River Early run 1,140 Percent Numbers 1,037 1,534 23,822 5, ,527 36, , ,178 Late run 565 Percent Numbers 3, ,897 3,456 31,306 49, , ,257 Frazer 1,699 Percent Numbers ,411 53,814 3, ,544 1,908 72,720 6, ,460 Karluk Lake Early run 1,610 Percent Numbers ,672 22,921 15, , , , , Late run 900 Percent Numbers ,215 38,656 12, ,358 2,460 16,425 32,041 2, ,896 Pasagshak River 305 Percent Numbers ,077 Pauls Lake 527 Percent Numbers ,613 2,237 2,186 1, ,740 Saltery Lake 587 Percent Numbers , ,283 7, , ,468 Upper Station Early run 829 Percent Numbers 1, ,936 1,380 41, , ,473 Late run 820 Percent Numbers 1,927 1,063 12,189 7,083 1,960 99, , , ,864 Totals 9,567 Percent Numbers 11,070 4, , , , ,746 5, ,360 40,194 4,248 2,837 1,464,322

33 Table 7. Estimated age composition of Afognak Lake (Litnik) sockeye salmon escapement by week, Statistical Sample Age week size Total 20 0 Percent /10 5/16 Numbers Percent /17 5/23 Numbers Percent /24 5/30 Numbers , , Percent /31 6/06 Numbers , , Percent /07 6/13 Numbers 42 4,239 5, ,243 11, Percent /14 6/20 Numbers , , Percent /21 6/27 Numbers , Percent /28 7/04 Numbers 609 2,468 2, , Percent /05 7/11 Numbers , Percent /12 7/18 Numbers , , Percent /19 7/25 Numbers Percent /26 8/22 Numbers ,376 Total 585 Percent Numbers 1,089 11,464 17, ,764 5,839 38,151 25

34 Table 8. Length composition of Afognak Lake (Litnik) sockeye salmon escapement samples by age and sex, Age Total Females Mean length (mm) SE Range Sample size Males Mean length (mm) SE Range Sample size All fish Mean length (mm) SE Range Sample size

35 Table 9. Estimated sex composition of Afognak Lake (Litnik) sockeye salmon escapement by week, Escapement Sample size Percent Number Week Dates Females Males Total Females Males Females Males Total /10 5/ /17 5/ /24 5/ ,501 2,268 4, /31 6/ ,417 1,343 2, /07 6/ ,405 5,137 11, /14 6/ ,287 1,211 2, /21 6/ , /28 7/ ,380 3,381 6, /05 7/ ,044 1,254 2, /12 7/ ,228 1,485 2, /19 7/ /26 8/ /02 8/ , /09 8/ /16 8/ Total ,898 18,253 38,151

36 Table 10. Estimated age composition of Ayakulik River (Red Lake) early-run sockeye salmon escapement by week, Statistical Sample Age week size Total 21 0 Percent /17 5/23 Numbers Percent /24 5/30 Numbers , , Percent /31 6/6 Numbers ,530 20, ,932 1,068 30, Percent /7 6/13 Numbers ,238 28,407 1,684 8,597 2,493 48, Percent /14 6/20 Numbers ,495 18,566 1,241 5,408 1,798 30, Percent /21 6/27 Numbers ,471 27,890 1,689 5,363 1,931 40, Percent /28 7/4 Numbers ,141 9, , , Percent /5 7/11 Numbers ,997 20, ,031 1,906 32, Percent /12 7/18 Numbers ,257 8, , ,665 Total 1,140 Percent Numbers 267 1,534 1,037 23, ,527 5,516 36,722 10, ,178 Note: Ayakulik early-run escapement is summed through 15 July; however, samples from all of week 29 were utilized in the age composition estimates.

37 Table 11. Length composition of Ayakulik River (Red Lake) early-run sockeye salmon escapement samples by age and sex, Age Total Females Mean length (mm) SE Range Sample size Males Mean length (mm) SE Range Sample size All fish Mean length (mm) SE Range Sample size ,133

38 Table 12. Estimated sex composition of Ayakulik River (Red Lake) sockeye salmon escapement by week, Escapement Statistical Sample size Percent Number Week Dates Females Males Total Females Males Females Males Total 21 5/17 5/ /24 5/ ,888 3,533 6, /31 6/ ,456 13,291 30, /07 6/ ,659 21,358 48, /14 6/ ,117 12,694 30, /21 6/ ,788 16,001 40, /28 7/ ,262 5,121 14, /05 7/ ,587 10,758 32, /12 7/ ,395 5,270 14,665 Early-run total , ,152 88, , /12 7/ ,798 1,569 4, /19 7/ ,524 4,824 11, /26 8/ ,716 11,122 23, /02 8/ ,056 8,174 17, /09 8/ ,656 14,656 29, /16 8/ ,816 7,816 15, /23 8/ ,266 3,266 6,532 Late-run total ,830 51, ,257 Note: Ayakulik early-run escapement is summed through 15 July and late-run escapement after 15 July; however, samples from all of week 29 were utilized for both early- and late-run sex composition estimates.

39 Table 13. Estimated age composition of Ayakulik River (Red Lake) late-run sockeye salmon escapement by week, Statistical Sample Age week size Total Percent /12 7/18 Numbers , , Percent /19 7/25 Numbers ,311 4, , , Percent /26 8/1 Numbers 116 1,281 2,272 6,749 1,578 10,520 1, , Percent /2 8/8 Numbers ,013 4, ,371 1, , Percent /9 8/15 Numbers ,206 7, ,656 2, , Percent /16 8/22 Numbers ,710 4, ,816 1, , Percent /23 8/29 Numbers , , ,532 Total 565 Percent Numbers 818 3,736 11,897 31,306 3,456 49,541 7, ,257 Note: Ayakulik late-run escapement is summed after 15 July; however, samples from all of week 29 were utilized in the age composition estimates.

40 Table 14. Length composition of Ayakulik River (Red Lake) late-run sockeye salmon escapement samples by age and sex, Age Total Females Mean length (mm) SE Range Sample size Males Mean length (mm) SE Range Sample size All fish Mean length (mm) SE Range Sample size

41 Table 15. Estimated age composition of Frazer Lake (Dog Salmon Creek) sockeye salmon escapement, Statistical Sample Age Week size Total Percent /24-6/6 Numbers Percent /7-6/13 Numbers , , Percent /14-6/20 Numbers ,902 9, , Percent /21-6/27 Numbers ,620 11,903 7, , Percent /28-7/4 Numbers ,061 8,058 4, , Percent /5-7/11 Numbers ,160 9,560 9, , , Percent /12-7/18 Numbers ,248 7,980 7, , Percent /19-7/25 Numbers ,780 20,983 16, , , Percent /26-8/1 Numbers ,113 11,499 6, , , Percent /2-8/8 Numbers ,404 2,901 1, , Percent /9-8/15 Numbers ,935 1,010 1, ,954 Frazer Lake 1,699 Percent Escapement Numbers ,252 3,015 47,090 94,577 64,436 1,576 6, ,093 Dog Salmon Percent Escapement Numbers ,411 3,379 53, ,544 72,720 1,908 6, ,460 -continued-

42 Table 15. Page 2 of 2. Note: To estimate the Frazer Lake escapement age composition, the relative age composition of jacks (age -1.1, -2.1, and -3.1 fish) collected at Frazer Fish Pass was applied to the total manual count of jacks from the Frazer Fish Pass samples. The relative age composition of all other age classes (large fish) sampled at Frazer Fish Pass was applied to the manual count of large fish. To estimate the Dog Salmon escapement age composition, the relative age composition of jacks (age -1.1, -2.1, and -3.1 fish) collected at Frazer Fish Pass was applied to the total manual count of jacks from the Dog Salmon weir. The relative age composition of all other age classes (large fish) sampled at Frazer Fish Pass was applied to the large fish counts from the Dog Salmon weir. The estimated age composition at Dog Salmon includes 11,647 jacks that were culled at the weir. 34

43 Table 16. Length composition of Frazer Lake sockeye salmon escapement samples by age and sex, Age Total Females Mean length (mm) SE Range Sample size Males Mean length (mm) SE Range Sample size All fish Mean length (mm) SE Range Sample size ,342

44 Table 17. Estimated sex composition of Frazer Lake sockeye salmon escapement by week, Escapement Statistical Adult Sample size Percent Number week Dates Females Males Total Females Males Jacks Females Males Jacks Total /24 6/ /07 6/ ,181 1, , /14 6/ ,768 8, , /21 6/ ,240 5,590 1,693 21, /28 7/ ,085 3,278 3,080 16, /05 7/ ,541 5,678 4,249 24, /12 7/ ,815 5,480 4,306 20, /19 7/ ,195 9,587 13,390 55, /26 8/ ,195 4,616 8,703 28, /02 8/ ,635 1,298 8,815 13, /09 8/ , ,935 5, Total , ,449 45,686 48, ,093 Note: The term Jack refers to ocean-age 1 (age-1.1, -2.1, and -3.1) males.

45 Table 18. Estimated age composition of Karluk Lake early-run sockeye salmon escapement by week, Statistical Sample Age week size Total Percent /24 5/30 Numbers , , Percent /31 6/06 Numbers 12 3, ,792 36,144 2, , Percent /07 6/13 Numbers 279 3,545 2,564 4,625 47,837 4, , Percent /14 6/20 Numbers 33 2,116 1,172 3,203 27,436 2, , Percent /21 6/27 Numbers ,594 8,945 1, , Percent /28 7/04 Numbers 257 1,315 3,412 3,299 17,307 2, , Percent /05 7/11 Numbers ,475 1,196 8,741 1, , Percent /12 7/18 Numbers 19 2,654 4,323 3,591 25,278 3, , Percent /19 7/25 Numbers , , ,642 Total 1,610 Percent Numbers ,672 15,647 22, ,119 18, , ,758 Note: Karluk early-run escapement is summed through 21 July; however, samples from all of week 30 were utilized in the age composition estimates.

46 Table 19. Length composition of Karluk Lake early-run sockeye salmon escapement samples by age and sex, Age Total Females Mean length (mm) SE Range Sample size Males Mean length (mm) SE Range Sample size All Fish Mean length (mm) SE Range Sample size , ,471

47 Table 20. Estimated sex composition of Karluk Lake sockeye salmon escapement by week, Escapement Statistical Sample size Percent Number week Dates Females Males Total Females Males Females Males Total 22 5/24 5/ ,510 5,747 8, /31 6/ ,260 28,378 46, /07 6/ ,034 33,565 63, /14 6/ ,870 18,727 36, /21 6/ ,582 7,864 14, /28 7/ ,542 15,103 28, /05 7/ ,626 6,755 14, /12 7/ ,657 16,896 39, /19 7/ ,311 3,331 8,642 Early-run total , , , , /19 7/ ,449 5,298 13, /26 8/ ,551 5,888 14, /02 8/ ,805 6,645 14, /09 8/ ,657 13,846 26, /16 8/ ,436 19,257 39, /23 8/ ,172 15,056 30, /30 9/ ,771 15,629 35, /06 9/ ,950 44, , /13 9/ ,116 7,518 17, /20 9/ ,408 21,753 51,161 Late-run total , , , ,896 Note: Karluk early-run escapement is summed through 21 July and late-run escapement after 21 July; however, samples from all of week 30 were utilized for both early- and laterun sex composition estimates.

48 Table 21. Estimated age composition of Karluk Lake late-run sockeye salmon escapement by week, Statistical Sample Age week size Total Percent /19 7/25 Numbers 0 1,027 1, ,978 1, , Percent /26 8/01 Numbers ,639 1,138 8,644 1, , Percent /02 8/08 Numbers , , , Percent /09 8/15 Numbers 0 1,284 1,776 2,345 18,652 1, , , Percent /16 8/22 Numbers 0 1,767 1,425 3,140 27,550 1, , , Percent /23 8/29 Numbers 0 1, ,518 19,866 2, , , Percent /30 9/05 Numbers 0 1, ,169 20,337 2, , , Percent /06 9/12 Numbers 0 2,188 1,094 14,666 67,649 4, ,094 12,367 1, , Percent /13 9/19 Numbers ,293 12, , , Percent /20 9/26 Numbers ,209 55,260 2, , ,161 Total 900 Percent Numbers 0 10,255 12,960 41, ,444 17, ,479 33,857 2, ,896 Note: Some samples were collected using a beach seine in Karluk Lagoon in late August and September. Karluk late-run escapement is summed after 21 July; however, samples from all of week 30 were utilized in the age composition estimates.

49 Table 22. Length composition of Karluk Lake late-run sockeye salmon escapement samples by age and sex, Age Total Females Mean length (mm) SE Range Sample size Males Mean length (mm) SE Range Sample size All fish Mean length (mm) SE Range Sample size

50 Table 23. Estimated age composition of Pasagshak River sockeye salmon escapement by week, Statistical Sample Age week size Total 25 0 Percent /14 6/20 Numbers Percent /21 6/27 Numbers Percent /28 7/04 Numbers Percent /05 7/11 Numbers Percent /12 7/18 Numbers Percent /19 7/25 Numbers Percent /26 8/01 Numbers Percent /02 8/08 Numbers Percent /09 8/15 Numbers Percent /16 8/22 Numbers Total 305 Percent Numbers ,077

51 Table 24. Length composition of Pasagshak River sockeye salmon escapement samples by age and sex, Age Total Females Mean length (mm) SE Range Sample size Males Mean length (mm) SE Range Sample size All fish Mean length (mm) SE Range Sample size

52 Table 25. Estimated sex composition of Pasagshak River sockeye salmon escapement by week, Escapement Statistical Sample size Percent Number week Dates Females Males Total Females Males Females Males Total 25 6/14 6/ /21 6/ /28 7/ /05 7/ /12 7/ /19 7/ /26 8/ /02 8/ /09 8/ /16 8/ Total , ,077

53 Table 26. Estimated age composition of Pauls Lake sockeye salmon escapement by week, 2015 Statistical Sample Age week size Total 23 0 Percent /31 6/6 Numbers Percent /07 6/13 Numbers , Percent /14 6/20 Numbers , Percent /21 6/27 Numbers Percent /28 7/04 Numbers , Percent /05 7/11 Numbers , Percent /12 7/18 Numbers , Percent /19 7/25 Numbers Percent /26 8/01 Numbers Percent /02 8/08 Numbers Percent /09 8/15 Numbers Total 527 Percent Numbers ,613 2,186 2,237 1, ,740

54 Table 27. Length composition of Pauls Lake sockeye salmon escapement samples by age and sex, Age Total Females Mean length (mm) SE Range Sample size Males Mean length (mm) SE Range Sample size All fish Mean length (mm) SE Range Sample size

55 Table 28. Estimated sex composition of Pauls Lake sockeye salmon escapement by week, Escapement Statistical Sample size Percent Number week Dates Females Males Total Females Males Females Males Total 23 5/31 6/ /07 6/ ,221 1, /14 6/ , /21 6/ /28 7/ ,288 2, /05 7/ ,101 1, /12 7/ , /19 7/ /26 8/ /02 8/ /09 8/ Total ,578 7,162 11,740

56 Table 29. Estimated age composition of Saltery Lake sockeye salmon escapement by week, Statistical Sample Age week size Total 24 0 Percent /7 6/13 Numbers Percent /14 6/20 Numbers Percent /21 6/27 Numbers , Percent /28 7/04 Numbers , Percent /05 7/11 Numbers , , , Percent /12 7/18 Numbers ,733 1, ,426 2,212 8, Percent /19 7/25 Numbers 0 2 2,668 2, ,124 3,884 10, Percent /26 8/01 Numbers 0 0 2,341 1, ,371 3,932 8, Percent /02 8/08 Numbers 0 0 1,199 1, ,797 7,195 Total 587 Percent Numbers ,085 7, ,408 14,850 42,468

57 Table 30. Length composition of Saltery Lake sockeye salmon escapement samples by age and sex, Age Total Females Mean length (mm) SE Range Sample size Males Mean length (mm) SE Range Sample size All fish Mean length (mm) SE Range Sample size

58 Table 31. Estimated sex composition of Saltery Lake sockeye salmon escapement by week, Escapement Statistical Sample size Percent Number week Dates Females Males Total Females Males Females Males Total 24 6/07 6/ /14 6/ /21 6/ , /28 7/ , /05 7/ ,154 2,296 5, /12 7/ ,866 4,134 8, /19 7/ ,681 5,321 10, /26 8/ ,388 4,563 8, /02 8/ ,777 3,418 7,195 Total ,504 20,964 42,468 50

59 Table 32. Estimated age composition of Upper Station (South Olga Lakes) early-run sockeye salmon escapement by week, Statistical Sample Age week size Total Percent /17 5/23 Numbers Percent /24 5/30 Numbers , , Percent /31 6/06 Numbers , , Percent /07 6/13 Numbers ,199 12, , Percent /14 6/20 Numbers ,679 9, , Percent /21 6/27 Numbers ,488 5, , Percent /28 7/04 Numbers , , Percent /05 7/11 Numbers , , Percent /12 7/18 Numbers , ,592 Total 829 Percent Numbers 1, ,380 6,936 41,281 2, ,473 Note: Upper Station early-run escapement is summed through 15 July; however, samples from all of week 29 were utilized in the age composition estimates.

60 Table 33. Length composition of Upper Station (South Olga Lakes) early-run sockeye salmon escapement samples by week, Age Total Females Mean length (mm) SE Range Sample size Males Mean length (mm) SE Range Sample size All fish Mean length (mm) SE Range Sample size

61 Table 34. Estimated sex composition of Upper Station (South Olga Lakes) sockeye salmon escapement by week, Escapement Statistical Sample size Percent Number week Dates Females Males Total Females Males Females Males Total 21 5/17 5/ /24 5/ , /31 6/ ,395 4,079 7, /07 6/ ,441 7,694 15, /14 6/ ,917 7,059 12, /21 6/ ,712 4,639 8, /28 7/ ,613 1,762 3, /05 7/ ,323 1,664 2, /12 7/ ,056 1,536 2,592 Early-run total ,214 29,259 54, /12 7/ /19 7/ ,032 1,163 2, /26 8/ /02 8/ /09 8/ ,147 2,946 6, /16 8/ ,286 8,599 17, /23 8/ ,211 7,045 16, /30 9/ ,125 12,183 26, /06 9/ ,525 15,420 36, /13 9/ ,795 4,800 13, /20 9/ ,280 3,920 11,200 Late-run total ,378 57, ,864 Note: Upper Station early-run escapement is summed through 15 July and late-run escapement after 15 July; however, samples from all of week 29 were utilized for both earlyand late-run sex composition estimates.

62 Table 35. Estimated age composition of Upper Station (South Olga Lakes) late-run sockeye salmon escapement by week, Statistical Sample Age week size Total Percent /12 7/18 Numbers Percent /19 7/25 Numbers , , Percent /26 8/01 Numbers Percent /02 8/08 Numbers Percent /09 8/15 Numbers , , , Percent /16 8/22 Numbers , ,161 11, , Percent /23 8/29 Numbers , ,252 10, , Percent /30 9/05 Numbers , ,384 19,577 2, , Percent /06 9/12 Numbers , ,534 29,928 2, , Percent /13 9/19 Numbers , , Percent /20 9/26 Numbers , ,200 Total 820 Percent Numbers 579 1,266 1,063 1,927 12,189 1,960 7,083 99,625 6, ,864 Note: Upper Station late-run escapement is summed after 15 July; however, samples from all of week 29 were utilized in the age composition estimates.

63 Table 36. Length composition of Upper Station (South Olga Lakes) late-run sockeye salmon escapement samples by age and sex, Age Total Females Mean length (mm) SE Range Sample size Males Mean length (mm) SE Range Sample size All fish Mean length (mm) SE Range Sample size

64 56 Table 37. Kodiak sockeye salmon age-2.2 escapement average length by year and system, 1985 to System Year Afognak Ayakulik early Ayakulik late Frazer Karluk early Karluk late Pasagshak Pauls Saltery Upper Stn early Upper Stn late Avg Note: Lengths are measured in mm from mid eye to tail fork (METF).

65 57 Table 38. Kodiak sockeye salmon age-2.3 escapement average length by year and system, 1985 to System Year Afognak Ayakulik early Ayakulik late Frazer Karluk early Karluk late Pasagshak Pauls Saltery Upper Stn early Upper Stn late Avg Note: Lengths are measured in mm from mid eye to tail fork (METF).

66 Table 39. Estimated age composition of commercial sockeye salmon catches by sample area, Kodiak Management Area, District Sample Age Catch area size Other a Total NW Kodiak District Uganik-Viekoda-Kupreanof 2,504 Percent Numbers 15,107 57,252 2, , ,156 44,573 3, ,108 Uyak Bay 2,559 Percent Numbers 14,223 47,058 2, , ,673 52,567 7, , ,255 SW Kodiak District Karluk b -Sturgeon 2,585 Percent Numbers 1,554 36,395 9,011 47, ,447 21,798 4, , , Ayakulik-Halibut Bay 2,111 Percent Numbers 12,739 64,099 4, , ,044 83,410 1, , ,133 Alitak Bay District Moser-Olga-Alitak 1,385 Percent (gillnet) Numbers 917 3, ,888 27,932 49,824 2, ,075 Alitak Bay 1,934 Percent (seine) Numbers 9,702 17,160 2,013 97,588 38,798 59,634 2, , ,719 a b Total 13,078 Percent Number 54, ,360 21, , , ,806 22,415 2,283 8,750 2,251,917 The Other age class listed in the table above consists of age-0.2, -1.1, -0.4, -3.1, Includes Kodiak Salmon Test Fishery catch.

67 Table 40. Estimated age composition of Uganik-Viekoda-Kupreanof (253-11, 12, 13, 14, 31, 32, 33, 34, 35) commercial sockeye salmon catch by week, Statistical Sample Age week size Total Percent /31 6/6 Numbers ,273 2, , Percent /7 6/13 Numbers , , Percent /14 6/20 Numbers ,493 5, ,674 1, , Percent /21 6/27 Numbers , , Percent /28 7/4 Numbers ,182 3, , , Percent /5 7/11 Numbers ,918 5, ,850 1, , Percent /12 7/18 Numbers 0 1,346 10,242 21, ,749 3, , Percent /19 7/25 Numbers 121 8,445 16,355 63, ,823 11, , Percent /26 8/1 Numbers 212 1,410 6,310 22, ,281 5, , Percent /2 8/8 Numbers 6 1,222 6,256 27, ,001 6, , Percent /9 8/15 Numbers ,640 28, ,262 5, , Percent /16 8/22 Numbers ,990 13, ,790 2, , Percent /23 8/29 Numbers , , ,927 -continued-

68 Table 40. Page 2 of 2. Statistical Sample Age week size Total 36 0 Percent /30 9/5 Numbers , , , Percent /6 9/12 Numbers 0 0 1,305 4, ,402 48,934 1,467 1, , Percent /13 9/19 Numbers , ,452 Total 2,504 Percent Numbers ,107 57, , , ,156 44,573 3, ,108 60

69 Table 41. Estimated age composition of Uyak Bay (254-10, 20, 21, 30, 31, 40, 41) commercial sockeye salmon catch by week, Statistical Sample Age week size Total Percent /31 6/6 Numbers , , , Percent /7 6/13 Numbers ,597 7, ,970 1, , Percent /14 6/20 Numbers ,563 6, ,615 1, , Percent /21 6/27 Numbers ,152 3, , , Percent /28 7/4 Numbers ,594 4, ,520 1, , Percent /5 7/11 Numbers ,663 5, , , Percent /12 7/18 Numbers 32 2, ,114 23, ,480 7, , Percent /19 7/25 Numbers 150 3, ,476 36, ,347 10, , Percent /26 8/1 Numbers 178 2, ,811 27, ,974 7, , Percent /2 8/8 Numbers 129 1, ,825 17, ,180 4, , Percent /9 8/15 Numbers 8 1, ,755 17, ,094 4, , Percent /16 8/22 Numbers ,028 7, ,085 4, , Percent /23 8/29 Numbers ,236 3, , ,874 -continued-

70 Table 41. Page 2 of 2. Statistical Sample Age week size Total 36 0 Percent /30 9/5 Numbers ,576 1, ,107 1, , , Percent /6 9/12 Numbers ,167 1, ,088 3, , , Percent /13 9/19 Numbers ,358 1, , ,085 Total 2,559 Percent Numbers , , , , ,673 52, , ,255 62

71 Table 42. Estimated age composition of Inner and Outer Karluk Sections ( and ) and Sturgeon Section (256-40) commercial sockeye salmon catch, Statisical Sample Age week size Total Percent /24 5/30 Numbers , , Percent /14 6/20 Numbers ,688 2, ,822 9, , Percent /21 6/27 Numbers , ,197 2, , Percent /28 7/4 Numbers , ,868 1, , Percent /5 7/11 Numbers , ,286 1, , Percent /12 7/18 Numbers , , Percent /19 7/25 Numbers , , , Percent /26 8/1 Numbers , ,477 1, , Percent /2 8/8 Numbers ,502 2, ,367 1, , Percent /9 8/15 Numbers ,794 2, , , Percent /16 8/22 Numbers ,285 2, ,566 1, , Percent /23 10/3 Numbers ,392 16, , ,009 11, , ,722 Total 2,585 Percent Numbers 1,042 1,554 1,085 36,395 47, , ,447 21, , ,627 Note: Karluk catch includes test fishery harvest.

72 Table 43. Estimated age composition of Inner and Outer Ayakulik and Halibut Bay sections (256-10, 15, 20, 25, 30) commercial sockeye salmon catch, Statistical Sample Age week size Total Percent /14 6/20 Numbers 148 1,877 14,498 65, ,054 31,021 16, , Percent /21 6/27 Numbers ,749 23, ,330 16,138 5, , Percent /28 7/4 Numbers ,310 10, ,692 1, , Percent /5 7/11 Numbers 344 1,762 6,052 39, ,445 7, , Percent /12 7/18 Numbers 67 6,272 19, , ,547 37, , Percent /19 7/25 Numbers ,699 12, ,752 4, , Percent /26 8/1 Numbers ,773 30, ,219 7, , Percent /2 8/8 Numbers , Percent /9 8/15 Numbers ,269 1, , , Percent /16 8/22 Numbers ,390 2, , , Percent /23 8/29 Numbers , , Percent /30 9/5 Numbers , , Percent /6 9/12 Numbers Total 2,111 Percent Numbers 1,438 12,739 64, , , ,044 83,410 1, ,133

73 Table 44. Estimated age composition of Olga Bay, Alitak Bay, and Moser Bay sections (excludes Dog Salmon Flats Section; , 41, and 43) commercial sockeye salmon catch, Statistical Sample Age week size Total Percent /21 6/27 Numbers , ,359 3, , Percent /28 7/4 Numbers , ,878 2, , Percent /5 7/11 Numbers , ,702 3, , Percent /12 7/18 Numbers ,015 8, ,272 9, , Percent /19 7/25 Numbers , ,251 12, , Percent /26 8/1 Numbers , ,694 11, , Percent /2 8/8 Numbers , ,433 6, , Percent /9 8/15 Numbers ,278 Total 1,385 Percent Numbers ,395 26, ,932 49, , ,075

74 Table 45. Estimated age composition of Cape Alitak and Humpy-Deadman sections (257-10, 20, 50, 60, 70) commercial sockeye salmon catch, Statistical Sample Age week size Total 26 0 Percent /21 6/27 Numbers ,458 2, ,712 3, , Percent /28 7/4 Numbers ,484 3, ,784 3, , Percent /5 7/11 Numbers 133 1, ,027 13, ,829 8, , Percent /12 7/18 Numbers 20 5, ,077 49, ,137 22, , Percent /19 7/25 Numbers 23 1, , ,896 6, , Percent /26 8/1 Numbers ,596 7, ,724 8, , , Percent /2 8/8 Numbers ,541 2, ,974 3, , Percent /9 8/15 Numbers ,606 1, ,041 1, , Percent /16 8/22 Numbers ,565 1, , , Percent /23 8/29 Numbers , , , Percent /30 9/5 Numbers , ,548 Total 1,934 Percent Numbers 635 9, ,160 97, ,013 38,798 59, , ,719

75 Table 46. Ayakulik River (Red Lake) sockeye salmon estimated catch by area, escapement, and estimated total run by age class, Sample Age Area size Total Estimated Ayakulik catch by area Ayakulik-Halibut Bay Sections ( ) through 15 July 1,402 Percent Numbers 500 7, , , ,634 80,071 47, ,232 Ayakulik-Halibut Bay Sections ( ) post 15 July 879 Percent Numbers 579 2, ,002 48, ,583 14, ,118 Karluk-Sturgeon Sections (255-10, , ) through 15 July 1,539 Percent Numbers ,278 4, ,015 4,365 1, ,551 Karluk-Sturgeon Sections (255-10, , )16 July-29 August 1,046 Percent Numbers ,261 3, ,353 1, , Total catch 4,866 Percent Numbers 1,154 9, , , , ,373 65, , ,289 Estimated Ayakulik escapement Ayakulik escapement through 7/15 1,140 Percent Numbers 267 1,534 1,037 23, , ,516 36,722 10, ,178 Ayakulik escapement post 7/ Percent Numbers ,736 11,897 31, ,456 49,541 7, ,257 Total escapement 1,705 Percent Numbers 267 2,353 4,773 35, , ,972 86,264 17, ,435 Total run 6,571 Percent Numbers 1,421 12,313 4,859 87, , , ,636 83, , ,724 Note: In 2015, 75% of the Ayakulik and Halibut Bay sections harvest through was attributed to Ayakulik based on age composition of the samples. Additionally, 25% of the Karluk and Sturgeon sections harvest through 29 August was attributed to Ayakulik based on age composition of the samples.

76 68 Table 47. Ayakulik River (Red Lake) sockeye salmon brood table showing estimated returns from parent escapements by age class. Brood Age Total Return/ year Escap return spawner , ,835 3, ,330 8, , , , , , ,060 3, , , ,541 3, , , ,556 15, ,937 45, ,151 2, , , , ,345 18, , , ,815 1, , , ,780 13, ,761 24, , , ,440 2, ,152, , , ,784 7, , , ,527 28, ,091, , ,857 7,500 1,626 2, , , ,129 4, , , ,171 20,198 15, , , , , , ,779 3, ,185 78, , , ,450 3, , , ,345 3, ,489 18, , , ,750 4, ,786, , ,480 38, ,371 6, , , ,471 5, ,730, , ,991 15, ,341 13, , , ,728 32, , ,015, , ,822 3,351 81,584 2, , , ,783 10, , , , ,571 5,565 26,297 29, , , ,557 59, , , , ,028 8,047 3,618 14, , , ,600 16, , , ,371 17, ,925 36, , , ,923 5, , ,265, , ,591 2,578 9,900 65,889 24, , ,817 2,188 2, ,460 19,788 1,983 6, , , ,093 3,678 2,504 16, , , , ,504 7, , , , ,711 7, ,246 35,908 17, , , ,628 7, , ,454, , ,711 4, ,292 18, , ,822 3, ,294 22,068 1,125 6, , , ,770 17,050 16,902 8, , , , , , ,250 4,810 14,447 5, ,767 34, , , , , , ,683 2, ,657 97,574 1, ,305 10, , , , ,953 4,818 53,015 8, , , ,066 4, , , , ,261 7,074 56,453 5, , , , , , , ,217 4, ,812 57, ,615 2, , , ,352 4, , , ,386 67, , , ,224 1,086 47,900 5, ,986 88, ,068 2, , , , ,445 3,358 24,944 5, , , ,630 3, , , , ,530 13, , ,808 1, ,847 2, , , , ,179 16, , , ,897 4, , , ,958 1, ,723 35, , , ,052 1, , , , ,934 11, , , ,279 1, , , ,668 5,863 74,430 21, , , ,088 1, , ,918 1, ,596 20, , , , ,904 12,313 87,310 13, , ,421 4, , , , year average ( ): 370,

77 Table 48. Frazer Lake (Dog Salmon Creek) sockeye salmon estimated catch by area, escapement, and estimated total run by age class, Sample Age Area size Total Estimated Frazer catch by area Olga, Moser, and Alitak Bay gillnet sections (257-40, -43, -41, -42) 1,565 Percent Numbers ,655 6, ,285 49, , ,556 Cape Alitak and Humpy-Deadman sections (257-10, -20, -50, -60, -70) 2,113 Percent Numbers ,141 12,954 1,591 26,525 51, , ,540 Total catch 3,678 Percent Numbers ,796 19,937 2,075 53, , , , Dog Salmon creek escapement 1,699 Percent Numbers ,411 3,379 53, ,544 72,720 1,908 6, ,460 Total run 5,377 Percent Numbers ,207 23,316 55, , ,311 2,047 12, ,556

78 Table 49. Frazer Lake (Dog Salmon Creek) sockeye salmon brood table showing estimated returns from parent escapements by age class. 70 Brood Age Total Return/ year Escap yo return spawner , , ,444 8, , , , , , , ,189 2, , , , , , , , ,148 22, , , , , ,965 24, , , , , ,064 16, , , , , , , ,455 7, , , , , , ,624 3, ,870 10, , , ,935 9, , ,531 1, , , ,038, , , ,771 33, , , ,142 2, , , ,502 4, ,290 53, ,578 9, , , , ,529 1,393 67, ,658 40, , , ,815 9, , ,227, , ,787 1,851 3,019 26, , , , , , , ,073 7, , , ,565 20, , , , , ,929 12, , ,277 5, , , , ,375, , , ,217 12, , ,750 1, ,744 15, , , , ,031 57, , , , , , , ,513 78, , ,959 4, ,148 18, , , , , ,677 41, , ,218 4, ,155 17, , , , , ,034 17, , ,849 1, ,546 15, , , , , ,574 39, , ,287 1, ,356 11, , , , , ,983 22, ,667 32, ,670 54, , , ,327 1, ,462 15, ,673 2, , , ,450 18, , ,297 12, ,315 89, , , , , , , ,961 1, , , , , ,457 10, , , , , , ,563 2, ,110 5,096 8, ,177 38, ,473 1, , , , ,801 5, ,216 34,309 8, ,275 35, , , , , ,899 44, , ,365 3, ,123 31, , , , , ,145 19, , , , , , , ,034 8, ,136 36,815 5, ,735 3, , , ,723 40, , ,026 7, ,935 5, , , continued-

79 Table 49. Page 2 of 2. Brood Age Total Return/ year Escap yo return spawner , , ,301 67, , , , , , , ,645 10, , , , , , ,784 17, , , ,311 12, , , ,154 26, , ,354 2, , ,207 55, , , , , Year average ( ): 376, Note: The Frazer brood table was updated in the fall of Details can be found in the Methods section of the text under the Sockeye Salmon Run Reconstruction Estimates for Frazer Lake (Dog Salmon Creek). 71

80 Table 50. Karluk Lake early-run sockeye salmon estimated catch by area, escapement, and estimated total run by age class, Sample Age Area size Total Estimated Karluk early-run catch by Area Uyak Bay ( ) 1,457 Percent Numbers 38 1,027 1,026 1,247 12,070 1, ,816 Uganik-Viekoda-Kupreanof ( ) 1,436 Percent Numbers , ,622 Karluk-Sturgeon (255-10, , ) 1,539 Percent Numbers ,061 11,169 1, , Ayakulik-Halibut Bay ( ) 1,402 Percent Numbers 0 5,155 5, ,564 6, ,683 Total catch 5,834 Percent Numbers 239 7,904 7,892 5,308 92,864 9, , ,983 Karluk early-run escapement 1,610 Percent Numbers ,672 15,647 22, ,119 18, , ,758 Total run 7,444 Percent Numbers ,576 23,538 28, ,983 27, ,242 2,048 1, ,741 Note: Karluk catch includes test fishery harvest.

81 73 Table 51. Karluk Lake early-run sockeye salmon brood table showing estimated returns from parent escapements by age class. Brood Age Total return/ year Escap yo 9yo return spawner , , , , , ,484 45, , , , ,760 4, ,899 60, , , ,558 18, , ,831 1, ,158 38, , , , ,650 5, , ,293 4, ,560 37, , , , ,159 7, , ,947 1, ,829 33, , , , ,090 8, ,830 97, ,258 30, , , , ,258 2, ,969 72,857 3, ,599 57, ,955 40, , , ,152 2, ,443 87,691 4, , , ,223 1, , , , , , ,504 19, , , ,244 2,309 2, , , ,383 6, ,708 84,322 13, , , , , , , , ,492 7, , ,564 5, , , ,709 5,362 1, , , ,149 2, ,649 79,156 6, ,751 97, , , , ,224 1,062 26,661 12, , ,422 7, ,809 81, ,113 2, , , , ,627 9, ,159 52,730 14, ,891 58, , , , , ,309 18, , ,377 2, ,158 35, ,752 42, , , , ,956 7, , ,780 1, ,133 54, ,887 1,781 1, , , ,268 13, , ,809 3, ,934 83, ,405 52, , , ,063 5, , ,847 2, ,129 84, , , , , ,838 3,930 11, , ,964 3, ,879 63, , , , ,258 19, , ,206 4, , , , , , ,382 28, , ,204 10, ,314 80, , , , ,611 4, , ,141 6, ,252 78, , , , , ,223 6, , ,151 5, ,770 51, ,144 42, , , ,894 11, ,592 69,773 1, ,363 12, , , , ,237 9, ,150 30, ,852 15, , , , ,044 4, ,120 32, , , , ,029 1, ,506 14,088 4, ,754 16, , , ,167 5, ,056 27,614 6, ,395 8, , , , ,832 16, , ,426 1, ,348 9, , , , ,219 10, , ,375 2, ,950 9, , , , ,084 22, , , ,530 2, , , ,315 41, , ,983 1, , , ,576 28, , , , , year average ( ): 321,

82 Table 52. Karluk Lake late-run sockeye salmon estimated catch by area, escapement, and estimated total run by age class, Sample Age Area size Total Estimated Karluk late-run catch by area Uyak Bay ( ) 1,284 Percent Numbers 160 4,776 5, ,234 6, , ,611 Uganik-Viekoda-Kupreanof ( ) 1,253 Percent Numbers 0 2,462 7,807 2,392 86,907 2, , ,704 Inner and Outer Karluk ( ) 1,046 Percent Numbers ,618 17,232 3, ,362 24, ,888 2, , Ayakulik-Halibut Bay ( ) 709 Percent Numbers , ,320 Total catch 4,292 Percent Numbers ,425 31,188 6, ,757 34, ,095 3, ,761 Karluk late-run escapement 900 Percent Numbers 0 10,275 12,970 41, ,320 17, ,489 33,890 2, ,896 Total run 5,192 Percent Numbers ,700 44,158 48, ,076 51, ,578 74,985 5, ,657

83 75 Table 53. Karluk Lake late-run sockeye salmon brood table showing estimated returns from parent escapements by age class. Brood Age Total return/ year Escap yo 9yo return spawner , , , , , , , , , ,053 4, , , ,190 25, , ,158 13, ,872 2, ,293 49, , , , , , ,997 34, , , ,079 4,160 12, ,803 1, ,452 42, ,070 47, , , , , , , , , ,110, , ,084 30, , , , , , ,838, , ,519 39, , ,214 1, , , , , ,783, , , ,067 24,703 1, ,552 2, , , ,451 1, , , , ,424 4,649 1, , ,196 7, , , , , , , ,717 5,909 12, , ,439 6, , , , , , , ,292 16,995 3, , ,371 1, ,479 80, ,392 1, , , , ,879 16,292 3, , ,535 4, ,311 85, , , , ,567 1, ,880 6, ,234 57,188 5, , , , , , ,501 2,860 3,550 17, , ,758 1, ,913 75, , , , ,192 24,718 4, , ,350 1, , , , , , , ,219 48,766 8, , ,857 5, , , , , , , , ,071 2, , , , , , ,473 21, ,043 18, , , , ,053, , ,787 1,399 2, ,141 8, , , , ,204, , ,117 41, , ,399 3, , , , , , ,376 6, , ,303 2, ,380 55, , ,967 1,046 4, ,002, , ,543 5, , ,216 3, , , ,374 38, , , ,790 3,319 12, , , ,086 25, , , , ,750 2,494 1, ,887 41,395 2, , , ,707 10,460 1, , , , ,162 10, , , ,868 2, , , , , , ,543 72, , , , ,734 2, , ,394 11, ,311 73, , , , ,235 3,207 18, , , ,111 64, , , , ,620 6, , , ,642 60, , , , ,742 11, , ,554 6, ,167 74, , , ,359 28, , ,076 2, , , ,700 48, , , , , year average ( ): 550,

84 Table 54. Upper Station (South Olga lakes) early-run sockeye salmon estimated catch by area, escapement, and estimated total run by age class, Sample Age Area size Total Estimated Upper Station early-run catch by area Olga, Moser, and Alitak Bay gillnet sections (257-40, -43, -41, -42) 1,565 Percent Numbers ,007 1, ,404 Cape Alitak and Humpy-Deadman sections (257-10, -20, -50, -60, -70) 2,113 Percent Numbers ,170 3, ,227 Total catch 3,678 Percent Numbers ,177 5, , Upper Station early-run escapement 829 Percent Numbers 1, ,380 6,936 41,281 2, ,473 Total run 4,507 Percent Numbers 1,625 1,376 2,353 7,241 45,458 7, ,104

85 Table 55. Upper Station (South Olga lakes) early-run sockeye salmon brood table showing estimated returns from parent escapements by age class. 77 Brood Age Total Return/ year Escap return spawner , , ,393 14, , , , , ,438 47, , , , , ,850 94, , , , ,809 28, ,354 70, , , , , ,554 65, , , , ,341 11, ,000 7, , , , ,832 1, ,370 85, , , , , , , ,684 37, , , , ,220 1,181 5,491 1, ,396 87, , , , ,443 2, ,792 46, , , , , ,865 2,314 22, ,714 86, , , , , , ,048 83, , , , , ,022 2,027 3, , , , , ,607 35, ,282 1, , , ,823 8,751 6, ,539 67, , , , , ,275 3, ,145 82, , , , ,258 20,467 46,391 6, , , , , , , ,878 5,959 3, ,435 24, , , , ,423 5,189 2, ,812 31, ,168 1, , , ,887 53,607 1, ,176 33, , , , ,467 5,857 33,691 1, ,415 44, , , , ,723 30,487 1, ,164 51, , , , , , , , , , , , , , , , ,894 6, ,497 81, , , , ,912 7, ,434 2, ,315 40, , , , ,131 1,123 3,856 6,472 5, ,335 15, , , , , ,890 2, , , , ,903 3, ,334 34, , , , ,553 6,398 36,836 3, ,750 32, , , , ,884 3, ,904 42, , , , ,815 2, ,513 24, , , , ,578 4, ,112 28, , , , ,317 2, ,744 21, , , , ,346 2,774 2, ,354 30, , , ,784 6, ,353 45, , ,376 7, , ,625 -continued-

86 Table 55. Page 2 of 2. Brood Age Total Return/ year Escap return spawner , , , Year average ( ): 92,

87 Table 56. Upper Station (South Olga lakes) late-run sockeye salmon estimated catch by area, escapement, and estimated total run by age class, Sample Age Area size Total Estimated Upper Station late-run catch by area Olga, Moser, and Alitak Bay gillnet sections (257-40, -43, -41, -42) 1,565 Percent Numbers ,654 1, ,853 11, ,748 Cape Alitak and Humpy-Deadman sections (257-10, -20, -50, -60, -70) 2,113 Percent Numbers , , ,136 4, ,055 Total catch 3, , ,930 2, ,988 16, , Upper Station late-run escapement 820 Percent Numbers 579 1,266 1,063 1,927 12,189 1,960 7,083 99,625 6, ,864 Total run 4,498 Percent Numbers 579 1,699 5,790 1,927 26,119 4,197 7, ,614 23, ,667

88 Table 57. Upper Station (South Olga lakes) late-run sockeye salmon brood table showing estimated returns from parent escapements by age class. 80 Brood Age Total Return/ year Escap return spawner , , ,142 1, ,479 76, , , , , ,479 38,399 2, , , , , , ,137 52,279 1, , , , , , ,601 1,046 90, ,367 4, , , ,755 2, , , , ,256 71, , , , , , , ,178 35,951 2, ,758 55, , , , , , ,249 12,280 1, , , , , , ,017 5, , ,312 5, , , ,168 2, ,675, ,741 4, , ,177 23,242 1, ,195 92, , , , ,608 3,012 37, , ,451 5, , , ,712 4, , ,409 2, ,757 1, ,775 34,924 12, , , ,289 6, ,196, ,922 1,449 72,415 1,953 94, ,815 5, , , ,721 1,579 1, ,056, , , ,821 12, , , ,470 15, , , , ,793 76,583 1, ,330 80, ,037 1, , , ,158 1,125 85,530 83,807 12, , , , , ,287 1,432 56,992 3, ,907 27,747 7, , , , , ,860 6,744 51,810 4, ,283 73,541 6, , , , ,084, ,067 4,913 61,018 1,108 15,733 58,923 12, , , , , ,229 5,186 46,015 5, ,817 35,842 45, , , ,883 5, , ,675 1,417 10,206 6,322 23,167 90,488 17, , , , , , ,020 3,340 3, ,562 24, , , , , , ,972 6,536 1,335 35,606 4, ,478 88, ,856 2, , , , ,842 11, , ,206 1, ,502 17,554 1, , , ,511 13, , ,890 25, , , , , ,315 15, , , ,906 5, , , ,433 5,197 36, ,248 4, , , , , , ,701 5,696 8, ,078 77, , , , ,421 3,965 7,179 94,543 8, ,609 95, , , , , ,307 7, , , , , , ,264 1,535 24,845 99,160 7, , , ,577 1, , , ,828 2,423 3,067 20,933 20, , , ,694 3, , , , ,327 8, , , ,988 6, , , ,235 11, , , , , , , ,340 7, , , , , , ,236 1,527 5,796 8,546 16, , , , continued-

89 Table 57. Page 2 of 2. Brood Age Total Return/ year Escap return spawner , , ,380 3, , , , ,790 26,119 7, , ,699 1, , , , Year average ( ): 281,

90 Table 58. Kodiak Salmon Test Fishery Summary, Tide Catch Set # Date Start time Area Weather Wind Seas Duration status Sockeye Chum Chinook 1 5/27/2015 6:00 AM Cape Uyak Clear V ft 30 minutes flood /27/2015 7:06 AM Cape Uyak Clear V ft 30 minutes flood /27/2015 8:10 AM Cape Uyak Clear V ft 30 minutes flood /27/2015 9:10 AM Cape Uyak Clear V ft 30 minutes flood /27/ :13 AM Cape Uyak Clear V ft 30 minutes flood-high /27/ :15 AM Cape Uyak Clear V ft 30 minutes ebb /27/ :40 PM Cape Uyak Clear V ft 30 minutes ebb /27/2015 2:05 PM Cape Uyak Clear V ft 30 minutes ebb /27/2015 3:43 PM Pafco Point Clear V ft 30 minutes ebb /27/2015 4:50 PM Pafco point Clear V ft 30 minutes low-flood /27/2015 6:15 PM Tarabochia Rocks Clear V ft 30 minutes flood /27/2015 7:25 PM Tarabochia Rocks Clear V ft 30 minutes flood /28/2015 5:50 AM Cape Uyak Clear V ft 30 minutes low-flood /28/2015 6:52 AM Cape Uyak Clear V ft 30 minutes flood /28/2015 8:05 AM Cape Uyak Clear V ft 30 minutes flood /28/2015 9:02 AM Cape Uyak Clear V ft 30 minutes flood /28/ :12 AM Cape Uyak Clear V ft 30 minutes flood /28/ :30 AM Tarabochia Rocks Clear V ft 30 minutes flood-high /28/ :30 PM Tarabochia Rocks Clear V ft 30 minutes ebb /28/2015 1:40 PM Tarabochia Rocks Clear V ft 30 minutes ebb /28/2015 2:46 PM Tarabochia Rocks Clear V ft 30 minutes ebb /28/2015 3:53 PM Tarabochia Rocks Clear V ft 30 minutes ebb /28/2015 4:55 PM Tarabochia Rocks Clear V ft 30 minutes ebb Note: Chinook salmon were immediately released back into the water. Total: 3,

91 Table 59. Estimated age composition of the Kodiak Salmon Test Fishery sockeye salmon catch (statistical area: ), Statistical Sample Age week size Total Percent /24 5/30 Numbers , ,128 Total 726 Percent Numbers , ,128 83

92 Figure 1. Kodiak Management Area commercial salmon fishing districts. 84

93 Figure 2. Salmon escapement, special harvest areas, and processing facility sampling locations in the Kodiak Management Area. 85

94 86 Figure 3. Kodiak Management Area commercial salmon statistical areas sampled to represent Uganik/Viekoda/Kupreanof harvest within the Northwest Kodiak District.

95 Figure 4. Kodiak Management Area commercial salmon statistical areas sampled to represent Uyak Bay harvest within the Northwest Kodiak District. 87

96 Figure 5. Kodiak Management Area commercial salmon statistical areas sampled to represent Moser/Olga gillnet (dotted) and Alitak seine area harvest. 88