Download or read book Chignik River Sockeye Salmon Genetic Stock Identification Sampling Operational Plan 2021 written by Michelle Stratton and published by . This book was released on 2021 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project will continue the Genetic Stock Identification (GSI) project on sockeye salmon escaping through the Chignik weir following protocol established by the Gene Conservation Laboratory (GCL) of the Alaska Department of Fish and Game (ADF&G). Concurrent with ASL sampling, 190 fish at each of 6 strata (1,140 total samples) during the transition period will have the left axillary process collected and sent to Anchorage for analysis for post-season stock apportionment of Chignik River early- and late-run sockeye salmon.
Download or read book Chignik River Sockeye Salmon Genetic Stock Identification Sampling Operational Plan 2020 written by Michelle Stratton and published by . This book was released on 2020 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project will continue the Genetic Stock Identification (GSI) project on sockeye salmon escaping through the Chignik weir following protocol established by the Gene Conservation Laboratory (GCL) of the Alaska Department of Fish and Game (ADF&G). Concurrent with ASL sampling, 190 fish at each of 6 strata (1,140 total samples) during the transition period will have the left axillary process collected and sent to Anchorage for analysis for post-season stock apportionment of Chignik River early- and late-run sockeye salmon.
Download or read book Chignik River Sockeye Salmon Escapement Sampling Operational Plan 2020 2022 written by Michelle Stratton and published by . This book was released on 2020 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the Chignik Management Area (Area L), the Chignik weir is the primary mode of enumeration for sockeye salmon Oncorhynchus nerka into the Chignik River. Annually, the Alaska Department of Fish and Game (ADF&G) samples salmon escapement at the Chignik weir for age, sex, and length (ASL) data. The biological information collected from salmon escapements provide the foundation for preseason run forecasts, escapement goal evaluation, and run reconstruction. Every week throughout the season, 240 sockeye salmon are sampled. Sockeye salmon scales are collected using established protocols common to the Westward Region.
Download or read book Chignik River System Sockeye Salmon Smolt Sampling Project Operational Plan 2020 2022 written by Matthew Olson and published by . This book was released on 2020 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: This operational plan describes the procedures for the sockeye salmon Oncorhynchus nerka smolt sampling project conducted by the Alaska Department of Fish and Game (ADF&G) in the Chignik River system. The project goal is to evaluate and document size and abundance trends of sockeye salmon smolt in the Chignik River system to understand rearing capacity and habitat use. The research is designed to assess age structure, fish body condition, and provide additional context for the adult sockeye salmon forecast. Age structure of the population will be estimated from scales of sockeye salmon smolt collected using a beach seine. Juvenile salmon habitat use will be examined by beach seining in near-shore marine environment. Findings from this project are vital for understanding effects of the commercial fishery and environmental changes occurring in the Chignik River system on the sockeye salmon population.
Download or read book Operational Plan written by Justin T. Priest and published by . This book was released on 2020 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This project is a two-year effort to collect tissue samples from coho salmon Oncorhynchus kisutch populations across Southeast Alaska to create a more comprehensive genetic baseline. Previous genetic tissue sampling of coho salmon in Southeast Alaska has been conducted opportunistically in conjunction with other field work; this project will add to existing sample collections and target undersampled populations, with a focus on populations in transboundary rivers and the Northern Boundary Area that are managed under the Pacific Salmon Treaty. The creation of a genetic baseline for coho salmon will assist in future stock management by allowing population differentiation to inform regulatory decisions and allow for genetic stock identification (GSI) of commercial harvests."--Page 1
Download or read book Stikine River Sockeye Salmon Stock Assessment 2021 written by Julie Bednarski and published by . This book was released on 2021 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 2021 forecast of Stikine River sockeye salmon, Oncorhynchus nerka, run abundance is poor and we anticipate very little harvesting opportunity for either U.S. or Canadian fisheries. Since 1994, we have almost exclusively relied on the Canadian lower river commercial fishery to provide the migratory timing information that is used to complete the mixed stock run reconstruction for Stikine River sockeye salmon. It is highly likely there will be no fishing opportunity in 2021 to gather this pertinent information. To obtain stock composition data necessary to estimate the inriver abundance, we are initiating a sockeye salmon stock assessment program at Kakwan Point. The project will be conducted in conjunction with the existing Stikine River Chinook salmon, O. tshwaytscha, assessment program, and will extend the project through the end of the sockeye salmon run in late August. Tissue samples will be collected from sockeye salmon for genetic mixed stock analysis and for use in a genetic mark–recapture study to estimate inriver abundance based on an expansion of the Tahltan stock that is monitored via weir. We will also gather daily catch per unit effort (CPUE) information and estimate the age, sex and length (ASL) composition for sockeye salmon captured. This stock assessment program is designed to capture sockeye salmon in proportion to abundance during immigration; therefore, it is expected that it will provide an unbiased estimate of abundance. This estimate will be assessed by TTC postseason for use in the Stikine River sockeye salmon run reconstruction.
Download or read book Operational Plan Southeast Alaska Coho Salmon Genetic Baseline Sample Collection 2023 written by Matthew R. Catterson and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project is part of a multiyear effort to collect tissue samples from coho salmon Oncorhynchus kisutch populations across Southeast Alaska to create a comprehensive genetic baseline. Previous genetic tissue sampling of coho salmon in Southeast Alaska has been conducted opportunistically in conjunction with other field work. This project will add to existing sample collections, target under sampled populations, and collect genetic samples from geographic areas that have not yet been targeted. The creation of a genetic baseline for coho salmon will provide information on population differentiation to inform regulatory decisions, hatchery releases, and allow for genetic stock identification (GSI) of fishery harvests.
Download or read book Operational Plan Situk River Salmon Enumeration and Sampling Procedures 2021 2022 written by Richard A. Hoffman (Biologist) and published by . This book was released on 2021 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Alaska Department of Fish and Game, Division of Commercial Fisheries, monitors annual escapements of salmon returning to the Situk River system near Yakutat, Alaska. A weir in the lower river provides the primary mode of enumeration for sockeye Oncorhynchus nerka and Chinook O. tshawytscha salmon escapements into the Situk River. Information provided by this project is used inseason to manage the Situk-Ahrnklin Inlet commercial set gillnet fishery and the inriver sport fisheries to ensure escapement goals are met and to maximize and sustain the harvest of salmon from the Situk River. A two-person crew will enumerate all species of salmon through the Situk River weir and sample adult sockeye and Chinook salmon for biological characteristics (age, sex, and length). This report provides operational guidelines for the Situk River adult salmon weir project, including salmon enumeration, sampling procedures, and weir protocols.
Download or read book Operational Plan written by Nicole L. Zeiser and published by . This book was released on 2020 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Chilkat Lake sockeye salmon (Oncorhynchus nerka) run, which spawns near Haines, is one of the largest in Southeast Alaska and contributes substantially to harvests in the District 15 commercial drift gillnet fishery in Lynn Canal. This operational plan outlines objectives, methods, and timelines for conducting sockeye salmon stock assessment designed to (1) estimate annual escapement, (2) provide information for inseason fishery management, and (3) reconstruct runs and assess stock status. The Chilkat Lake sockeye salmon run is managed for a biological escapement goal of 70,000–150,000 fish, which is enumerated with a Dual-Frequency Identification Sonar (DIDSON) system operated in conjunction with a standard picket weir located just downstream of the lake outlet. Genetic mixed stock analysis of weekly sockeye salmon harvests in the District 15 commercial drift gillnet fishery provides stock composition estimates that guide inseason management of the fishery (detailed in a separate Chilkoot Lake sockeye salmon operational plan). Biological sampling, along with escapement enumeration and stock-specific harvest data, allows for total run reconstruction required for escapement goal review. This project also supports the collection of basic limnology information at Chilkat Lake.
Download or read book Operational Plan McDonald Lake Sockeye Salmon Stock Assessment 2021 2023 written by Andrew W. Piston and published by . This book was released on 2021 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary purpose of this project is to provide an estimate of the sockeye salmon escapement at McDonald Lake by conducting foot surveys on the spawning grounds at Hatchery Creek. We will also estimate the adult age composition of the escapement. Using results from a Pacific Salmon Treaty genetic stock identification project, we will estimate the contribution of McDonald Lake sockeye salmon to southern Southeast Alaska commercial net fisheries. This project also includes a fall hydroacoustic survey to estimate rearing juvenile sockeye salmon abundance.
Download or read book Operational Plan Susitna River Chinook Salmon Inriver Abundance 2021 written by Johnathon K. Campbell and published by . This book was released on 2022 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this study is to estimate the abundance of Chinook salmon at river mile (RM) 34 of the mainstem Susitna River and spawning distribution among 5 management areas in 2021. A 2-event, mark-recapture experiment in combination with radiotelemetry will be used. Fish wheels and gillnets will be operated at river mile (RM) 34 to capture Chinook salmon for marking with passive integrated transponder (PIT) and radiotelemetry tags. Recapture event sampling will occur at the Deshka River weir at RM 7 where a PIT detection array will be used. Eight radiotracking stations will be strategically placed throughout the drainage to determine when radiotagged fish move in and out of the 5 management zones, allowing a determination of spawning distribution. A concurrent genetics mark-recapture study will be performed using genetics samples taken from a systematic sample of all PIT-tagged fish. The applied radio tags will also be used to estimate handling effects. In the event of a sport fishery, the proportions of non-Deshka River Chinook salmon in the sport harvest taken in 2 sections of the Deshka River will also be estimated through sampling of axillary processes from harvested fish and genetic stock identification.
Download or read book Inriver Abundance of Stikine River Sockeye Salmon 2022 2024 written by Kristin Courtney and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 2022 forecast of Stikine River sockeye salmon, Oncorhynchus nerka, run abundance is poor and we anticipate very little harvest opportunity for either U.S. or Canadian fisheries. Since 1994, we have almost exclusively relied on the Canadian lower river commercial fishery to provide the stock-specific information that is used to complete the mixed stock run reconstruction for Stikine River sockeye salmon. It is highly likely there will be little commercial fishing opportunity in 2022 to gather this pertinent information. To obtain stock composition data necessary to estimate the inriver abundance, we will continue to conduct a sockeye salmon stock assessment program at Kakwan Point that began in 2021. The project will be conducted in conjunction with the existing Stikine River Chinook salmon, O. tshwaytscha, stock assessment program, and will extend the project through the end of the sockeye salmon run in mid-August. Tissue samples will be collected from sockeye salmon for genetic mixed stock analysis and for use in a genetic mark–recapture study to estimate inriver abundance based on an expansion of the Tahltan stock that is monitored via weir. We will also gather daily CPUE information, capture and spaghetti tag sockeye salmon, and estimate the age, sex, and length composition for sockeye salmon captured at Kakwan Point.
Download or read book Chignik River System Sockeye Salmon Smolt Sampling Report 2021 2022 written by Matthew Olson and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the results of the sockeye salmon Oncorhynchus nerka smolt monitoring project conducted by the Alaska Department of Fish and Game in the Chignik River system in 2021 and 2022. The research was designed to assess fish body condition and document relative abundance and outmigration timing in the Chignik River watershed. Sockeye salmon smolt were captured using a beach seine in Chignik Lagoon. In 2021, 1,348 ageable scale samples were collected. Of these, 974 (72.3%) were freshwater-age-1 and 370 (27.5%) were freshwater-age-2 smolt. In 2022, 1,378 ageable scale samples were collected. Of these, 752 (54.6%) were freshwater-age-1 and 377 (27.4%) were freshwater-age-2 smolt. Sockeye smolt were of above-average body condition in 2021 and 2022 when compared to historical data.
Download or read book Sampling Instructions for Genetic Stock Identification of Southeast Alaska Chinook Salmon written by Alaska. Division of Commercial Fisheries. Gene Conservation Laboratory and published by . This book was released on 200? with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Operational Plan written by Nicole L. Zeiser and published by . This book was released on 2020 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Chilkoot Lake sockeye salmon (Oncorhynchus nerka) run, which spawns near Haines, is one of the largest in Southeast Alaska and contributes substantially to harvests in the District 15 commercial drift gillnet fishery in Lynn Canal. This operational plan outlines objectives, methods, and timelines for conducting sockeye salmon stock assessment designed to (1) estimate annual escapement and harvest, (2) provide information for inseason fishery management, and (3) reconstruct runs and assess stock status. The Chilkoot Lake run is managed for a biological escapement goal of 38,000–86,000 fish, which is enumerated through a standard picket weir located just downstream of the lake outlet. Weir counts of sockeye salmon are compared to weekly escapement targets to determine inseason run strength. Genetic mixed stock analysis of weekly sockeye salmon harvests in the District 15 commercial drift gillnet fishery provides stock composition estimates that also guide inseason management of the fishery. Biological sampling, along with escapement enumeration and stock-specific harvest data, allows for total run reconstruction required for escapement goal review.
Download or read book Buskin River Sockeye Salmon Stock Assessment Operational Plan 2022 written by Kelly M. Krueger and published by . This book was released on 2022 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this project is to census the sockeye salmon escapement into Buskin Lake during 2022. The age, sex, and length composition of the run (escapement and subsistence harvest combined) to Buskin Lake will also be estimated.
Download or read book Operational Plan Sockeye Salmon Escapement Studies at the Russian River 2023 2026 written by Jenny L. Gates and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Russian River sockeye salmon escapement assessment project, which began in 1962, is one of the oldest stock assessment projects in the state of Alaska. During 2023–2026, the Russian River weir will be operated annually from early June through the first 7 to 10 days of September. All species of fish seen passing the weir through the fish chute will be enumerated daily. Sampling of sockeye salmon for age, sex, and length data will be done each Friday, and the sample size each week will be based on the previous week’s fish passage. Sockeye and Chinook salmon spawning downstream of the Russian River weir to the confluence of the Russian River and the Kenai River will be assessed by a foot survey during the fourth week of August. Multiple foot surveys will also be conducted from mid-May to 10 June to assess spawning rainbow trout.
