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Harvest And Harvest Rates Of Sockeye Salmon Stocks In Fisheries Of The Western Alaska Salmon Stock Identification Program Wassip 2006 2008
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Book Synopsis Harvest and Harvest Rates of Sockeye Salmon Stocks in Fisheries of the Western Alaska Salmon Stock Identification Program (WASSIP), 2006-2008 by : Christopher Habicht
Download or read book Harvest and Harvest Rates of Sockeye Salmon Stocks in Fisheries of the Western Alaska Salmon Stock Identification Program (WASSIP), 2006-2008 written by Christopher Habicht and published by . This book was released on 2012 with total page 751 pages. Available in PDF, EPUB and Kindle. Book excerpt: Uncertainty about the magnitude, frequency, location, and timing of stock-specific sockeye and chum salmon harvest in western Alaska fisheries was the impetus for the Western Alaska Salmon Stock Identification Program (WASSIP). The program was designed to use genetic data in mixed stock analysis (MSA) of fisheries samples to more clearly describe harvest patterns of sockeye and chum salmon stocks in western Alaska fisheries. This report reviews the history of WASSIP, summarizes the memorandum of understanding as the guiding document for the program, and reviews participation and contributions of the Advisory Panel and Technical Committee to the program. Brief descriptions of WASSIP sockeye fisheries are provided and previous sockeye tagging and stock identification studies are reviewed. We describe the methodology used to estimate stock-specific harvests and harvest rates for sockeye salmon, report these estimates, and provide guidance on interpretation of results. These results provide the most comprehensive examination of stock-specific harvest and harvest rates across western Alaska sockeye salmon fisheries ever attempted.
Book Synopsis Stock Composition of Sockeye Salmon Harvests in Fisheries of the Western Alaska Salmon Stock Identification Program (WASSIP), 2006-2008 by : Tyler H. Dann
Download or read book Stock Composition of Sockeye Salmon Harvests in Fisheries of the Western Alaska Salmon Stock Identification Program (WASSIP), 2006-2008 written by Tyler H. Dann and published by . This book was released on 2012 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Uncertainty about the magnitude, frequency, location, and timing of stock-specific sockeye and chum salmon harvest in Western Alaska fisheries was the impetus for the Western Alaska Salmon Stock Identification Program (WASSIP). The program was designed to use genetic data in mixed stock analysis of fisheries samples to more clearly describe harvest patterns of sockeye and chum salmon stocks in western Alaska fisheries (from Chignik Area to Kuskokwim Area for sockeye salmon). Stock composition estimates for temporal strata across fisheries are required to estimate stock-specific harvest numbers and rates. This report describes the methodology used to estimate stock compositions for sockeye salmon, presents stock composition estimates, and provides guidance on how to interpret biases documented in the genetic baseline.
Book Synopsis Harvest and Harvest Rates of Chum Salmon Stocks in Fisheries of the Western Alaska Salmon Stock Identification Program (WASSIP), 2007-2009 by : Andrew Roy Munro
Download or read book Harvest and Harvest Rates of Chum Salmon Stocks in Fisheries of the Western Alaska Salmon Stock Identification Program (WASSIP), 2007-2009 written by Andrew Roy Munro and published by . This book was released on 2012 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: Uncertainty about the magnitude, frequency, location, and timing of stock-specific sockeye and chum salmon harvest in western Alaska fisheries was the impetus for the Western Alaska Salmon Stock Identification Program (WASSIP). The program was designed to use genetic data in mixed stock analysis (MSA) of fisheries samples to more clearly describe harvest patterns of sockeye and chum salmon stocks in western Alaska fisheries. This report reviews the history of WASSIP, summarizes the memorandum of understanding as the guiding document for the program, and reviews participation and contributions of the Advisory Panel and Technical Committee to the program. Brief descriptions of WASSIP sockeye fisheries are provided and previous sockeye tagging and stock identification studies are reviewed. We describe the methodology used to estimate stock-specific harvests and harvest rates for sockeye salmon, report these estimates, and provide guidance on interpretation of results. These results provide the most comprehensive examination of stock-specific harvest and harvest rates across western Alaska sockeye salmon fisheries ever attempted.
Book Synopsis Estimating Escapement of Western Alaskan Sockeye Salmon for Western Alaska Salmon Stock Identification Program Reporting Groups, 2006 to 2008 by : Douglas Murrell Eggers
Download or read book Estimating Escapement of Western Alaskan Sockeye Salmon for Western Alaska Salmon Stock Identification Program Reporting Groups, 2006 to 2008 written by Douglas Murrell Eggers and published by . This book was released on 2012 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Western Alaska Salmon Stock Identification Program (WASSIP) was initiated in 2006 with a memorandum of understanding executed by an Advisory Panel of 11 signatories, including Alaska Department of Fish and Game, and stakeholders from throughout western Alaska. The purpose of WASSIP was to identify stock contributions of sockeye (Oncorhynchus nerka) and chum salmon (O. keta) to commercial and subsistence fisheries from Chignik northward to Kotzebue Sound, and to extend those estimates to stock-specific harvest rates. This report describes the regional fishery model and estimation of escapement and harvest rates for sockeye salmon. Escapements and associated uncertainties were estimated for each of the WASSIP sockeye salmon regional reporting groups (Chignik, South Peninsula, North Peninsula, Bristol Bay, Kuskokwim Bay), and subregional reporting groups (i.e., stocks). The 2006 to 2008 escapement estimates were based on information available in annual area management reports, other monitoring and assessment reports, and department databases.
Book Synopsis Stock Composition of Chum Salmon Harvests in Fisheries of the Western Alaska Salmon Stock Identification Program (WASSIP), 2007-2009 by : William D. Templin
Download or read book Stock Composition of Chum Salmon Harvests in Fisheries of the Western Alaska Salmon Stock Identification Program (WASSIP), 2007-2009 written by William D. Templin and published by . This book was released on 2012 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: Uncertainty about the magnitude, frequency, location, and timing of stock-specific sockeye and chum salmon harvest in western Alaska fisheries was the impetus for the Western Alaska Salmon Stock Identification Program (WASSIP). The program was designed to use genetic data for mixed stock analysis (MSA) of fisheries samples to more clearly describe harvest patterns of chum and sockeye salmon stocks in western Alaska fisheries. Stock composition estimates for temporal strata across fisheries are required to estimate stock-specific harvest numbers and rates. This report describes the methods used to estimate stock compositions for chum salmon, presents stock composition estimates, and provides guidance on how to interpret biases documented in MSA baseline tests when evaluating stock composition estimates of WASSIP catch samples.
Book Synopsis Preliminary Harvest Rates of Western Alaska and Alaska Peninsula Chum Salmon Stocks in South Alaska Peninsula Fisheries, 2022 by : Alaska. Department of Fish and Game
Download or read book Preliminary Harvest Rates of Western Alaska and Alaska Peninsula Chum Salmon Stocks in South Alaska Peninsula Fisheries, 2022 written by Alaska. Department of Fish and Game and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document provides preliminary harvest rate estimates of western Alaska and Alaska Peninsula stocks in the 2022 South Alaska Peninsula commercial fisheries. The methods used in the Western Alaska Salmon Stock Identification Program (WASSIP) study were followed as closely as possible and deviations are described. These results supplement previous studies and may be useful to inform fishery management and the regulatory process.
Book Synopsis Age Composition of Sockeye Salmon Sampled as Part of the Western Alaska Salmon Stock Identification Program Within Westward Region Commercial Fisheries, 2006-2008 by : M. Birch Foster
Download or read book Age Composition of Sockeye Salmon Sampled as Part of the Western Alaska Salmon Stock Identification Program Within Westward Region Commercial Fisheries, 2006-2008 written by M. Birch Foster and published by . This book was released on 2014 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Western Alaska Salmon Stock Identification Program (WASSIP) was conducted to determine stock origin of chum salmon and sockeye salmon in commercial fisheries of western Alaska. Concurrent sampling of sockeye salmon scales was conducted in a limited portion of areas from Chignik Area (Area L) fishery and North Alaska Peninsula (Area M) fishery. These sampled areas lie on the north and south sides of the Alaska Peninsula in the Port Moller, Chignik and Port Heiden areas.
Book Synopsis Genetic Stock Composition of the Commercial Harvest of Sockeye Salmon in Southeastern District Mainland, Alaska Peninsula Management Area, 2010-2012 by : Tyler H. Dann
Download or read book Genetic Stock Composition of the Commercial Harvest of Sockeye Salmon in Southeastern District Mainland, Alaska Peninsula Management Area, 2010-2012 written by Tyler H. Dann and published by . This book was released on 2012 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Southeastern District Mainland (SEDM) commercial salmon fishery occurs in the Alaska Peninsula Management Area, Westward Region, is regulated based upon a board-approved management plan, and has allocative constraints between June 1 and July 25 based upon the abundance of Chignik River sockeye salmon. Significant controversy has persisted between SEDM and Chignik Management Area fishermen concerning the estimate of Chignik-bound sockeye salmon harvested in the fishery. Western Alaska Salmon Stock Identification Program used mixed stock analysis (MSA) to determine stock of origin of sockeye (and chum salmon) in commercial and subsistence fisheries throughout Western Alaska from 2006 to 2009. As a result of low returns to the Chignik River during these years, the SEDM fishery was often closed and few samples were collected for analysis. This study was designed to fill in those holes and estimate stock proportions and stock-specific harvests of sockeye salmon sampled from the SEDM fishery.
Book Synopsis Sockeye Salmon Baseline for the Western Alaska Salmon Stock Identification Project by : Tyler H. Dann
Download or read book Sockeye Salmon Baseline for the Western Alaska Salmon Stock Identification Project written by Tyler H. Dann and published by . This book was released on 2012 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: Uncertainty about the magnitude, frequency, location, and timing of the nonlocal harvest of sockeye and chum salmon in Western Alaska fisheries was the impetus for the Western Alaska Salmon Stock Identification Project (WASSIP). The project was designed to use genetic data in mixed stock analysis (MSA) to reduce this uncertainty. A baseline of allele frequencies is required for use in mixed stock analysis to estimate the stock of origin of harvested fish. This report describes the methodology we used to understand the population genetic structure and build a baseline for use in MSA, describes the performance of the baseline for MSA, and provides guidance on how to interpret biases documented in the MSA tests when evaluating future stock composition estimates of WASSIP mixtures.
Book Synopsis Estimating Escapement of Western Alaska Chum Salmon for Western Alaska Salmon Stock Identification Program Reporting Groups, 2007 to 2009 by : Douglas Murrell Eggers
Download or read book Estimating Escapement of Western Alaska Chum Salmon for Western Alaska Salmon Stock Identification Program Reporting Groups, 2007 to 2009 written by Douglas Murrell Eggers and published by . This book was released on 2012 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Western Alaska Salmon Stock Identification Program (WASSIP) was initiated in 2006 with a memorandum of understanding executed by an Advisory Panel of 11 signatories, including Alaska Department of Fish and Game, and stakeholders from throughout western Alaska. The purpose of WASSIP was to identify stock contributions of sockeye (Oncorhynchus nerka) and chum salmon (O. keta) to commercial and subsistence fisheries from Chignik northward to Kotzebue Sound, and to extend those estimates to stock-specific harvest rates. This report describes the regional fishery model and estimation of escapement and harvest rates for chum salmon. Escapements and associated uncertainties were estimated for each of the WASSIP chum salmon regional reporting groups (Chignik/Kodiak, South Peninsula, Northwest District, Northern District, Coastal Western Alaska, Upper Yukon River, Kotzebue Sound; i.e., stocks). The 2007 to 2009 escapement estimates were based on information available in annual area management reports, other monitoring and assessment reports, and department databases.
Book Synopsis Genetic Stock Composition of the Commercial Harvest of Sockeye Salmon in Bristol Bay, Alaska, 2009 by : Tyler H. Dann
Download or read book Genetic Stock Composition of the Commercial Harvest of Sockeye Salmon in Bristol Bay, Alaska, 2009 written by Tyler H. Dann and published by . This book was released on 2011 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Bristol Bay Management Area supports the largest sockeye salmon Oncorhynchus nerka fishery in the world. Alaska Department of Fish and Game is responsible for managing fisheries under the sustained-yield principle. Sockeye salmon stocks in Bristol Bay can be exploited at rates up to 80%, so accurately estimating the stock composition of catch is critical to determining the total run (catch and escapement) of each stock. Accurate estimates of total runs are vital for managing under the sustained-yield principle because they provide the basis for establishing and meeting escapement goals. In recent years, the department has developed a genetics program for sockeye salmon in Bristol Bay to develop and apply genetics methods to identify the stock composition of commercial catch in the five commercial fishing districts. Here we present genetic results from 2009, compare them to results from 2006 through 2008, and to those based on traditional age-based methods"--P. 1.
Book Synopsis Results from Sampling the 2006-2009 Commercial and Subsistence Fisheries in the Western Alaska Salmon Stock Identification Project by :
Download or read book Results from Sampling the 2006-2009 Commercial and Subsistence Fisheries in the Western Alaska Salmon Stock Identification Project written by and published by . This book was released on 2011 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Western Alaska Salmon Stock Identification Project (WASSIP) was initiated in 2006 with a memorandum of understanding executed by an Advisory Panel of 11 signatories, including Alaska Department of Fish and Game, and stakeholders from throughout western Alaska. The Advisory Panel also includes a federal representative. The purpose of WASSIP is to provide a mechanism for participants to engage in a collaborative decision-making process to expend allocated funds for the purposes of identifying the stock contributions of western Alaska sockeye and chum salmon to fisheries in and around western Alaska. The Advisory Panel approved a catch sampling plan and the Alaska Department of Fish and Game implemented comprehensive sampling of chum Oncorhynchus keta and sockeye O. nerka salmon caught in most commercial and subsistence salmon fisheries in marine and estuarine areas of western Alaska where catches of chum or sockeye salmon occurred from 2006 to 2009. For WASSIP, western Alaska represents a broad geographic region including areas inland and within state-managed marine waters from Kilokak Rocks (eastern end of Chignik Area) southwest along the coast to Scotch Cap (Unimak Pass) and from Scotch Cap north along the coast to Point Hope (northern end of Kotzebue Area). This report summarizes results of fisheries sampling in the WASSIP area from 2006 to 2009. We include summaries of estimated catch (harvest), samples collected, and samples intended for DNA analysis by strata organized by geography, species, year, and temporally within years.
Book Synopsis Genetic Stock Composition of the Commercial Harvest of Sockeye Salmon in Bristol Bay, Alaska, 2006-2008 by : Tyler H. Dann
Download or read book Genetic Stock Composition of the Commercial Harvest of Sockeye Salmon in Bristol Bay, Alaska, 2006-2008 written by Tyler H. Dann and published by . This book was released on 2009 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetic Stock Identification of Upper Cook Inlet Sockeye Salmon Harvest, 2005-2008 by : Andrew W. Barclay
Download or read book Genetic Stock Identification of Upper Cook Inlet Sockeye Salmon Harvest, 2005-2008 written by Andrew W. Barclay and published by . This book was released on 2010 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report updates previously reported analyses of genetic population structure and mixed-stock analysis of sockeye salmon, Oncorhynchus nerka, originating from all major spawning systems and harvested in commercial fisheries in Upper Cook Inlet, Alaska.
Book Synopsis Genetic Stock Identification of Upper Cook Inlet Sockeye Salmon Harvest, 2020 by : Andrew W. Barclay
Download or read book Genetic Stock Identification of Upper Cook Inlet Sockeye Salmon Harvest, 2020 written by Andrew W. Barclay and published by . This book was released on 2021 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report includes stock composition and stock-specific harvest estimates for 2020 Central District set and drift gillnet fisheries and Northern District set gillnet fishery for the following 8 reporting groups: (1) the largest producer of sockeye salmon on the west side of Cook Inlet (Crescent River; Crescent); (2) the remaining West Cook Inlet producers (West); (3) the lakes monitored by weirs in the Susitna/Yentna Rivers (Judd/Chelatna/Larson lakes) with the addition of the Mama and Papa Bear Lakes and Talkeetna Sloughs population (JCL); (4) the remaining producers in the Susitna/Yentna Rivers (SusYen); (5) the only major creek monitored with a weir in the Knik/Turnagain/Northeast Cook Inlet area (Fish Creek; Fish); (6) the remaining Knik/Turnagain/Northeast Cook Inlet producers (KTNE); (7) the composite of all populations within the Kenai River (Kenai); and (8) the composite of all populations within the Kasilof River (Kasilof).
Book Synopsis Genetic Stock Identification of Upper Cook Inlet Sockeye Salmon Harvest, 2012-2013 by : Andrew W. Barclay
Download or read book Genetic Stock Identification of Upper Cook Inlet Sockeye Salmon Harvest, 2012-2013 written by Andrew W. Barclay and published by . This book was released on 2017 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mixed stock analysis based on genetic data has been used to estimate the stock compositions of sockeye salmon Oncorhynchus nerka harvested in commercial fisheries in Upper Cook Inlet (UCI), Alaska, since 2005. Here we report the genetic mixed stock analysis samples representing 99% of the 2012 and 2013 UCI commercial fishery harvests. Postseason analyses were performed using a previously reported baseline of 69 populations and 96 single nucleotide polymorphic markers, with the addition of 2 populations in the West reporting group (Harriet Creek and Packers Lake late run). Stock composition patterns in the commercial fishery were similar to previous years: eastern fisheries generally captured more Kenai and Kasilof rivers fish than western and northern fisheries; and gillnet fisheries closer to the Kenai or Kasilof river mouths harvested larger proportions of fish from those rivers. In 2012, however, the majority of Kasilof fish were harvested in the drift gillnet fisheries due to restrictions on the set gillnet fishery. Most stocks contributed similar proportions to the overall harvest in the UCI fishery compared to previously reported years, but Fish and Kasilof stocks were 38-86% below average and Susitna/Yentna River stocks were 19-77% above average. In 2013, 2 additional drift gillnet samples were analyzed to compare harvests in the Kenai and Kasilof expanded corridor (July 11) with the districtwide harvest (July 8). Kenai and Kasilof estimates were higher in the corridor sample than the districtwide sample, whereas estimates for the remaining reporting groups were generally lower, but these differences were not significant and could be attributed to the difference in sampling date. Estimates of stock-specific harvests for UCI commercial fisheries in 2012 and 2013 build upon previous years in refining understanding of productivity and the effect of management actions on the stock composition of commercial sockeye salmon harvests.
Book Synopsis Genetic Stock Identification of Upper Cook Inlet Sockeye Salmon Harvest, 2010 by : Andrew W. Barclay
Download or read book Genetic Stock Identification of Upper Cook Inlet Sockeye Salmon Harvest, 2010 written by Andrew W. Barclay and published by . This book was released on 2013 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reports on mixed-stock analysis based on genetic data which was used to estimate the stock compositions of sockeye salmon (Oncorhynchus nerka) harvested in commercial fisheries in upper Cook Inlet, Alaska.
