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Production And Spawning Distribution Of Chilkat River Chinook Salmon In 2005
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Book Synopsis Production and Spawning Distribution of Chilkat River Chinook Salmon in 2005 by : Randolph P. Ericksen
Download or read book Production and Spawning Distribution of Chilkat River Chinook Salmon in 2005 written by Randolph P. Ericksen and published by . This book was released on 2006 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study was to estimate the sport harvest, escapement, spawning distribution, and production of Chinook salmon, Oncorhynchus tshawytscha, returning to the Chilkat River during 2005.
Book Synopsis Chilkat River Chinook Salmon Studies, 1992 by : Robert E. Johnson
Download or read book Chilkat River Chinook Salmon Studies, 1992 written by Robert E. Johnson and published by . This book was released on 1993 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Study conducted to estimate spawning distribution and abundance of chinook salmon (Oncorhynchus tshawytscha) age 1.3 and older returning to the Chilkat River, near Haines (southeastern Alaska), radio telemetry and a mark-recapture experiment were used.
Book Synopsis Abundance and Distribution of the Chinook Salmon Escapement on the Stikine River in 2005, and Production of Fish from Brood Year 1998 by : Philip Richards
Download or read book Abundance and Distribution of the Chinook Salmon Escapement on the Stikine River in 2005, and Production of Fish from Brood Year 1998 written by Philip Richards and published by . This book was released on 2008 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spawning Abundance of Chinook Salmon in the Taku River in 2003 by :
Download or read book Spawning Abundance of Chinook Salmon in the Taku River in 2003 written by and published by . This book was released on 2006 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: A cooperative study involving the Department of Fisheries and Oceans Canada, the Alaska Department of Fish and Game, and the Taku River Tlingit First Nation was conducted to estimate the number of spawning Chinook salmon Oncorhynchus tshawytscha in the Taku River in 2003 with a mark-recapture experiment. Fish were captured at Canyon Island on the lower Taku River with fish wheels from May through August and were individually marked with back-sewn, solid-core spaghetti tags. All tagged fish were also batch marked with an opercle punch plus removal of the left axillary appendage. Sampling on the spawning grounds in tributaries was used to estimate the fraction of the population that had been marked. The estimated spawning abundance of small Chinook salmon ( 400 mm long; mid-eye to fork of tail) was 3,489 (SE = 1,052). Spawning abundance of medium-size Chinook salmon (401-659 mm) was estimated to be 16,780 (SE = 2,274). Finally, spawning abundance of large-size fish (= 660 mm) was estimated to be 36,435 (SE = 6,705), and the estimated total of all fish was 56,704 (SE = 7,158). The sum of the peak aerial survey counts of large spawning Chinook salmon conducted at five index tributaries of the Taku River was 16% of the mark-recapture estimate. Age 1.3 fish (1998 brood year) constituted an estimated 40% of the spawning population, followed by age 1.2 fish (1999 brood year), which constituted an estimated 29% of the population.
Book Synopsis Production and Harvest of Chilkat River Chinook and Coho Salmon, 2019-2020 by : Brian W. Elliott
Download or read book Production and Harvest of Chilkat River Chinook and Coho Salmon, 2019-2020 written by Brian W. Elliott and published by . This book was released on 2020 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: An ongoing coded-wire tag project, used as part of a stock assessment program for Chilkat River Chinook salmon Oncorhynchus tshawytscha and coho salmon Oncorhynchus kisutch, will be conducted during fall 2019 and spring 2020 to provide estimates of smolt abundance and marine harvest for Chinook and coho salmon. This project uses modified Peterson 2-event mark-recapture methods to estimate smolt abundance, and port and creel sampling of coded-wire tags in mixed stock commercial and sport fisheries to estimate marine harvest for both species. Juvenile salmon will be measured for length and weight, marked with adipose fin clips, and tagged with coded wire tags in fall 2019 (juvenile Chinook salmon) and spring 2020 (Chinook and coho salmon smolt) as event 1 of the mark-recapture study. During event 2, adult Chinook salmon will be sampled for missing adipose fins, coded wire tags, age, sex, and length in Chilkat River fishwheels and drift gillnets, which are operated in the lower Chilkat River as part of a separate adult mark-recapture project. Adult Chinook salmon will be also sampled for missing adipose fins, coded wire tags, and age, sex, and length during Chilkat River drainage spawning grounds surveys to complete event 2 sampling. Coho salmon will also be sampled as adults during event 2 in the lower Chilkat River fishwheels. Age composition of Chinook salmon adults will be estimated by scale ageing techniques; age composition of coho salmon smolt and adults will also be estimated. The Alaska Department of Fish and Game uses these data to make local and regional management decisions. Chilkat Chinook salmon is a Pacific Salmon Commission exploitation rate and escapement indicator stock and has recently been added to the base model of abundance indicator stocks for the Chinook Technical Committee, which influences coastwide management
Book Synopsis Chilkat River Chinook Salmon Escapement Studies in 2022 by : Brian W. Elliott
Download or read book Chilkat River Chinook Salmon Escapement Studies in 2022 written by Brian W. Elliott and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chilkat River large (age-1.3 and older) Chinook salmon Oncorhynchus tshawytscha inriver abundance and age and sex composition will be estimated using a 2-event mark–recapture experiment in 2022. Event 1 marking is conducted in the lower Chilkat River, and event 2 recapture is conducted in principal spawning areas within the Chilkat River drainage. Data produced from this project includes estimated spawning abundance and age, sex and length compositions of the large Chinook salmon run, and when possible, estimated spawning abundance and sex and length composition of the age-1.2 Chinook salmon run in the Chilkat River drainage. The Chilkat River stock of Chinook salmon is a Pacific Salmon Commission Chinook Technical Committee exploitation rate and escapement indicator stock, and contributes toward the coastwide Chinook model used by the Pacific Salmon Commission to monitor coastwide abundance. Mark–recapture experiments of adult Chinook salmon inriver abundance have been conducted in the Chilkat River drainage since 1991 and resulting escapement estimates have had an average coefficient of variation of 16%, which contributes toward precise stock assessment production estimates for the Chilkat River Chinook stock. As part of ongoing Chilkat River Chinook salmon coded wire tag studies, all Chinook salmon encountered in the mark–recapture experiment of adult Chinook salmon inriver abundance will be examined for missing adipose fins, an indication that fish may be tagged with a coded wire tag, information that leads to estimates of juvenile production and marine harvest. These data when used in conjunction with inriver abundance allows full production estimates for the Chilkat stock.
Book Synopsis Optimal Production of Chinook Salmon from the Chilkat River by : Randolph P. Ericksen
Download or read book Optimal Production of Chinook Salmon from the Chilkat River written by Randolph P. Ericksen and published by . This book was released on 2004 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Estimation of Chinook Salmon Abundance and Spawning Distribution in the Unalakleet River, 2009 by : Philip John Joy
Download or read book Estimation of Chinook Salmon Abundance and Spawning Distribution in the Unalakleet River, 2009 written by Philip John Joy and published by . This book was released on 2014 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Estimating Adult Chinook Salmon Abundance on the Chilkat and Unuk Rivers Using Transgenerational Genetic Mark–recapture by : Randy L. Peterson
Download or read book Estimating Adult Chinook Salmon Abundance on the Chilkat and Unuk Rivers Using Transgenerational Genetic Mark–recapture written by Randy L. Peterson and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transgenerational genetic mark–recapture (tGMR) methods will be used to estimate the spawning abundance of Chinook salmon Oncorhynchus tshawytscha at the Chilkat and Unuk Rivers in 2020 and 2021, respectively. Tissue samples from adults returning to the Chilkat River were collected in the summer of 2020 and from parr rearing in the Chilkat River in the fall of 2021. Lab work and data analysis will be completed in the winter of 2021–2022. Similarly, tissue samples from adults returning to the Unuk River were collected in the summer of 2021, and samples will be collected from parr in the fall of 2022. Lab work and data analysis will be completed in the winter of 2022–2023. These studies will be used to determine the feasibility of using tGMR to estimate escapement in Southeast Alaska by comparing tGMR abundance estimates to abundance estimates generated through existing field programs. This operational plan covers the lab and project reporting aspects of these projects. Primary data collection activities are described in the project-specific operational plans.
Book Synopsis Estimation of Chinook Salmon Abundance and Spawning Distribution in the Unalakleet River, 2010 by : Philip John Joy
Download or read book Estimation of Chinook Salmon Abundance and Spawning Distribution in the Unalakleet River, 2010 written by Philip John Joy and published by . This book was released on 2014 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Production, Escapement, and Juvenile Tagging of Chilkat River Chinook Salmon in 2011 by : Richard S. Chapell
Download or read book Production, Escapement, and Juvenile Tagging of Chilkat River Chinook Salmon in 2011 written by Richard S. Chapell and published by . This book was released on 2014 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Inriver Abundance, Spawning Distribution, and Run Timing of Copper River Chinook Salmon in 2002 by : James William Savereide
Download or read book Inriver Abundance, Spawning Distribution, and Run Timing of Copper River Chinook Salmon in 2002 written by James William Savereide and published by . This book was released on 2003 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Gulkana River Chinook Salmon Distribution by : Corey J. Schwanke
Download or read book Gulkana River Chinook Salmon Distribution written by Corey J. Schwanke and published by . This book was released on 2013 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study estimates the spawning distribution and run timing patterns of Chinook salmon in the Gulkana River and it also estimates proportions of Chinook salmon spawning above and below the counting tower. The study also discusses age, sex, and length (ASL) information collected from Chinook salmon. This information is used to characterize the composition of the Chinook salmon escapement and use that information in an age-structured model to evaluate the escapement goal and forecast returns.
Book Synopsis Inriver Abundance, Spawning Distribution, and Run Timing of Copper River Chinook Salmon, 2002-2004 by : James William Savereide
Download or read book Inriver Abundance, Spawning Distribution, and Run Timing of Copper River Chinook Salmon, 2002-2004 written by James William Savereide and published by . This book was released on 2005 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spawning Abundance of Chinook Salmon in the Chickamin River in 2005 by : Jan L. Weller
Download or read book Spawning Abundance of Chinook Salmon in the Chickamin River in 2005 written by Jan L. Weller and published by . This book was released on 2007 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: The escapement of chinook salmon, Oncorhynchus tshawytscha, returning to the Chickamin River in 2005 was estimated for a fifth consecutive year as part of an effort to determine an expansion factor to apply to future and historical peak aerial survey counts. The escapement of spawning salmon, an expansion factor for peak aerial survey counts, and age, sex, and length composition of the population were estimated. Escapement was estimated using a two-event mark-recapture experiment.
Book Synopsis Inriver Abundance, Spawning Distribution, and Migratory Timing of Copper River Chinook Salmon in 2001 by : James William Savereide
Download or read book Inriver Abundance, Spawning Distribution, and Migratory Timing of Copper River Chinook Salmon in 2001 written by James William Savereide and published by . This book was released on 2002 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Bonneville Power Administration. Division of Fish and Wildlife Publisher : ISBN 13 : Total Pages :48 pages Book Rating :4.:/5 (54 download)
Book Synopsis Spawning Distribution of Fall Chinook Salmon in the Snake River by : United States. Bonneville Power Administration. Division of Fish and Wildlife
Download or read book Spawning Distribution of Fall Chinook Salmon in the Snake River written by United States. Bonneville Power Administration. Division of Fish and Wildlife and published by . This book was released on 2001 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
