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Author : Randolph P. Ericksen
Publisher :
ISBN 13 :
Total Pages : 41 pages
Book Rating : 4.:/5 (584 download)
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:
Author : Scott Alan McPherson
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (446 download)
Download or read book Optimal Production of Chinook Salmon from the Taku River written by Scott Alan McPherson and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Scott Alan McPherson
Publisher :
ISBN 13 :
Total Pages : 64 pages
Book Rating : 4.:/5 (68 download)
Download or read book Optimal Production of Chinook Salmon from the Situk River written by Scott Alan McPherson and published by . This book was released on 2005 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Matthew J. Evenson
Publisher :
ISBN 13 :
Total Pages : 37 pages
Book Rating : 4.:/5 (497 download)
Download or read book Optimal Production of Chinook Salmon from the Chena and Salcha Rivers written by Matthew J. Evenson and published by . This book was released on 2002 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David R. Bernard
Publisher :
ISBN 13 :
Total Pages : 39 pages
Book Rating : 4.:/5 (446 download)
Download or read book Optimal Production of Chinook Salmon from the Stikine River written by David R. Bernard and published by . This book was released on 1999 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Christie F. Hendrich
Publisher :
ISBN 13 :
Total Pages : 134 pages
Book Rating : 4.:/5 (298 download)
Download or read book Optimal Production of Chinook Salmon from the Unuk River written by Christie F. Hendrich and published by . This book was released on 2008 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: Estimations of optimal production of adult Chinook salmon, Oncorhynchus tshawytscha, from the Unuk River using information from a stock assessment program (1981-2005) and catch sampling programs of the U.S. and Canadian troll, gillnet and recreational fisheries.
Author : Brian W. Elliott
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (135 download)
Download or read book Operational Plan: Production and Harvest of Chilkat River Chinook and Coho Salmon, 2020-2021 written by Brian W. Elliott and published by . This book was released on 2022 with total page 0 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 2020 and spring 2021 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 2020 (juvenile Chinook salmon) and spring 2021 (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.
Author : Randolph P. Ericksen
Publisher :
ISBN 13 :
Total Pages : 66 pages
Book Rating : 4.:/5 (857 download)
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.
Author : Richard S. Chapell
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.:/5 (568 download)
Download or read book Production, Escapement, and Juvenile Tagging of Chilkat River Chinook Salmon in 2006 written by Richard S. Chapell and published by . This book was released on 2009 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study was to estimate the sport harvest, escapement, and production of Chinook salmon, Oncorhynchus tshawytscha, returning to the Chilkat River during 2006.
Author : Robert D. Mecum
Publisher :
ISBN 13 :
Total Pages : 98 pages
Book Rating : 4.:/5 (319 download)
Download or read book A Study of Chinook Salmon in Southeast Alaska written by Robert D. Mecum and published by . This book was released on 1989 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Richard S. Chapell
Publisher :
ISBN 13 :
Total Pages : 78 pages
Book Rating : 4.:/5 (99 download)
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:
Author : Brian W. Elliott
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (134 download)
Download or read book Operational Plan: Production and Harvest of Chilkat River Chinook and Coho Salmon, 2021-2022 written by Brian W. Elliott and published by . This book was released on 2022 with total page 0 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 2020 and spring 2021 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 2020 (juvenile Chinook salmon) and spring 2021 (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.
Author : Scott Alan McPherson
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.:/5 (653 download)
Download or read book Optimal Production of Chinook Salmon from the Taku River Through the 2001 Year Class written by Scott Alan McPherson and published by . This book was released on 2010 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of a study of the biological escapement goal for Chinook salmon, Oncorhynchus tshawytscha, from the Taku River. This study was investigated with information from a stock assessment program (1973-2007), catch sampling programs of the Canadian inriver gillnet fishery, the U.S. commercial gillnet fishery in Taku Inlet, the troll fishery in Southeast Alaska, and the U.S. recreational fishery near Juneau.
Author : Brian W. Elliott
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (137 download)
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.
Author : Randy L. Peterson
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (137 download)
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.
Author : Brian W. Elliott
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (134 download)
Download or read book Operational Plan: Chilkat River Chinook Salmon Escapement Studies in 2021 written by Brian W. Elliott and published by . This book was released on 2022 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 2019. Event 1 capture and marking will be conducted in the lower Chilkat River, and event 2 recapture will be conducted in principal spawning areas within the Chilkat River drainage. Data produced from this project will include spawning abundance of large Chinook salmon, age and sex compositions of the run, and when possible, age-1.2 abundance and length composition in the Chilkat River drainage. Chilkat River Chinook salmon are an exploitation rate and escapement indicator stock for the Pacific Salmon Commission Chinook Technical Committee, and it has been proposed that this stock be included in the coastwide Chinook salmon model used by the Pacific Salmon Commission to monitor coastwide abundance. Mark-recapture experiments have been conducted in the Chilkat River drainage since 1991; escapement estimates for 1991-2018 have an average coefficient of variation of 14%, which contributes toward precise stock assessment production estimates for the Chilkat River Chinook salmon stock. As part of the ongoing Chilkat River Chinook salmon coded wire tag studies, all Chinook salmon encountered in the mark-recapture experiment will be examined for adipose fin clips and the presence of a coded wire tag, which can be used for estimating juvenile production and marine harvest. Data collected from this project will be used to create full production estimates for the Chilkat stock.
Author : Keith A. Pahlke
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (251 download)
Download or read book Migratory Patterns and Fishery Contributions of Chilkat River Chinook Salmon written by Keith A. Pahlke and published by . This book was released on 1990 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
