Age, Sex, and Length Composition of Chinook Salmon from the 2002 Kuskokwim River Subsistence Fishery PDF Download

Author: Douglas B. Molyneaux
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 45

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Author:
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 47

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Author: Zachary W. Liller
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 52

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Author: Douglas B. Molyneaux
Publisher:
ISBN:
Category : Pacific salmon
Languages : en
Pages : 431

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Includes both escapement and harvest (commercial) data for chinook, sockeye, chum, and coho salmon in the Tatlawiksuk, Kogrukluk, George, Aniak, Tuluksak, Kwethluk rivers (all tributaries of the Kuskokwim River) and for the Kanektok and Middle Fork Goodnews rivers.

Author: Alan Burkholder
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 32

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Author: Alaska. Division of Commercial Fisheries
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ISBN:
Category : Pacific salmon
Languages : en
Pages : 170

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Author: Benjamin W. Van Alen
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ISBN:
Category : Chinook salmon
Languages : en
Pages : 48

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Author: Lisa Ann Stuby
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ISBN:
Category : Chinook salmon
Languages : en
Pages : 43

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Author: Terri M. Tobias
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ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 129

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The purpose of this report is to summarize all available age, length and sex composition data that can be utilized from data collected since 1979. This report supersedes Regional Information Report 2A04-12 "Age and Length Composition of Sockeye, Chinook, Coho, and Chum Salmon from 1979-2003 and Sockeye Salmon Female Contribution from 1987-2003 in selected Commercial Fisheries and River Escapements, in Upper Cook Inlet, Alaska."

Author:
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 178

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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