Mark-recapture Studies of Taku River Adult Sockeye Salmon Stocks in 2007 PDF Download
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Author: James Everett Andel
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 53
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Book Description
Author: James Everett Andel
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 53
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 68
Get Book Here
Book Description
Author: James Everett Andel
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 48
Get Book Here
Book Description
Author: James Everett Andel
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 144
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Book Description
Author: I. Boyce
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 52
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Book Description
Author: James Everett Andel
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 53
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 75
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Book Description
Author: James Everett Andel
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 50
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Book Description
Author: James Everett Andel
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 72
Get Book Here
Book Description
Author: I. Boyce
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 78
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Book Description
Mark-recapture studies of adult Taku River sockeye salmon (Oncorhyncus nerka) stocks were conducted by the Alaska Department of Fish and Game and the Taku River Tlingit First Nation in 2003. The objectives of the studies were to provide inseason estimates of the inriver abundance of sockeye O. nerka and to document biological charactieristics (migratory timing, migratory raes and age, sex, and size composition) of Taku River sockeye stocks. Tagged-to-untaggedratios of salmon harvested in the Canadian inriver gillnet fisheries were used to develop the estimates of the inriver abundance of sockeye. A total of 5,969 sockeye salmon were captured in fish wheels located in Canyon Island, Alaska, of which 5,463, were tagged and 1,744 (31.9%) were subsequently recovered in fisheries or on the spawning grouds. The inriver run of sockeye salmon past Canyon Island from June 5 to September 17 was estimated to be 200,918 fish (95% confidence interval 180,905 to 220,931). Canadian commercial, aboriginal and test fisheries harvested 32,933, 267 and 27 sockeye, respectively, resulting in a spawning escapement estimate estimate of 167,691 sockeye salmon. Based on mean date and standard deviation of migration timing the sockeye salmon run was approximately one day earlier and more compressed than the 1984-2002 average. The Kuthai Lake sockeye salmon stocks dominated the early portion of the run, the Little Trapper Lake the middle portion, and the Tatsamenie Lake and mainstem stocks the late portion. The fish wheel catches of 15,604 pink salmon, 262 chum salmon, and 49steelhead salmon were 2.8%, 50.8% below average and 29,7% above average, respectively. The pinksalmon run was five days earlier and slightly more compressed than average.
