Operation of Abernathy Channel for Incubation of Salmon Eggs PDF Download
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Author: Allan E. Thomas
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 24
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Book Description
A spawning and incubation channel constructed in 1959 on Abernathy Creek near Longview, Washington, has been used for seasons to incubate fall chinook salmon and chum salmon eggs. Survival of eggs from both species was higher than reported for other channels and controlled-flow projects. Studies included effects of sedimentation, egg planting density, and stage of egg development at planting on survival. In early experiments sediment in the upper sections substantially reduced survival. In later experiments, after the construction of a sand trap and settling chamber, survivals significantly increased.
Author: Allan E. Thomas
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 24
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Book Description
A spawning and incubation channel constructed in 1959 on Abernathy Creek near Longview, Washington, has been used for seasons to incubate fall chinook salmon and chum salmon eggs. Survival of eggs from both species was higher than reported for other channels and controlled-flow projects. Studies included effects of sedimentation, egg planting density, and stage of egg development at planting on survival. In early experiments sediment in the upper sections substantially reduced survival. In later experiments, after the construction of a sand trap and settling chamber, survivals significantly increased.
Author: United States. Bureau of Sport Fisheries and Wildlife
Publisher:
ISBN:
Category : Fish culture
Languages : en
Pages : 398
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Author:
Publisher:
ISBN:
Category : Fish culture
Languages : en
Pages : 674
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Author: United States. Bureau of Sport Fisheries and Wildlife
Publisher:
ISBN:
Category : Fish-culture
Languages : en
Pages : 608
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Book Description
Author: R. E. Putz
Publisher:
ISBN:
Category : Cryptobia
Languages : en
Pages : 32
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Book Description
Studies on two hemoflagellates of fish were carried out to determine biological parameters: host range, vector relations, in vivo culture, in vitro culture, pathogenicit, and cryogenic preservation.
Author: Herman O. Sanders
Publisher:
ISBN:
Category : Gammaridae
Languages : en
Pages : 22
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Book Description
Static bioassays were conducted to determine the relative acute toxicites of some insecticides, herbicides, fungicides, and a defoliant to the scud Gammarus lacustris.
Author:
Publisher:
ISBN:
Category : Fish trade
Languages : en
Pages : 1562
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Author:
Publisher:
ISBN:
Category : Water resources development
Languages : en
Pages : 556
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Book Description
Author: Northwest Regional Educational Laboratory
Publisher:
ISBN:
Category : Vocational education
Languages : en
Pages : 810
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Author:
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 494
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Book Description
