Author:
Publisher:
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Category :
Languages : en
Pages : 115
Book Description
The physiological development and physiological condition of spring chinook salmon are being studied at several hatcheries in the Columbia River Basin. The purpose of the study is to determine whether any or several smolt indices can be related to adult recovery and be used to improve hatchery effectiveness. The tests conducted in 1989 on juvenile chinook salmon at Dworshak, Leavenworth, and Warm Springs National Fish Hatcheries, and the Oregon State Willamette Hatchery assessed saltwater tolerance, gill ATPase, cortisol, insulin, thyroid hormones, secondary stress, fish morphology, metabolic energy stores, immune response, blood cell numbers, and plasma ion concentrations. The study showed that smolt development may have occurred before the fish were released from the Willamette Hatchery, but not from the Dworshak, Leavenworth, or Warm Springs Hatcheries. These results will be compared to adult recovery data when they become available, to determine which smolt quality indices may be used to predict adult recovery. The relative rankings of smolt quality at the different hatcheries do not necessarily reflect the competency of the hatchery managers and staff, who have shown a high degree of professionalism and expertise in fish rearing. We believe that the differences in smolt quality are due to the interaction of genetic and environmental factors. One aim of this research is to identify factors that influence smolt development and that may be controlled through fish husbandry to regulate smolt development. 35 refs., 27 figs., 5 tabs.
Smolt Quality Assessment of Spring Chinook Salmon
Columbia River Basin Salmon Recovery Efforts
Author: United States. Congress. Senate. Committee on Appropriations. Subcommittee on Energy and Water Development
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 568
Book Description
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 568
Book Description
Preliminary Evaluation of Chinook Salmon Smolt Quality in the San Joaquin Drainage
Author: Alice A. Rich
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 76
Book Description
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 76
Book Description
Research and Development Report
Author: United States. Bonneville Power Administration
Publisher:
ISBN:
Category : Electrical engineering
Languages : en
Pages : 84
Book Description
Publisher:
ISBN:
Category : Electrical engineering
Languages : en
Pages : 84
Book Description
An evaluation of rearing density in relation to post-release smolt survival and adult returns of spring chinook salmon at Dworshak National Fish Hatchery in Idaho
Author: Ray N. Jones
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 0
Book Description
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 0
Book Description
Energy Research Abstracts
Author:
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Category : Power resources
Languages : en
Pages : 438
Book Description
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 438
Book Description
Fish and Wildlife Implementation Plan
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 206
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 206
Book Description
Proposed Recovery Plan for Snake River Salmon
Author:
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Category : Fishes
Languages : en
Pages : 560
Book Description
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 560
Book Description
An Assessment of Lower Snake River Hydrosystem Alternatives on Survival and Recovery of Snake River Salmonids: Appendix ___to the U.S. Army Corps of Engineers' Lower Snake River Juvenile Salmonid Migration Feasibility Study.
Author: Northwest Fisheries Science Center (U.S.)
Publisher: DIANE Publishing
ISBN: 1428911170
Category : Commercial fishing
Languages : en
Pages : 181
Book Description
Publisher: DIANE Publishing
ISBN: 1428911170
Category : Commercial fishing
Languages : en
Pages : 181
Book Description
Fisheries Review
Author:
Publisher:
ISBN:
Category : Fish-culture
Languages : en
Pages : 554
Book Description
Publisher:
ISBN:
Category : Fish-culture
Languages : en
Pages : 554
Book Description