Author: Ann L. Setter
Publisher:
ISBN:
Category : Genetics
Languages : en
Pages : 98
Book Description
A Summary of Stock Identification Research on White Sturgeon of the Columbia River (1985-1990)
Author: Ann L. Setter
Publisher:
ISBN:
Category : Genetics
Languages : en
Pages : 98
Book Description
Publisher:
ISBN:
Category : Genetics
Languages : en
Pages : 98
Book Description
Summary of Stock Identification Research on White Sturgeon of the Columbia River, 1985-1991 Final Report
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 105
Book Description
White sturgeon (Acipenser transmontanus) are a long-lived, primitive fish species which forage primarily along the river bottom of large river systems in the Pacific Northwest. Historically, as an anadromous species, they could distribute downstream to feed in the rich estuary or marine areas and then migrate back up the river to spawn. With the historic river becoming a series of flooded impoundments, sturgeon were denied open river access, but they appear to have been able to adapt to the altered environment. White sturgeon are found throughout the Columbia River and are thought to be successfully reproducing in some of the impoundments. In those reservoirs where little or no reproduction takes place, enhancement hatcheries may be an option for use in rebuilding isolated populations. However, the degree of stock specificity that exists in the Columbia River was unknown and precluded the use of the more abundant lower river fish as a common egg source to repropagate the upper river unless genetic similarity could be demonstrated among sturgeon throughout the river system. To resolve the issue, research was conducted to determine what level of genetic differentiation exists among sturgeon in the Columbia River system, using starch gel electrophoresis to enable a baseline of population genetic structure data to be assembled. A greater diversity in electrophoretic pattern was observed in the lower portions of the river. The bulk of the qualitative variability we noted was consistent throughout all sections of the river. Some specific quantitative differences were apparent between the areas we examined. Interpretation of the results was complicated by the fact that dam construction would tend to isolate and mix stocks by preventing the migration of fish returning upstream.
Publisher:
ISBN:
Category :
Languages : en
Pages : 105
Book Description
White sturgeon (Acipenser transmontanus) are a long-lived, primitive fish species which forage primarily along the river bottom of large river systems in the Pacific Northwest. Historically, as an anadromous species, they could distribute downstream to feed in the rich estuary or marine areas and then migrate back up the river to spawn. With the historic river becoming a series of flooded impoundments, sturgeon were denied open river access, but they appear to have been able to adapt to the altered environment. White sturgeon are found throughout the Columbia River and are thought to be successfully reproducing in some of the impoundments. In those reservoirs where little or no reproduction takes place, enhancement hatcheries may be an option for use in rebuilding isolated populations. However, the degree of stock specificity that exists in the Columbia River was unknown and precluded the use of the more abundant lower river fish as a common egg source to repropagate the upper river unless genetic similarity could be demonstrated among sturgeon throughout the river system. To resolve the issue, research was conducted to determine what level of genetic differentiation exists among sturgeon in the Columbia River system, using starch gel electrophoresis to enable a baseline of population genetic structure data to be assembled. A greater diversity in electrophoretic pattern was observed in the lower portions of the river. The bulk of the qualitative variability we noted was consistent throughout all sections of the river. Some specific quantitative differences were apparent between the areas we examined. Interpretation of the results was complicated by the fact that dam construction would tend to isolate and mix stocks by preventing the migration of fish returning upstream.
Columbia River System Operation Review (SOR)
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 306
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 306
Book Description
Energy Research Abstracts
Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 754
Book Description
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 754
Book Description
Swan Falls Instream Flow Study
Author: Donald R. Anglin
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 58
Book Description
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 58
Book Description
Columbia and Snake Rivers, 1992 Salmon Flow Measures (ID,OR,WA), Options Analysis Document
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 558
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 558
Book Description
Stock Analysis of White Sturgeon in the Columbia River
Author: Ann L. Setter
Publisher:
ISBN:
Category : White sturgeon
Languages : en
Pages : 128
Book Description
Publisher:
ISBN:
Category : White sturgeon
Languages : en
Pages : 128
Book Description
Proposed Issuance of Multiple Species Incidental Take Permits Or 4(d) Rules Covering the Washington State Forest Practices Habitat Conservation Plan
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 1084
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 1084
Book Description
Biology, Management, and Protection of North American Sturgeon
Author: Webster Van Winkle
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 284
Book Description
This multi-authored symposium volume addresses the vulnerability and continuing decline of numerous sturgeon species and stocks and the intense efforts to manage and protect them. It presents timely, accessible, and directly applicable biological and ecological research leading to more effective conservation and management of North American salmon. Written by scientists, resource managers, and electric utility industry personnel with a shared interest in sturgeon biology and ecology, management, and protection, this book includes life history characteristics relevant to population dynamics, viability, and persistence; upstream and downstream migratory behavior, habitat requirements and local movement; passage technologies; and conservation management and stock enhancement. Most major sturgeon species in America are covered, including shortnose, Atlantic, Gulf, lake and green sturgeon.
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 284
Book Description
This multi-authored symposium volume addresses the vulnerability and continuing decline of numerous sturgeon species and stocks and the intense efforts to manage and protect them. It presents timely, accessible, and directly applicable biological and ecological research leading to more effective conservation and management of North American salmon. Written by scientists, resource managers, and electric utility industry personnel with a shared interest in sturgeon biology and ecology, management, and protection, this book includes life history characteristics relevant to population dynamics, viability, and persistence; upstream and downstream migratory behavior, habitat requirements and local movement; passage technologies; and conservation management and stock enhancement. Most major sturgeon species in America are covered, including shortnose, Atlantic, Gulf, lake and green sturgeon.
Status and Habitat Requirements of White Sturgeon Populations in the Columbia River Downstream from McNary Dam, 1986-1987 Annual Report
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 64
Book Description
Measure 804(e)(8) of the Northwest Power Planning Council (NPPC) Fish and Wildlife Program states that Bonneville Power Administration (BPA) ''shall fund research to determine the impacts of development and operation of the hydroelectric power system on sturgeon in the Columbia River Basin ... '' In June 1985, BPA sponsored a workshop to define and list in priority order research needs in the basin (Fickeisen 1985a). In December 1985, BPA submitted a research program implementation plan (Fickeisen 1985b) to the NPPC. The purpose of the plan is to provide guidance for conducting research necessary to address four objectives identified by regional fishery interests for protecting, mitigating and enhancing white sturgeon populations in the Columbia River basin. The plan's objectives are: (1) Assess the current status of Columbia River basin white sturgeon stocks. (2) Provide the basis to evaluate the need for protection, mitigation and enhancement of white sturgeon in the Columbia River system. (3) Provide information that can be used to evaluate potential methods of protection, mitigation and enhancement of existing stocks. (4) Provide tools to assess the effectiveness of protection, mitigation and enhancement efforts.
Publisher:
ISBN:
Category :
Languages : en
Pages : 64
Book Description
Measure 804(e)(8) of the Northwest Power Planning Council (NPPC) Fish and Wildlife Program states that Bonneville Power Administration (BPA) ''shall fund research to determine the impacts of development and operation of the hydroelectric power system on sturgeon in the Columbia River Basin ... '' In June 1985, BPA sponsored a workshop to define and list in priority order research needs in the basin (Fickeisen 1985a). In December 1985, BPA submitted a research program implementation plan (Fickeisen 1985b) to the NPPC. The purpose of the plan is to provide guidance for conducting research necessary to address four objectives identified by regional fishery interests for protecting, mitigating and enhancing white sturgeon populations in the Columbia River basin. The plan's objectives are: (1) Assess the current status of Columbia River basin white sturgeon stocks. (2) Provide the basis to evaluate the need for protection, mitigation and enhancement of white sturgeon in the Columbia River system. (3) Provide information that can be used to evaluate potential methods of protection, mitigation and enhancement of existing stocks. (4) Provide tools to assess the effectiveness of protection, mitigation and enhancement efforts.