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 : 282
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 282
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
Government Reports Annual Index
Author:
Publisher:
ISBN:
Category : Research
Languages : en
Pages : 1388
Book Description
Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Publisher:
ISBN:
Category : Research
Languages : en
Pages : 1388
Book Description
Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
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
Government Reports Announcements & Index
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1494
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1494
Book Description
Recommendations to Amend the Resident Fish and Wildlife Sections of the Columbia River Basin Fish and Wildlife Program
Author:
Publisher:
ISBN:
Category : Fish habitat improvement
Languages : en
Pages : 412
Book Description
Publisher:
ISBN:
Category : Fish habitat improvement
Languages : en
Pages : 412
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
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.