Analysis of potential impacts to resident fish from Columbia River System Operation alternatives

Geist, David R.; Vail, L.W.; Epstein, Daniel

doi:10.1007/bf01204012

Cited by 6 publications

(7 citation statements)

References 7 publications

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“…Meffe (1992) warned about negative genetic changes to natural populations of Pacific salmon as a result of major, hatchery-rearing programs meant to replace wild stocks diminished by hydroelectric and other impacts on large rivers. Resident (nonanadromous) fish are also affected (Geist et al 1996). Possibilities of operating the Columbia system in a more benign way are currently being examined (e.g., Wernstedt and Paulsen 1995;Geist et al 1996) Tucurai Dam, Tocantins River, Brazil…”

Section: Type Of Habitat Alteration Location Effects Commentsmentioning

confidence: 99%

“…Resident (nonanadromous) fish are also affected (Geist et al 1996). Possibilities of operating the Columbia system in a more benign way are currently being examined (e.g., Wernstedt and Paulsen 1995;Geist et al 1996) Tucurai Dam, Tocantins River, Brazil…”

Section: Type Of Habitat Alteration Location Effects Commentsmentioning

confidence: 99%

“…Among populations, loss of genetic variability leads to convergence to one type and a narrow range of options for that species. Habitat simplification seriously threatens the native fish and other fauna of major river systems that have had extensive hydroelectric development (e.g., Brousseau and Goodchild 1989;Carlson and Muth 1989;Ebel et al 1989;Hesse et al 1989;Natarajan 1989;Fruget 1992;Beamesderfer et al 1995;Geist et al 1996; Table 7). Other kinds of river development are usually also involved, but hydroelectric development is a major contributor to the problem.…”

Section: Type Of Habitat Alteration Location Effects Commentsmentioning

confidence: 99%

“…The resident Acipenser transmontanus has been listed as endangered under the U.S.A. Endangered Species Act (Geist et al 1996) Upper Volga River, Russian Federation…”

Section: Type Of Habitat Alteration Location Effects Commentsmentioning

confidence: 99%

See 3 more Smart Citations

Large-scale impacts of hydroelectric development

Rosenberg¹,

Berkes²,

Bodaly³

et al. 1997

Environ. Rev.

234

185

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The substantial size of some hydroelectric projects and the extensive total surface area covered by reservoirs globally require that research determining the impacts of these developments be done at ever-increasing spatial and temporal scales. As a consequence of this research, new views are emerging about the spatial extent and longevity of the environmental and social impacts of such developments. New findings challenge the notion of hydroelectric development as a benign alternative to other forms of power generation. This review examines the intertwined environmental and social effects of methylmercury bioaccumulation in the food web, emission of greenhouse gases from reservoirs, downstream effects of altered flows, and impacts on biodiversity, each of which operates at its own unique spatial and temporal scales. Methylmercury bioaccumulation occurs at the smallest spatial and temporal scales of the four impacts reviewed, whereas downstream effects usually occur at the largest scales. Greenhouse gas emissions, the newest surprise connected with large-scale hydroelectric development, are relatively short term but eventually may have important global-scale consequences. Limitation of biodiversity by hydroelectric development usually occurs at intermediate spatial and temporal scales. Knowledge developed from working at expanded spatial and temporal scales should be an important part of future decision making for large-scale hydroelectric development.

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Section: Type Of Habitat Alteration Location Effects Commentsmentioning

confidence: 99%

Section: Type Of Habitat Alteration Location Effects Commentsmentioning

confidence: 99%

Section: Type Of Habitat Alteration Location Effects Commentsmentioning

confidence: 99%

“…The resident Acipenser transmontanus has been listed as endangered under the U.S.A. Endangered Species Act (Geist et al 1996) Upper Volga River, Russian Federation…”

Section: Type Of Habitat Alteration Location Effects Commentsmentioning

confidence: 99%

See 2 more Smart Citations

Large-scale impacts of hydroelectric development

Rosenberg¹,

Berkes²,

Bodaly³

et al. 1997

Environ. Rev.

234

185

View full text Add to dashboard Cite

show abstract

“…Consequently, they offer a tool for use by policy makers in balancing the needs of salmon downstream against the need to maintain high pool elevations to enhance reservoir productivity for the benefit of resident fishes, as well as the needs of other water users. A recent study conducted for NMFS included a set of findings of a Steering Committee which reported that "There are legitimate biological trade-offs relating to flow augmentation for migrating salmon vs. protection for resident fish populations in reservoirs" (Wright, 1996 Geist et al. (1996) developed a spreadsheet simulation model to examine drawdown alternatives and their respective tradeoffs in benefits and costs among river uses/resource groups, among species, and among reservoirs..…”

Section: Reviewed Effects Of Altered Hydrographs Caused By Hungrymentioning

confidence: 99%

Ecological impacts of the flow provisions of the biological opinion for endangered Snake River salmon on resident fishes in the Hungry Horse, and Libby systems in Montana, Idaho, and British Columbia

1997

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Biological Opinion on resident fishes in the Hungry Horse/Libby systems, including the potential of the provisions to increase the probability of their extinction". Specifics of the IS AB review process are presented in Appendix 1. The ISAB noted that the two questions are couched in the language of the Endangered Species Act and reflect the region's ongoing policy struggles in this area. They are not forthright scientific questions, when considered in an ecosystem context. The questions focus on extinction of reservoir fishes, which undoubtedly have persisted, and in some cases likely even proliferated, in these reservoirs since they were built, rather than focusing on the negative impacts of headwater drafting on the ecology of all upstream waters affected by the drafting. Finally, these

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Fish response to modified flow regimes in regulated rivers: research methods, effects and opportunities

Murchie

Hair

Pullen

et al. 2008

River Research & Apps

181

160

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Globally, rivers are increasingly being subjected to various levels of physical alteration and river regulation to provide humans with services such as hydropower, freshwater, flood control, irrigation and recreation. Although river regulation plays an important role in modern society, there are potential consequences which may negatively affect fish and fish habitat. While much effort has been expended examining the response of fish to fluctuating flow regimes in different systems, there has been little in the way of a comprehensive synthesis. In an effort to better understand the effects of river regulation on fish and fish habitat, we conducted a systematic review of available literature with three goals: (1) summarize the various research methodologies used by regulated river researchers, (2) summarize the effects found on fish and fish habitat and (3) identify opportunities for future research. The results of the synthesis indicate that a wide variety of methodologies are being employed to study regulated river science, yet there is a gap in incorporating methodologies that examine effects on fish at a cellular level or those techniques that are interdisciplinary (e.g. behaviour and physiology). There is a clear consensus that modified flow regimes in regulated rivers are affecting fish and fish habitat, but the severity and direction of the response varies widely. Future study designs should include methods that target all biological levels of fish response, and in which detailed statistical analyses can be performed. There is also a need for more rigorous study designs including the use of appropriate controls and replicates. Data on physical variables that co-vary with flow should be collected and examined to add explanatory power to the results. Increased multi-stakeholder collaborations provide the greatest promise of balancing ecological concerns with economic needs.

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Analysis of potential impacts to resident fish from Columbia River System Operation alternatives

Cited by 6 publications

References 7 publications

Large-scale impacts of hydroelectric development

Large-scale impacts of hydroelectric development

Ecological impacts of the flow provisions of the biological opinion for endangered Snake River salmon on resident fishes in the Hungry Horse, and Libby systems in Montana, Idaho, and British Columbia

Fish response to modified flow regimes in regulated rivers: research methods, effects and opportunities

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