[PDF] Salmon In The Columbia River Basin eBook

Author : National Research Council (U.S.). Committee on Water Resources Management, Instream Flows, and Salmon Survival in the Columbia River Basin
Publisher : National Academy Press
Page : 274 pages
File Size : 30,42 MB
Release : 2004
Category : Business & Economics
ISBN :

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Book News, Inc., Portland, OR (booknews.com).

Author : National Research Council
Publisher : National Academies Press
Page : 260 pages
File Size : 37,90 MB
Release : 2004-07-27
Category : Technology & Engineering
ISBN : 0309166268

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Flows of the Columbia River, although modified substantially during the twentieth century, still vary considerably between seasons and between years. Lowest flows tend to occur during summer months when demand for irrigation water is at its highest and when water temperatures are greatest. These periods of low flows, high demand, and high temperature are critical periods for juvenile salmon migrating downstream through the Columbia River hydropower system. Although impacts on salmon of any individual water withdrawal may be small, the cumulative effects of numerous withdrawals will affect Columbia River flows and would pose increased risks to salmon survival. The body of scientific knowledge explaining salmon migratory behavior and physiology is substantial, but imperfect, and decision makers should acknowledge this and be willing to take action in the face of uncertainties. In order to provide a more comprehensive water permitting process, the State of Washington, Canada, other basin states, and tribal groups should establish a basin-wide forum to consider future water withdrawal application permits. If the State of Washington issues additional permits for water withdrawals from the Columbia River, those permits should contain provisions that allow withdrawals to be curtailed during critical high-demand periods.

Author : John M. Volkman
Publisher :
Page : 268 pages
File Size : 22,68 MB
Release : 1997
Category : Columbia River
ISBN :

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Report to the Western Water Policy Review Advisory Commission.

Author : Ned Smith
Publisher : DIANE Publishing
Page : 65 pages
File Size : 48,30 MB
Release : 1999-04
Category :
ISBN : 0788177834

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Columbia River Basin salmon runs were once the world's largest. By 1996, however, returning adult salmon had been greatly reduced in number. This report addresses how well the U.S. Army Corps of Engineers is implementing its Columbia River Fish Mitigation program. Provides information on (1) the Corps' decision-making process for identifying, setting priorities for, & funding actions to help the recovery of salmon runs, & (2) whether the Corps has been completing its fish mitigation actions on schedule & within budget. Determines why the Corps had not entered into an agreement with the Bonneville Power Administration for the cost of operating their dams in the Basin. Charts & tables.

Author : Richard N. Williams
Publisher : Elsevier
Page : 720 pages
File Size : 40,26 MB
Release : 2005-11-21
Category : Science
ISBN : 0080454305

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Return to the River will describe a new ecosystem-based approach to the restoration of salmon and steelhead populations in the Columbia River, once one of the most productive river basins for anadromous salmonids on the west coast of North America. The approach of this work has broad applicability to all recovery efforts throughout the northern hemisphere and general applicability to fisheries and aquatic restoration efforts throughout the world. The Pacific Northwest is now embroiled in a major public policy debate over the management and restoration of Pacific salmon. The outcome of the debate has the potential to affect major segments of the region's economy - river transportation, hydroelectric production, irrigated agriculture, urban growth, commercial and sport fisheries, etc. This debate, centered as it is on the salmon in all the rivers, has created a huge demand for information. The book will be a powerful addition to that debate. A 15 year collaboration by a diverse group of scientists working on the management and recovery of salmon, steelhead trout, and wildlife populations in the Pacific Northwest Includes over 200 figures, with four-color throughout the book Discusses complex issues such as habitat degradation, juvenile survival through the hydrosystem, the role of artificial production, and harvest reform

Author : Columbia Basin Fish and Wildlife Authority
Publisher :
Page : 560 pages
File Size : 26,94 MB
Release : 1991
Category : Anadromous fishes
ISBN :

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"This particular part of the Integrated System Plan addresses the role of supplementation as one of the strategies that may be used for restoring natural production of anadromous salmonid populations in the Columbia River Basin."--Introduction