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Status review for Snake River spring and summer chinook salmon
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1991
[PDF-18.25 MB]
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Description:Spring, summer, and fall chinook salmon (Oncorhynchus tshawytscha) are native to the Snake River, the largest tributary of the Columbia River. Historically, these fish were abundant throughout most of this large, complex drainage. From the latter 1800s until the present, a variety of factors (including overfishing, irrigation diversions, logging, mining, grazing, obstacles to migration, hydropower development, and questionable management practices and decisions) have led to the current depressed status of these populations. This situation led Oregon Trout, Oregon Natural Resources Council, Northwest Environmental Defense Center, the Idaho and Oregon Chapters of the American Fisheries Society, and American Rivers to petition the National Marine Fisheries Service (NMFS) to list all three forms of Snake River chinook salmon as threatened or endangered "species" under the Endangered Species Act (ESA). This report summarizes the review of the status of Snake River spring and summer chinook salmon conducted by the NMFS Northwest Region Biological Review Team (BRT).
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Rights Information:CC0 Public Domain
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Compliance:Submitted
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