Historical changes in fish habitat for select river basins of eastern Oregon and Washington
From 1934 to 1942 the Bureau of Fisheries surveyed more than 8,000 km of streams in the Columbia River basin to determine the condition of fish habitat. Changes in fish habitat over time were evaluated by resurveying a subset of the historically surveyed streams in the Tucannon, Asotin, Grande Ronde...
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Veröffentlicht in: | Northwest science 1994, Vol.68 (special), p.36-53 |
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