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Keyword: decline of aquatic ecosystems

Historical changes in pool habitats in the Columbia River basin

Publications Posted on: May 19, 2015
An historical stream survey (1934-1945) was compared with current surveys (1987-1997) to assess changes in pool frequencies in the Columbia River Basin. We surveyed 2267 km of 122 streams across the basin, representing a wide range of lithologies, stream sizes, land use histories, ownerships, and ecoregions.