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National Water Quality Assessment (NAWQA)
Remove constraint National Water Quality Assessment (NAWQA)
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Geological Survey (U.S.)
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National Water-Quality Assessment Program (U.S.)
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U.S. Fish and Wildlife Service
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Aquatic biology
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Aquatic ecology -- Oregon --Willamette River Watershed
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Aquatic ecosystems
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Biological communities
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Metals
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Pesticides
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Thematic Classification -- Land and People -- Land Use
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1. [Article] Summary of information on aquatic biota and their habitats in the Willamette Basin, Oregon, through 1995
This report reviews and summarizes available information on aquatic biological communities in the Willamette Basin through 1995. Specifically, the report describes (1) the distribution, abndance, and trends ...Citation