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Major-ion, nutrient, and trace-element concentrations in the Steamboat Creek Basin, Oregon, 1996

This report presents the concentrations of major ions, nutrients, and trace elements in water and bottom sediments collected in the four-tributaries during the low-flow condition of September 9-13, 1996....
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 of...

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