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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 × Citation Citation Abstract Copy Title: Summary of information on aquatic biota and their habitats in the Willamette Basin, Oregon, through 1995 Author: National Water-Quality Assessment Program (U.S.), Altman, Bob, Henson, Colleen M., Waite, Ian R., U.S. Fish and Wildlife Service, Geological Survey (U.S.) 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 three taxonomic groups--algae, macroinvertebrates, and fish--and, to a lesser degree, other selected semi-aquatic taxa (i.e., taxa frequenting but not living wholly in water), including amphibians and reptiles, birds, and mammals, (2) the types of aquatic and riparian habitat that support and influence aquatic communities and their biotic constituents, (3) the natural and human-associated impacts on that habitat and associated biological communities, amd (4) the levels of enviroinmental contaminants to which biological communities and specific biota are exposed. The information in this report is intended to aid in the identification of data gaps relative to taxa and geographic areas, and to stimulate collaboration and increase coordination in present and future ecological research in the Willamette Basin. Title: Summary of information on aquatic biota and their habitats in the Willamette Basin, Oregon, through 1995 Author: National Water-Quality Assessment Program (U.S.), Altman, Bob, Henson, Colleen M., Waite, Ian R., U.S. Fish and Wildlife Service, Geological Survey (U.S.) 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 three taxonomic groups--algae, macroinvertebrates, and fish--and, to a lesser degree, other selected semi-aquatic taxa (i.e., taxa frequenting but not living wholly in water), including amphibians and reptiles, birds, and mammals, (2) the types of aquatic and riparian habitat that support and influence aquatic communities and their biotic constituents, (3) the natural and human-associated impacts on that habitat and associated biological communities, amd (4) the levels of enviroinmental contaminants to which biological communities and specific biota are exposed. The information in this report is intended to aid in the identification of data gaps relative to taxa and geographic areas, and to stimulate collaboration and increase coordination in present and future ecological research in the Willamette Basin. Close

• 2. [Article] Inorganic chemistry of water and bed sediment in selected tributaries of the South Umpqua River, Oregon, 1998

  This report presents results of an investigation of water and streambed-sediment quality in selected tributaries of the South Umpqua River. Concentrations of inorganic constituents in water (major and ...

  Citation × Citation Citation Abstract Copy Title: Inorganic chemistry of water and bed sediment in selected tributaries of the South Umpqua River, Oregon, 1998 Author: Hinkle, Stephen R., Geological Survey (U.S.) This report presents results of an investigation of water and streambed-sediment quality in selected tributaries of the South Umpqua River. Concentrations of inorganic constituents in water (major and minor ions, nutrients, and trace elements) and streambed sediment (primarily trace elements), along with standard field parameters, are tabulated for samples collected at 10 sites. Aqueous trace-element concentrations are compared with U.S. Environmental Protection Agency (USEPA) criterion continuous concentrations for the protection of aquatic life. Streambed-sediment trace-element concentrations are compared with Canadian sediment quality guidelines for the protection of aquatic life and, to provide a frame of reference, with previously collected streambed-sediment data from the Willamette Basin in western Oregon. Title: Inorganic chemistry of water and bed sediment in selected tributaries of the South Umpqua River, Oregon, 1998 Author: Hinkle, Stephen R., Geological Survey (U.S.) This report presents results of an investigation of water and streambed-sediment quality in selected tributaries of the South Umpqua River. Concentrations of inorganic constituents in water (major and minor ions, nutrients, and trace elements) and streambed sediment (primarily trace elements), along with standard field parameters, are tabulated for samples collected at 10 sites. Aqueous trace-element concentrations are compared with U.S. Environmental Protection Agency (USEPA) criterion continuous concentrations for the protection of aquatic life. Streambed-sediment trace-element concentrations are compared with Canadian sediment quality guidelines for the protection of aquatic life and, to provide a frame of reference, with previously collected streambed-sediment data from the Willamette Basin in western Oregon. Close