Search

Search Results

• 1. [Article] Quantifying physical habitat in wadeable streams : surface waters

  We describe concepts, rationale, and analytical procedures for characterizing physical habitat in wadeable streams based on raw data generated from methods similar or equal to those of Kaufmann and Robison ...

  Citation × Citation Citation Abstract Copy Title: Quantifying physical habitat in wadeable streams : surface waters Author: Robison, E. George, Seeliger, Curt, Levine, Paul, Peck, David V., Kaufmann, Phillip R. We describe concepts, rationale, and analytical procedures for characterizing physical habitat in wadeable streams based on raw data generated from methods similar or equal to those of Kaufmann and Robison (in PB99-139156). We provide guidance for calculating measures or indices of stream size and gradient, sinuosity, substrate size and stability, habitat complexity and cover, woody debris size and abundance, residual pool dimensions and frequency, riparian vegetation cover and structure, anthropogenic disturbances, and channel-riparian interaction. We evaluated sampling precision of field habitat survey methods employed by EMAP in several hundred streams in Oregon and the Mid-Atlantic region, comparing variance among streams ('signals') with variance between repeat stream visits (measurement 'noise'). The final measure of the utility of a habitat approach is whether it is useful for interpreting controls on biota or impacts of human activity. Title: Quantifying physical habitat in wadeable streams : surface waters Author: Robison, E. George, Seeliger, Curt, Levine, Paul, Peck, David V., Kaufmann, Phillip R. We describe concepts, rationale, and analytical procedures for characterizing physical habitat in wadeable streams based on raw data generated from methods similar or equal to those of Kaufmann and Robison (in PB99-139156). We provide guidance for calculating measures or indices of stream size and gradient, sinuosity, substrate size and stability, habitat complexity and cover, woody debris size and abundance, residual pool dimensions and frequency, riparian vegetation cover and structure, anthropogenic disturbances, and channel-riparian interaction. We evaluated sampling precision of field habitat survey methods employed by EMAP in several hundred streams in Oregon and the Mid-Atlantic region, comparing variance among streams ('signals') with variance between repeat stream visits (measurement 'noise'). The final measure of the utility of a habitat approach is whether it is useful for interpreting controls on biota or impacts of human activity. Close

• 2. [Article] Trask River watershed analysis : final report, August 2003

  Recommendations are provided in this watershed analysis to identify actions and management decisions on the part of BLM that might improve watershed health in the Trask River watershed.

  Citation × Citation Citation Abstract Copy Title: Trask River watershed analysis : final report, August 2003 Author: E&S Environmental Chemistry, Inc., Sullivan, Timothy J., Snyder, Kai U., Oregon. Dept. of Forestry, Raymond, Richard B., Gilbert, Erin H., United States. Bureau of Land Management, Moore, Deian L. Recommendations are provided in this watershed analysis to identify actions and management decisions on the part of BLM that might improve watershed health in the Trask River watershed. Title: Trask River watershed analysis : final report, August 2003 Author: E&S Environmental Chemistry, Inc., Sullivan, Timothy J., Snyder, Kai U., Oregon. Dept. of Forestry, Raymond, Richard B., Gilbert, Erin H., United States. Bureau of Land Management, Moore, Deian L. Recommendations are provided in this watershed analysis to identify actions and management decisions on the part of BLM that might improve watershed health in the Trask River watershed. Close

• 3. [Article] Yaquina and Alsea River Basins Estuarine Wetland Site Prioritization Project : final report

  This project, commissioned in 1998, is part of the MidCoast Watersheds Council's efforts to better understand the status and condition of the area's natural resources and to work with interested landowners ...

  Citation × Citation Citation Abstract Copy Title: Yaquina and Alsea River Basins Estuarine Wetland Site Prioritization Project : final report Author: Brophy, Laura This project, commissioned in 1998, is part of the MidCoast Watersheds Council's efforts to better understand the status and condition of the area's natural resources and to work with interested landowners to enhance and protect important areas. Title: Yaquina and Alsea River Basins Estuarine Wetland Site Prioritization Project : final report Author: Brophy, Laura This project, commissioned in 1998, is part of the MidCoast Watersheds Council's efforts to better understand the status and condition of the area's natural resources and to work with interested landowners to enhance and protect important areas. Close