Cooperative Fish and Wildlife Research Units Program: California
Education, Research and Technical Assistance for Managing Our Natural Resources

This study is part of a larger multidisciplinary project investigating stream ecosystem response to riparian management an includes scientists from Green Diamond Resource Company, Humboldt State University, Oregon State University and the U.S. Forest Service. The study will be conducted on Green Diamond lands in tributaries of the lower Klamath River in coastal northern California. Sites will be chosen that differ in percentage of coniferous riparian trees, but which are similar in confluence with a fish-bearing reach. Objectives of this study are to: 1) Quantify the magnitude, composition, and energy content of invertebrate subsidies of terrestrial and aquatic origin from Class II (fish-less) streams to downstream fish-bearing waters at different times of year and from streams differing in riparian canopy; and 2) Evaluate use of these invertebrate subsidies by fish and their potential contribution to fish growth.