Published By National Oceanic and Atmospheric Administration, Department of Commerce
Issued about 9 years ago
Summary
Description
Monitoring project designed to evaluate effectiveness of Natural Drainage Systems built by Seattle Public Utilities in the Piper Creek watershed. We collected data on three groups of stream organisms: fish, benthic invertebrates, and periphyton (the layer of biofilm covering the stream benthos). Benthic invertebrate and periphyton data were collected annually in the early fall (September). Fish surveys were conducted in the spring and fall for 2006-2007, and thereafter in September only. Fish movement was monitored continuously with a combination of mobile and fixed-array Passive Integrated Transponder (PIT)-tag antennas beginning in the summer of 2007. Fish (density, biomass, movement, growth, diet), benthic invertebrates, periphyton