Summary

Description

1) The purpose of this project is to assist the NMFS Regional Office with the Oregon Water Quality Criteria Biological Opinion. 2) Lyndal Johnson (NFWSC FTE) is the project manager, and the primary staff doing the work are Julann Spromberg (NMFS Term) and David Baldwin (NMFS FTE). 3) The project involves literature review and population modeling to estimate water concentrations of copper, cadmium, and ammonia associated with increased mortality or reduced growth in juvenile salmonids. 4) Specific products to be produced include sections for the NMFS Biological opinion. A manuscript in a peer-reviewed journal is also a possibility. 5) Specific audiences include but are not limited to the NMFS Regional Office, EPA, and other federal, state, and local agencies interested in water quality management. 6) This is a stand-alone project. 7) This is an ongoing project; the majority of work has been completed, but some review and revision is still occurring. Modeled effect on population growth rate of contaminant impacts on growth and mortality at proposed water quality standards.