Northwest Fisheries Science Center

Viability Status of Oregon Salmon and Steelhead Populations in the Willamette and Lower Columbia Basins

Viability Status of Oregon Salmon and Steelhead Populations in the Willamette and Lower Columbia Basins

Final Version, September, 2007
By Paul McElhany, Mark Chilcote, Jim Myers and Ray Beamesderfer

About the report…

This report (download below) is an assessment of the current status of salmon and steelhead in the Willamette and Lower Columbia River Basins of Oregon. The assessment was conducted by biologist working for and with the NOAA Northwest Fisheries Science Center and the Oregon Department of Fish and Wildlife. The report was developed as part of the Oregon salmon and steelhead recovery planning process and is referenced in the Oregon ESA recovery plans (http://www.dfw.state.or.us/fish/esa/lower-columbia/).

Download Report PDFs: (for accessibility issues, please contact Paul McElhany 206-860-5608)

Entire Report (29,382 kb)

Individual Report Sections:

Part 1: Introduction and Methods (429 kb)
Part 2: Lower Columbia River Chinook (3,673 kb)
Part 3: Columbia River Chum (259 kb)
Part 4: Lower Columbia River Coho (5,454 kb)
Part 5: Lower Columbia River Steelhead (3,653 kb)
Part 6: Upper Willamette River Chinook (5,194 kb)
Part 7: Upper Willamette River Steelhead (3,697 kb)
Appendix A: Random Multinomial Finite Sampling Method (149 kb)
Appendix B: Oregon Abundance Time Series (1,352 kb)
Appendix C: Washington Abundance Time Series (1,035 kb)
Appendix D: Viability Curve Analysis (72 kb)
Appendix E: Conservation Assessment and Planning Model (147 kb)
Appendix F: PopCycle Model Description (197 kb)