(***WDFW Letterhead***) 2020 ESU/DPS Abundance Analysis (1. Prepared in support of GSRO’s 2020 State of the Salmon in Watersheds report.) (2. See methods here ***insert data.wa.gov url***.) (3. See raw data here ***insert data.wa.gov url***.) Thomas Buehrens Senior Research Scientist Lower Columbia Science Unit Lead Science Division, Fish Program Washington Department of Fish & Wildlife 206-715-2551 [email protected] Neala Kendall Research Scientist Statewide Quantitative Synthesis and Reporting Unit Science Division, Fish Program Washington Department of Fish & Wildlife 360-789-9950 [email protected] 1. ESU/DPS name: Lower Columbia River Coho ESU 2. Data Analysis date: 3. Trend Analysis summary statement: 4. Goal Analysis summary statement: 5. Data summary statement (availability, reliability, source): 6. Other comments: Salmon, coho (Lower Columbia River ESU) 15000 Cispus River − early and late Coho salmon Coweeman River − late Coho salmon East Fork Lewis River − early and late Coho salmon Elochoman River − late Coho salmon Grays and Chinook Rivers − late Coho salmon Kalama River − late Coho salmon Lower Cowlitz River − late Coho salmon 10000 Lower Gorge Tributaries − late Coho salmon Mill, Abernathy, and Germany Creeks − late Coho salmon North Fork Lewis River − early and late Coho salmon North Fork Toutle River − early and late Coho salmon Salmon Creek − late Coho salmon South Fork Toutle River − early and late Coho salmon Natural Origin Spawner Abundance OriginNatural Spawner Tilton River − early and late Coho salmon 5000 Upper Cowlitz River − early and late Coho salmon Upper Gorge Tributaries − late Coho salmon Washougal River − late Coho salmon 0 2005 2010 2015 2020 SPAWNINGYEAR Salmon, coho (Lower Columbia River ESU) Cispus River − early and late Coho salmon 0.050 0.025 0.000 −0.025 −0.050 2005 2010 2015 2020 Coweeman River − late Coho salmon 4000 3000 2000 1000 0 2005 2010 2015 2020 East Fork Lewis River − early and late Coho salmon 2000 1500 1000 500 0 2005 2010 2015 2020 Elochoman River − late Coho salmon 2000 Natural Origin Spawner Abundance OriginNatural Spawner 1000 0 2005 2010 2015 2020 Grays and Chinook Rivers − late Coho salmon 2000 1000 0 2005 2010 2015 2020 SPAWNINGYEAR Salmon, coho (Lower Columbia River ESU) Kalama River − late Coho salmon 500 400 300 200 100 0 2005 2010 2015 2020 Lower Cowlitz River − late Coho salmon 15000 10000 5000 0 2005 2010 2015 2020 Lower Gorge Tributaries − late Coho salmon 750 500 250 0 2005 2010 2015 2020 Mill, Abernathy, and Germany Creeks − late Coho salmon 2000 1500 Natural Origin Spawner Abundance OriginNatural Spawner 1000 500 0 2005 2010 2015 2020 North Fork Lewis River − early and late Coho salmon 3000 2000 1000 0 2005 2010 2015 2020 SPAWNINGYEAR Salmon, coho (Lower Columbia River ESU) North Fork Toutle River − early and late Coho salmon 4000 3000 2000 1000 0 2005 2010 2015 2020 Salmon Creek − late Coho salmon 2000 1500 1000 500 0 2005 2010 2015 2020 South Fork Toutle River − early and late Coho salmon 8000 6000 4000 2000 0 2005 2010 2015 2020 Tilton River − early and late Coho salmon 7500 Natural Origin Spawner Abundance OriginNatural Spawner 5000 2500 0 2005 2010 2015 2020 Upper Cowlitz River − early and late Coho salmon 8000 6000 4000 2000 0 2005 2010 2015 2020 SPAWNINGYEAR Salmon, coho (Lower Columbia River ESU) Upper Gorge Tributaries − late Coho salmon 750 500 250 0 2005 2010 2015 2020 Washougal River − late Coho salmon 1000 500 0 Natural Origin Spawner Abundance OriginNatural Spawner 2005 2010 2015 2020 SPAWNINGYEAR Lower Columbia River Coho Upper Gorge Tributaries − late Coho salmon North Fork Lewis River − early and late Coho salmon Coweeman River − late Coho salmon Mill, Abernathy, and Germany Creeks − late Coho salmon Lower Cowlitz River − late Coho salmon South Fork Toutle River − early and late Coho salmon Lower Gorge Tributaries − late Coho salmon North Fork Toutle River − early and late Coho salmon East Fork Lewis River − early and late Coho salmon Elochoman River − late Coho salmon Upper Cowlitz River − early and late Coho salmon Washougal River − late Coho salmon Kalama River − late Coho salmon Grays and Chinook Rivers − late Coho salmon 0 100 200 5 Year Geomean % of Recovery Goal Lower Columbia River Coho Upper Gorge Tributaries − late Coho salmon Kalama River − late Coho salmon Mill, Abernathy, and Germany Creeks − late Coho salmon East Fork Lewis River − early and late Coho salmon North Fork Lewis River − early and late Coho salmon Lower Gorge Tributaries − late Coho salmon Elochoman River − late Coho salmon North Fork Toutle River − early and late Coho salmon Lower Cowlitz River − late Coho salmon Grays and Chinook Rivers − late Coho salmon Coweeman River − late Coho salmon South Fork Toutle River − early and late Coho salmon Upper Cowlitz River − early and late Coho salmon Washougal River − late Coho salmon −5 −4 −3 −2 −1 0 Trend Since ESA Listing (% change per year).