Monitor Natural Escapement and Productivity of John Day Basin Spring Chinook Project # Oregon Department of Fish & Wildlife James Ruzycki Richard Carmichael Wayne Wilson Terra Lang Schultz Derek Wiley
Salmonid Productivity, Escapement, Trend, and Habitat Monitoring in the John Day River Basin Project # Oregon Department of Fish & Wildlife James Ruzycki Richard Carmichael Wayne Wilson Terra Lang Schultz Derek Wiley
Columbia Plateau
Objectives Provide accurate and precise status and trend data for Chinook and steelhead of the John Day River basin. –Escapement estimates –Population characteristics »Age composition »Distribution –Smolt-to-adult returns (SAR) –Smolt production –Habitat monitoring
Methods Spawning ground surveys Escapement Distribution Age composition Stray rates Seining and Rotary Screw Traps SAR –PIT tagging –Dam detections Smolt Production –Mark recapture Steelhead Status EMAP ODFW Aquatic Inventories
Smolt collection points
Results Chinook spawning ground surveys Documented redds in new locations Trend monitoring Basin-wide escapement estimates Age structure GIS database Stray rates
Results Chinook spawning ground surveys Documented redds in new locations Trend monitoring Basin-wide escapement estimates Age structure GIS database Stray rates
Spring Chinook Escapement Number of Redds YearNorth ForkMiddle ForkMainstemTotalEscapement ,8795, , ,8635, , ,9555, ,4174,251
Results Chinook spawning ground surveys Documented redds in new locations Trend monitoring Basin-wide escapement estimates Age structure GIS database Stray rates
Adult Chinook Size Distribution
Chinook % Age Composition YearAge 3Age 4Age
Results Chinook spawning ground surveys Documented redds in new locations Trend monitoring Basin-wide escapement estimates Age structure GIS database Stray rates
Results Chinook spawning ground surveys Documented redds in new locations Trend monitoring Basin-wide escapement estimates Age structure GIS database Stray rates
YearCarcassesMarked Fish% , , Chinook Strays
Results Smolt seining and trapping SAR from PIT tagging Basin-wide production Age structure of steelhead smolts
Spring Chinook Smolt-to-Adult Returns # Returning Adults CohortTag Year# taggedAge 3Age 4Age 5SAR , % , % , , ,017
Summer Steelhead Smolt-to-Adult Returns # Returning Adults Tag Year# tagged SAR % ,668
Results Smolt seining and trapping SAR from PIT tagging Basin-wide production Age structure of steelhead smolts
Smolt Production YearAbundance95% CLs ,92279, , ,09790, , ,39476,739-91,734
Results Smolt seining and trapping SAR from PIT tagging Basin-wide production Age structure of steelhead smolts
Results Steelhead Status EMAP sampling protocol Spawner surveys Juvenile surveys Habitat ODFW Aquatic Inventories
Steelhead EMAP Sample Sites
Conclusions Monitoring project Subbasin-wide Columbia Basin comparisons CSS Long-term dataset Chinook and steelhead