Grande Ronde Supplementation Lostine River: Operation and Maintenance and Monitoring and Evaluation Sponsor: Nez Perce Tribe Project Number: Contract Number: Project Leaders: Rick Zollman (O&M) Peter Cleary (M&E) Funding Agency: Bonneville Power Administration

Population Status

Production Goals Re-establish and supplement the natural population without a phenotypic or genetic change in the natural population Re-establish and supplement the natural population without a phenotypic or genetic change in the natural population Produce 116,000 conventional smolts Produce 116,000 conventional smolts Produce 134,000 captive smolts Produce 134,000 captive smolts

Research M&E Goals Establish baseline information on Lostine River spring Chinook salmon Establish baseline information on Lostine River spring Chinook salmon Monitor and evaluate the effectiveness of supplementation Monitor and evaluate the effectiveness of supplementation Provide science based recommendations for management and policy considerations Provide science based recommendations for management and policy considerations

M&E Objectives Project planning and coordination Project planning and coordination Collect baseline information on environmental conditions in the Lostine River Collect baseline information on environmental conditions in the Lostine River Collect and analyze baseline information on abundance, genetic and life history characteristics of Lostine River natural and hatchery spring Chinook salmon Collect and analyze baseline information on abundance, genetic and life history characteristics of Lostine River natural and hatchery spring Chinook salmon

M&E Objectives (continued) Monitor and evaluate operation of adult collections for adverse impacts to resident and/or anadromous fish populations in the Lostine River Monitor and evaluate operation of adult collections for adverse impacts to resident and/or anadromous fish populations in the Lostine River Monitor and evaluate conventional and captive broodstock smolt production Monitor and evaluate conventional and captive broodstock smolt production Communicate and share results with co- managers Communicate and share results with co- managers

Coordination and Co-Management Accomplishments Participation in TOT meetings for coordination with the Grande Ronde Basin Spring Chinook Captive Broodstock Program (# ) Participation in TOT meetings for coordination with the Grande Ronde Basin Spring Chinook Captive Broodstock Program (# ) Participation in AOP meetings for coordination of fish rearing and mitigation needs with the LSRCP Participation in AOP meetings for coordination of fish rearing and mitigation needs with the LSRCP Landowner coordination for irrigation water needed during adult returns Landowner coordination for irrigation water needed during adult returns

Weir Management: The Sliding Scale Escapement to Mouth (H +N) H to N Ratio (%) N Adults Retained (%) H Adults Retained (%) H Above the Weir (%) N B.stock (%) <250Any4040N/AN/A Any >500Any20NA5030

Smolts Produced for Supplementation

Migration Performance Smolt Survival

Lostine River Escapement Estimates (1998 to 2003)

Adult Arrival Timing (2003)

Median Arrival Timing of Adult Chinook Salmon at the Lostine River Weir NaturalHatchery YearDate(n)Date(n) 1998 July 12 (23) 1999 July 29 (13) 2000 Sept 1 (64) Sept 2 (27) 2001 June 24 (339) July 15 (104) 2002 July 19 (265) July 20 (278) 2003 July 11 (238) (226)

Age Composition (Brood Years 1995 to 1998)

Sex Composition of Chinook Salmon Captured at the Weir

Estimated Adult Returns and Smolt to Adult Return Rates Brood Year Program Age 3 (n) Age 4 (n) Age 5 (n) Estimated SAR 1997Conventional Captive

Redds Above and Below the Weir (1997 to 2003)

Summary of Results Annual production has ranged from 11,871 to 242,844 smolts from 1999 to Annual production has ranged from 11,871 to 242,844 smolts from 1999 to Juvenile survival of hatchery smolts from release to Lower Granite Dam has ranged from 47.9% to 67.3% from 1999 to 2003 and was similar to natural smolts with the exception of Juvenile survival of hatchery smolts from release to Lower Granite Dam has ranged from 47.9% to 67.3% from 1999 to 2003 and was similar to natural smolts with the exception of Adult hatchery escapement has ranged from 158 to 580 adults from 2000 to Adult hatchery escapement has ranged from 158 to 580 adults from 2000 to Supplementation has provided opportunities to out-plant adult fish.. Supplementation has provided opportunities to out-plant adult fish..

Future of the Project The project will continue to coordinate fish production, and monitoring and evaluation activities with co-managers through TOT and the AOP. The project will continue to coordinate fish production, and monitoring and evaluation activities with co-managers through TOT and the AOP. The project will be incorporated into the Northeast Oregon Hatchery program if it is fully funded. The project will be incorporated into the Northeast Oregon Hatchery program if it is fully funded.