Northwest Fisheries Science Center

Symposium on Salmon Supplementation

June 3-4, 2008
Museum of History and Industry, Seattle

The NWFSC and the The next link/button will exit from NWFSC web site Columbia River Inter-Tribal Fish Commission are hosting a symposium on hatchery supplementation and its effects on the fitness of wild salmon populations. The symposium is motivated by two recent reports on salmon supplementation -- a The next link/button will exit from NWFSC web site report by the The next link/button will exit from NWFSC web site Independent Science Advisory Board (ISAB) recommending more coordinated monitoring of supplementation programs, and a report by an The next link/button will exit from NWFSC web site Ad Hoc Supplementation Work Group that provided specific recommendations for supplementation monitoring in the Columbia River Basin. The purpose of the symposium is to provide a forum for fishery managers, policy makers, scientists, and the public to learn about and discuss recent research results related to these recommendations.

Agenda

June 3
8:45 Welcome and purpose of symposium (Michael Ford, NWFSC)
Session 1: Relative reproductive success of hatchery- and natural-origin salmon and steelhead
9:00 Overview of hatchery salmon relative reproductive success studies (Barry Berejikian, NWFSC)
9:30 Genetic effects of Chinook salmon captive broodstock propagation: Pedigrees provide a microscopic view of quantitative and population genetics in nature (Paul Moran, NWFSC)
10:00 Reduced reproductive success in an O. mykiss supplementation hatchery in Northeast Oregon: can we determine the life stage(s) most affected? (Ewann Berntson, NWFSC)
10:30 Break
11:00 Relative fitness of hatchery and natural Chinook salmon in the Wenatchee River (Michael Ford, NWFSC)
11:30 Reproductive success of Chinook salmon in the Pahsimeroi River (David Venditti, IDFG)
12:00 Breeding success of wild and first-generation hatchery spring Chinook spawning in an artificial stream (Steve Schroder, WDFW)
12:30 Discussion
12:45 Lunch
Session II: Effects of supplementation on abundance/productivity of natural populations
2:00 The effects of hatchery fish and climate change on the production of wild coho salmon (Oncorhynchus kisutch) along the Oregon coast (Eric Buhle, NWFSC/NRC)
2:30 ESA-listed summer chum salmon: A brief update on supplementation programs, natural-origin vs supplementation-origin returns, and recovery (Thom Johnson, WDFW)
3:00 Evaluation of the Imnaha River supplementation program (Rich Carmichael, ODFW)
3:30 Discusssion
4:00 Adjourn
June 4
9:00 Session II: Effects of supplementation on abundance/productivity of natural populations (continued)
9:15 Yakima River Spring Chinook salmon productivity (Todd Pearsons, WDFW)
9:45 Idaho Supplementation Studies (Chris Beasley, Quantitative Consultants, Inc.)
10:15 Patterns of hatchery production and natural productivity in the Interior Columbia River Basin (Michael Ford, NWFSC)
10:45 Break
11:00 Application of AHA to lower and mid-Columbia salmon – examples from analyzed populations (James Dixon, WDFW)
11:30 Review of CSMEP process and AHSWG recommendations (Jay Hesse, Nez Perce Tribe) confirmed
12:00 Discussion
12:30 Adjourn