Technical Report
 

Salmon Abundances and Effects of Harvest: Implications for Rebuilding Stocks of Wild Coho Salmon in Oregon

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  • This Technical Report of the Independent Multidisciplinary Science Team (IMST) focuses on the technical and scientific issues involving (a) management of coho salmon harvest by the State of Oregon and Pacific Fisheries Management Council and (b) the analysis of salmonid population dynamics under the Oregon Plan for Salmon and Watersheds. IMST's science questions, conclusions and recommendations are presented as the technical basis for actions under the Oregon Plan for Salmon and Watersheds. IMST recognizes that commercial fishery harvest management is only one of the several factors that influence the recovery of depressed stocks of Oregon coastal native (OCN) coho salmon, but it is the single most important factor influencing the escapement of adults from the ocean to spawning areas. For this reason harvest management decisions have the most immediate effect on the rate of salmonid recovery. In addition, in those north coast stocks where species abundance is very low, harvest management decisions are critically important in determining the likelihood of stock extinction. The scope of this report is OCN coho salmon, but the principles and technical guidance it provides are equally applicable to other anadromous salmonid species that are included in the Oregon Plan for Salmon and Watersheds.
  • This report was prepared by the Independent Multidisciplinary Science Team of the Oregon Plan for Salmon and Watersheds.
  • Keywords: recovery, hatchery fish, Pacific Fisheries Management Council, commercial fish harvest, wildfish, Oncorhynchus kisutch, coho salmon, spawner return rates
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  • Independent Multidisciplinary Science Team. 2000. Salmon Abundances and Effects of Harvest: Implications for Rebuilding Stocks of Wild Coho Salmon in Oregon. Technical Report 2000-3. Oregon Watershed Enhancement Board. Salem, OR.
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