2016 5-Year Review : Summary & Evaluation of Upper Willamette River Steelhead Upper Willamette River Chinook
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2016 5-Year Review : Summary & Evaluation of Upper Willamette River Steelhead Upper Willamette River Chinook

  • 2016

Filetype[PDF-2.16 MB]



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  • Description:
    Many West Coast salmon and steelhead (Oncorhynchus sp.) stocks have declined substantially from their historic numbers and now are at a fraction of their historical abundance. There are several factors that contribute to these declines, including: overfishing, loss of freshwater and estuarine habitat, hydropower development, poor ocean conditions, and hatchery practices. These factors collectively led to the National Marine Fisheries Service’s (NMFS) listing of 28 salmon and steelhead stocks in California, Idaho, Oregon, and Washington under the Federal Endangered Species Act (ESA). The ESA, under section 4(c)(2), directs the Secretary of Commerce to review the listing classification of threatened and endangered species at least once every five years. After completing this review, the Secretary must determine if any species should be: (1) removed from the list; (2) have its status changed from threatened to endangered; or (3) have its status changed from endangered to threatened. The most recent listing determinations for most salmon and steelhead occurred in 2005 and 2006. This document describes the results of the 2016 five-year reviews of the ESA-listed Upper Willamette River (UWR) steelhead and Chinook salmon.
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