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MetaData for Willamette Biological Opinion Chinook Steelhead Outmigration 2014 Annual Report
Willamette Biological Opinion Chinook Steelhead Outmigration 2014 Annual Report
Identification Information
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Citation
- Originator: ODFW
- Publish Date: June 2015
- Online Link: None
- BPA Project #:
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Contact Information
- Agency: Oregon Department of Fish and Wildlife
- Name: Jeremy Romer
- Job Position: Assistant Project Leader
- Telephone: 541-757-4113
- E-Mail Address: jeremy.d.romer@odfw.oregon.gov
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Description
- Abstract: The goal of this project was to provide research and monitoring data regarding fish species
composition, timing and size of fish entering and exiting Willamette Valley Project (WVP)
reservoirs. This information can be used to evaluate options for development of downstream
passage for juvenile salmonids Oncorhynchus spp. at upper Willamette River reservoirs. We
present data from screw trap operations above and below USACE project dams during 2014.
Traps upstream of reservoirs were located on the North Santiam River above Detroit Reservoir,
the South Santiam River above Foster Reservoir, the South Fork McKenzie River above Cougar
Reservoir, and the Middle Fork Willamette River above Lookout Point Reservoir. Traps were
also located below Detroit/Big Cliff, Foster, Cougar, and Lookout Point dams.
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- Purpose: Spring Chinook salmon Oncorhynchus tshawytscha and winter steelhead O. mykiss in their
respective upper Willamette River Evolutionarily Significant Units (ESUs) are listed as
threatened under the U. S. Endangered Species Act (NMFS 1999a; NMFS 1999b). As a result,
the National Marine Fisheries Service (NMFS) must evaluate whether any action taken or funded
by a federal agency is likely to jeopardize these species, or result in the destruction or
impairment of critical habitat. The 2008 Willamette Project Biological Opinion (BiOp; NMFS
2008) outlined the impacts of the Willamette Valley Project (WVP) on Upper Willamette River
(UWR) Chinook salmon and winter steelhead. The WVP includes 13 dams and associated
reservoirs managed jointly by the U.S. Army Corps of Engineers (USACE), Bonneville Power
Administration, and Bureau of Reclamation, collectively known as the Action Agencies. The
BiOp detailed specific actions, termed Reasonable and Prudent Alternative (RPA) measures that
would “…allow for survival of the species with an adequate potential for recovery, and avoid
destruction or modification of critical habitat”.
A number of RPA measures in the Willamette Project BiOp are associated with downstream
fish passage through reservoirs and dams. These include RPA measures 4.2 (winter steelhead
passage), 4.7 (adult fish release sites above dams), 4.8 (interim downstream fish passage through
reservoirs and dams), 4.9 (head-of-reservoir juvenile collection prototype), 4.10 (downstream
juvenile fish passage through reservoirs), 4.12 (long-term fish passage solutions). Currently,
numerous passage designs and operational discharge modifications are under consideration to
improve downstream passage and survival of juvenile migrants. Improving downstream passage
requires a basic understanding of the size, timing, and abundance of juvenile salmonids that enter
and exit the reservoirs.
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- Time Period of Content:
- Geographic Extent: North Santiam, South Santiam, South Fork McKenzie, and Middle Fork Willamette Rivers
- Status: Final
- Use Constraints:
- Format: PDF
Data Quality Information
- Lineage-Source: Task Order Number: W9127N-10-2-0008-0026
Work Completed for Compliance with the 2008 Willamette Project Biological Opinion, USACE
funding: 2014
Data Information
- No data information was supplied.
Entity and Attribute Information
- Attributes Description: Field attribute information is available in the database table field descriptions.
Is a physical copy maintained for reference at Headquarters?
Unknown
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