2011 Field Report: Evaluation of Pinniped Predation on Adult Salmonids and Other Fish in the Bonneville Dam Tailrace, 2011

Stansell, Robert J.; van der Leeuw, Bjorn K.; Gibbons, Karrie M.; Nagy, William T.

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2011 Field Report: Evaluation of Pinniped Predation on Adult Salmonids and Other Fish in the Bonneville Dam Tailrace, 2011

2011
By Stansell, Robert J. ; van der Leeuw, Bjorn K. ; Gibbons, Karrie M. ; ...

[PDF-1.11 MB]

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Personal Author:

Stansell, Robert J. ; van der Leeuw, Bjorn K. ; Gibbons, Karrie M. ; Nagy, William T.

Stansell, Robert J. ; van der Leeuw, Bjorn K. ; Gibbons, Karrie M. ; Nagy, William T. Less -
Corporate Authors:

U.S. Army Corps of Engineers
NOAA Program & Office:

NMFS (National Marine Fisheries Service)
Description:

The U.S. Army Corps of Engineers (USACE) has used surface observations since 2002 to evaluate the seasonal presence, abundance, and predation activities of pinnipeds, including California sea lions (Zalophus californianus), Steller sea lions (Eumetopias jubatus), and Pacific harbor seals (Phoca vitulina richardsi) in the Bonneville Dam tailrace (Stansell, 2004; Tackley, et al., 2008; Stansell, et al., 2010). This monitoring program is part of an ongoing effort to understand and manage pinniped predation on salmonids, particularly Endangered Species Act (ESA) listed Columbia River wild spring Chinook salmon (Oncorhynchus tshawytscha) and steelhead trout (O. mykiss) in the tailrace of the dam. The USACE and partnering agencies have utilized a variety of deterrents and barriers to prevent predation in and around fishways and to deter predation on salmonids and other fish in the tailrace.
Keywords:

[+]

Biological Monitoring California Sea Lion Chinook Salmon Endangered Species Evaluation Fishery Management Fishways Harbor Seal Observation (Scientific Method) Pinnipedia Predation (Biology) Salmonidae Steelhead (Fish) Steller's Sea Lion
Document Type:

Miscellaneous
Place as Subject:

Columbia River ; Bonneville Dam (Or. and Wash.)

Columbia River ; Bonneville Dam (Or. and Wash.) Less -
Rights Information:

Public Domain
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Submitted
Main Document Checksum:

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urn:sha256:874386f93259c3c03b9751620cec022125dae37e168862dc4eb0482b7ac4767a
Download URL:

https://repository.library.noaa.gov/view/noaa/23912/noaa_23912_DS1.pdf
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2011 Field Report: Evaluation of Pinniped Predation on Adult Salmonids and Other Fish in the Bonneville Dam Tailrace, 2011

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