NDLI: Potential Effects of Management on Caspian Tern Hydroprogne caspia Predation on Juvenile Salmonids at a Colony in San Francisco Bay, California

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Potential Effects of Management on Caspian Tern Hydroprogne caspia Predation on Juvenile Salmonids at a Colony in San Francisco Bay, California

Content Provider	Semantic Scholar
Author	Adrean, Lindsay J. Roby, Daniel D. Lyons, Donald E. Collis, Ken Evans, Allen F.
Copyright Year	2012
Abstract	Abstract San Francisco Bay is a proposed relocation site for some of the Caspian terns Hydroprogne caspia currently nesting at the world's largest colony for the species in the Columbia River estuary and consuming salmonids listed under the U.S. Endangered Species Act (ESA). However, several runs of salmonids listed under the ESA occur in San Francisco Bay and managers are concerned that increased Caspian tern predation may pose a threat to the recovery of these fish. We used a bioenergetics modeling approach, employing estimates of tern energy requirements and proportions of energy supplied by various prey types, to estimate the consumption of juvenile salmonids by Caspian terns nesting on Brooks Island in central San Francisco Bay during 2008 and 2009. Estimated salmonid consumption was ∼205,000 smolts (95% confidence interval, 175,000–245,000 smolts) in 2008 and ∼167,000 smolts (144,000–191,000 smolts) in 2009. The interannual difference in smolt consumption was due to the smaller size of the tern colo...
Starting Page	1682
Ending Page	1696
Page Count	15
File Format	PDF HTM / HTML
DOI	10.1080/00028487.2012.713886
Volume Number	141
Alternate Webpage(s)	https://ir.library.oregonstate.edu/downloads/tq57nr43c
Alternate Webpage(s)	http://www.birdresearchnw.org/Adrean2012SFBayBioE.pdf
Alternate Webpage(s)	http://osu-wams-blogs-uploads.s3.amazonaws.com/blogs.dir/2849/files/2017/03/Adrean-et-al-2012.pdf
Alternate Webpage(s)	https://doi.org/10.1080/00028487.2012.713886
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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