Index Catalog // ScholarsArchive@OSU

Susceptibility of juvenile salmonids to avian predation : Are Caspian terns and double-crested cormorants only taking the sick and injured?

Creator:: Hostetter, Nathan J.
Abstract:: The ability to non-destructively assess fish condition and subsequently track fish behavior and survival can be vital in understanding natural and anthropogenic stressors and sources of mortality, especially in populations of fish listed as threatened or endangered. I investigated the use of a quick, non-lethal, external examination technique to assess...
Resource Type:: Masters Thesis
Full Text:: . © Copyright by Nathan J. Hostetter December 8, 2009 All Rights Reserved Susceptibility of

Susceptibility of Juvenile Steelhead to Avian Predation: the Influence of Individual Fish Characteristics and River Conditions

Creator:: Hostetter, Nathan J., Evans, Allen F., Roby, Daniel D., and Collis, Ken
Abstract:: Identification of the factors that influence susceptibility to predation can aid in developing management strategies to recover fish populations of conservation concern. Predator-prey relationships can be influenced by numerous factors, including prey condition, prey size, and environmental conditions. We investigated these factors by using juvenile steelhead Oncorhynchus mykiss from the...
Resource Type:: Article
Full Text:: Predation: the Influence of Individual Fish Characteristics and River Conditions Nathan J. Hostetter*1

LyonsDonaldFisheriesWildlifeQuantifyingAvianPredation.pdf

Creator:: Hostetter, Nathan J., Evans, Allen F., Cramer, Bradley M., Collis, Ken, Lyons, Donald E., and Roby, Daniel D.
Abstract:: Accurate assessment of specific mortality factors is vital to prioritize recovery actions for threatened and endangered species. For decades, tag recovery methods have been used to estimate fish mortality due to avian predation. Predation probabilities derived from fish tag recoveries on piscivorous waterbird colonies typically reflect minimum estimates of predation...
Full Text:: -Specific Deposition Probabilities in Tag Recovery Studies Nathan J. Hostetter,*1 Allen F. Evans, Bradley M

Demographics of Piscivorous Colonial Waterbirds and Management Implications for ESA-listed Salmonids on the Columbia Plateau

Creator:: Adkins, Jessica Y., Lyons, Donald E., Loschl, Peter J., Roby, Daniel D., Collis, Ken, Evans, Allen F., and Hostetter, Nathan J.
Abstract:: We investigated colony size, productivity, and limiting factors for five piscivorous waterbird species nesting at 18 locations on the Columbia Plateau (Washington) during 2004–2010 with emphasis on species with a history of salmonid (Oncorhynchus spp.) depredation. Numbers of nesting Caspian terns (Hydroprogne caspia) and double-crested cormorants (Phalacrocorax auritus) were stable...
Resource Type:: Article
Full Text:: , Oregon State University, Corvallis, Oregon 97331 Ken Collis2, Allen F. Evans, Nathan J. Hostetter, Real

LyonsDonaldFisheriesWildlifeQuantifyingAvianPredation_SupplementalMaterial.pdf

Creator:: Hostetter, Nathan J., Evans, Allen F., Cramer, Bradley M., Collis, Ken, Lyons, Donald E., and Roby, Daniel D.
Abstract:: Accurate assessment of specific mortality factors is vital to prioritize recovery actions for threatened and endangered species. For decades, tag recovery methods have been used to estimate fish mortality due to avian predation. Predation probabilities derived from fish tag recoveries on piscivorous waterbird colonies typically reflect minimum estimates of predation...

Quantifying Avian Predation on Fish Populations: Integrating Predator-Specific Deposition Probabilities in Tag Recovery Studies

Creator:: Hostetter, Nathan J., Evans, Allen F., Cramer, Bradley M., Collis, Ken, Lyons, Donald E., and Roby, Daniel D.
Abstract:: Accurate assessment of specific mortality factors is vital to prioritize recovery actions for threatened and endangered species. For decades, tag recovery methods have been used to estimate fish mortality due to avian predation. Predation probabilities derived from fish tag recoveries on piscivorous waterbird colonies typically reflect minimum estimates of predation...
Resource Type:: Article

Systemwide Evaluation of Avian Predation on Juvenile Salmonids from the Columbia River Based on Recoveries of Passive Integrated Transponder Tags

Creator:: Evans, Allen F., Hostetter, Nathan J., Roby, Daniel D., Collis, Ken, Lyons, Donald E., Sandford, Benjamin P., Ledgerwood, Richard D., and Sebring, Scott
Abstract:: We recovered passive integrated transponder (PIT) tags from nine piscivorous waterbird colonies in the Columbia River basin to evaluate avian predation on Endangered Species Act (ESA)-listed salmonid Oncorhynchus spp. populations during 2007–2010. Avian predation rates were calculated based on the percentage of PIT-tagged juvenile salmonids that were detected as passing...
Resource Type:: Article
Full Text:: Transponder Tags Allen F. Evans and Nathan J. Hostetter Real Time Research, Inc., 52 Southwest Roosevelt

Trends in Caspian Tern Nesting and Diet in San Francisco Bay: Conservation Implications for Terns and Salmonids

Creator:: Collis, Ken, Roby, Daniel D., Larson, Keith W., Adrean, Lindsay J., Nelson, S. Kim, Evans, Allen F., Hostetter, Nathan, Battaglia, Dan, Lyons, Donald E., Marcella, Tim, and Patterson, Allison
Abstract:: Colony size, nesting ecology and diet of Caspian Terns (Hydroprogne caspia) were investigated in the San Francisco Bay area (SFBA) during 2003-2009 to assess the potential for conservation of the tern breeding population and possible negative effects of predation on survival of juvenile salmonids (Oncorhynchus spp.). Numbers of breeding Caspian...
Resource Type:: Article
Full Text:: J. ADREAN3, S. KIM NELSON3, ALLEN F. EVANS1, NATHAN HOSTETTER1, DAN BATTAGLIA3, DONALD E. LYONS3

Caspian tern (Hydroprogne caspia) foraging ecology and predation on juvenile salmonids in San Francisco Bay, California

Creator:: Adrean, Lindsay J.
Abstract:: Brooks Island, located in central San Francisco Bay, California, currently supports the largest breeding colony of Caspian terns (Hydroprogne caspia) in the Bay Area, and is one of several proposed relocation sites for some Caspian terns from the world's largest colony in the Columbia River estuary of Oregon. Juvenile salmonids...
Resource Type:: Masters Thesis
Full Text:: , Angela Whitney, Jonathan Felis, Darren Wiens, Nick Bromen, Nathan Hostetter, Kirsten Bixler, Yasuko

Piscivorous colonial waterbirds in the Columbia River estuary : demography, dietary contaminants, and management

Creator:: Suzuki, Yasuko
Abstract:: Caspian terns (Hydroprogne caspia) and double-crested cormorants (Phalacrocorax auritus) nest in large colonies on East Sand Island in the Columbia River estuary, the largest known colonies for the two species in the world. Both species of piscivorous colonial waterbirds have been identified as predators with a significant impact on the...
Resource Type:: Dissertation
Full Text:: , Rob Suryan, and James Tennyson from Roby Lab at OSU; Ken Collis, Allen Evans, Mike Hawbecker, Nathan

ScholarsArchive@OSU

Susceptibility of juvenile salmonids to avian predation : Are Caspian terns and double-crested cormorants only taking the sick and injured?

Susceptibility of Juvenile Steelhead to Avian Predation: the Influence of Individual Fish Characteristics and River Conditions

LyonsDonaldFisheriesWildlifeQuantifyingAvianPredation.pdf

Demographics of Piscivorous Colonial Waterbirds and Management Implications for ESA-listed Salmonids on the Columbia Plateau

LyonsDonaldFisheriesWildlifeQuantifyingAvianPredation_SupplementalMaterial.pdf

Quantifying Avian Predation on Fish Populations: Integrating Predator-Specific Deposition Probabilities in Tag Recovery Studies

Systemwide Evaluation of Avian Predation on Juvenile Salmonids from the Columbia River Based on Recoveries of Passive Integrated Transponder Tags

Trends in Caspian Tern Nesting and Diet in San Francisco Bay: Conservation Implications for Terns and Salmonids

Caspian tern (Hydroprogne caspia) foraging ecology and predation on juvenile salmonids in San Francisco Bay, California

Piscivorous colonial waterbirds in the Columbia River estuary : demography, dietary contaminants, and management

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