Index Catalog // ScholarsArchive@OSU

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

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

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

Creator:: Adrean, Lindsay J., Roby, Daniel D., Lyons, Donald E., Collis, Ken, and Evans, Allen F.
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...
Resource Type:: Article
Full Text:: Lindsay J. Adrean1 Department of Fisheries and Wildlife, Oregon State University, 104 Nash Hall

Translocating Adult Pacific Lamprey within the Columbia River Basin: State of the Science

Creator:: Ward, David L., Clemens, Benjamin J., Clugston, David, Jackson, Aaron D., Moser, Mary L., Peery, Chris, and Statler, David P.
Abstract:: The Pacific lamprey (Entosphenus tridentatus) is in decline in the Columbia River Basin, and translocating adult lamprey to bypass difficult migration corridors has been implemented since 2000. We describe and report results from two current translocation programs, provide context for use of translocation, and discuss potential benefits, risks, and uncertainties....
Resource Type:: Article
Full Text:: Benjamin J. Clemens Department of Fisheries and Wildlife, Oregon State University, Corvallis, OR 97331

Avian Predation on Juvenile Salmonids: Spatial and Temporal Analysis Based on Acoustic and Passive Integrated Transponder Tags

Creator:: Evans, Allen F., Payton, Quinn, Turecek, Aaron, Cramer, Bradley, Collis, Ken, Roby, Daniel D., Loschl, Peter J., Sullivan, Leah, Skalski, John, Weiland, Mark, and Dotson, Curtis
Abstract:: We evaluated the impact of predation on juvenile steelhead Oncorhynchus mykiss and yearling and subyearling Chinook Salmon O. tshawytscha by piscivorous waterbirds from 11 different breeding colonies in the Columbia River basin during 2012 and 2014. Fish were tagged with both acoustic tags and PIT tags and were tracked via...
Resource Type:: Article

Body Size and Growth Rate Influence Emigration Timing of Oncorhynchus mykiss

Creator:: Tattam, Ian A., Ruzycki, James R., Li, Hiram W., and Giannico, Guillermo R.
Abstract:: Juvenile Oncorhynchus mykiss migrate extensively in freshwater during fall. We used individual tagging to study the spatial origin, influences, and outcomes of fall migration on fish that emigrated from summer rearing tributaries during fall (early-emigrants) and those that did not (late-emigrants) in the South Fork John Day River, Oregon. Fall...
Resource Type:: Article
Full Text:: Acknowledgments 351 We thank S. White, F. Madrinan, J. Feldhaus, S. Heppell, P. Bayley, J. Davis, B. Kingsley, V

Quantifying Salmon-Derived Nutrient Loads from the Mortality of Hatchery-Origin Juvenile Chinook Salmon in the Snake River Basin

Creator:: Warren, Dana R. and McClure, Michelle M.
Abstract:: Hatchery supplementation of anadromous salmon is extensive across the Pacific Northwest region with millions of juvenile salmon stocked annually. The influence of hatchery-origin fish as prey items in recipient ecosystems has been explored, but influences of these fish on broader stream nutrient dynamics has not been well-studied. Salmon-derived nutrients (SDN)...
Resource Type:: Article
Full Text:: American Benthological Society 23:701–712. Bilby, R. E., B. R. Fransen, P. A. Bisson, and J. K. Walter

AFS Position Paper and Policy on Mining and Fossil Fuel Extraction

Creator:: Hughes, Robert M., Amezcua, Felipe, Chambers, David M., Daniel, Wesley M., Franks, James S., Franzin, William, MacDonald, Donald, Merriam, Eric, Neall, George, dos Santos Pompeu, Paulo, Reynolds, Lou, and Woody, Carol Ann
Abstract:: Following a four-year period of writing, member comment, and multiple revisions, the AFS Position Paper and Policy on Mining and Fossil Fuel Extraction was approved unanimously by the membership at the Society's annual business meeting August 19, 2015, in Portland, Oregon. The entire document can be read at fisheries.org/policy_statements; a...
Resource Type:: Article
Full Text:: Environmental Health 29:307-318. Weltman-Fahs, M., and J. M. Taylor. 2013. Hydraulic fracturing and Brook

The effects of semi-chronic thermal stress on physiological indicators in steelhead Oncorhynchus mykiss

Creator:: Kammerer, Brittany D. and Heppell, Scott A.
Abstract:: The physiological response of juvenile steelhead (Oncorhynchus mykiss) to prolonged heat stress was examined by exposing replicated groups of fish to 25 consecutive days at 15°C, 23°C, and 25°C followed by a 55 day recovery period at 15°C. We found that at temperatures ≥25°C, steelhead consumed significantly less food per...
Resource Type:: Article
Full Text:: , J. A., D. D. Roby, and K. R. Turco. 2000. Lipid content and energy density of forage 426 fishes

The influence of release strategy and migration history on capture rate of Oncorhynchus mykiss in a rotary screw trap

Creator:: Tattam, Ian A., Ruzycki, James R., Bayley, Peter B., Li, Hiram W., and Giannico, Guillermo R.
Abstract:: Rotary screw traps are used throughout the West Coast of North America to capture emigrating juvenile salmonids. Calibrating the capture efficiency of each trap is essential for valid estimates of fish passage. We released Passive Integrated Transponder (PIT) tagged Oncorhynchus mykiss upstream of a rotary screw trap in the South...
Resource Type:: Article
Full Text:: for large sized O. mykiss. 345 346 17 Acknowledgements 347 We thank W. Wilson, J

ScholarsArchive@OSU

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

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

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

Translocating Adult Pacific Lamprey within the Columbia River Basin: State of the Science

Avian Predation on Juvenile Salmonids: Spatial and Temporal Analysis Based on Acoustic and Passive Integrated Transponder Tags

Body Size and Growth Rate Influence Emigration Timing of Oncorhynchus mykiss

Quantifying Salmon-Derived Nutrient Loads from the Mortality of Hatchery-Origin Juvenile Chinook Salmon in the Snake River Basin

AFS Position Paper and Policy on Mining and Fossil Fuel Extraction

The effects of semi-chronic thermal stress on physiological indicators in steelhead Oncorhynchus mykiss

The influence of release strategy and migration history on capture rate of Oncorhynchus mykiss in a rotary screw trap

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