Index Catalog // ScholarsArchive@OSU

Ocean habitat use in autumn by Chinook salmon in coastal waters of Oregon and California

Creator:: Hinke, Jefferson T., Watters, George M., Boehlert, George W., and Zedonis, Paul
Abstract:: Describing the ocean habitats used by Chinook salmon Oncorhynchus tshawytscha is an important step towards understanding how environmental conditions influence their population dynamics. We used data from archival tags that recorded time, temperature and pressure (depth) to define the coastal habitats used by Chinook near Oregon and California during the...
Resource Type:: Article
Full Text:: waters of Oregon and California Jefferson T. Hinke1, 2,*, George M. Watters2, George W. Boehlert3, Paul

Stable isotope values delineate the non-breeding distributions of sooty shearwaters Puffinus griseus in the North Pacific Ocean

Creator:: Thompson, David R., Torres, Leigh G., Taylor, Graeme A., Rayner, Matt J., Sagar, Paul M., Shaffer, Scott A., Phillips, Richard A., and Bury, Sarah J.
Abstract:: Following breeding, sooty shearwaters Puffinus griseus leave New Zealand waters and migrate to 1 of 3 distinct areas in the North Pacific Ocean, effectively exploiting environmental resources across a large proportion of this northern ocean basin. In this study, we combined electronic tracking technology with stable isotope analyses (δ¹⁵N and...
Resource Type:: Article
Full Text:: North Pacific Ocean David R. Thompson1,*, Leigh G. Torres1,2, Graeme A. Taylor3, Matt J. Rayner4, Paul

Scale-dependent detection of the effects of harvesting a marine fish population

Creator:: Bartolino, Valerio, Ciannelli, Lorenzo, Spencer, Paul, Wilderbuer, Thomas K., and Chan, Kung-Sik
Abstract:: Certain ecological processes dominate others at particular scales, and the response of populations to exogenous and endogenous forces are typically scale dependent. In spite of this central role played by scale, the temporal and spatial scales of human impacts on ecosystems and populations remain almost unknown. We applied a multiscale...
Resource Type:: Article
Full Text:: effects of harvesting a marine fish population Valerio Bartolino1,2,*, Lorenzo Ciannelli3, Paul Spencer4

Proximity to multiple foraging habitats enhances seabirds’ resilience to local food shortages

Creator:: Paredes, Rosana, Harding, Ann M. A., Irons, David B., Roby, Daniel D., Suryan, Robert M., Orben, Rachael A., Renner, Heather, Young, Rebecca, and Kitaysky, Alexander
Abstract:: As central-place foragers, seabirds from colonies located close to multiple and/or productive marine habitats might experience increased foraging opportunities and enhanced resilience to food shortages. We tested whether this hypothesis might explain divergent trends in 3 populations of black-legged kittiwakes Rissa tridactyla, a surface-feeding piscivore, in the eastern Bering Sea....
Resource Type:: Article
Full Text:: kittiwakes from 2 continental shelf colonies (St. Paul and St. George) and an oceanic colony (Bogoslof

Strong maternal fidelity and natal philopatry shape genetic structure in North Pacific humpback whales

Creator:: Baker, C. Scott, Steel, Debbie, Calambokidis, John, Falcone, Erin, González-Peral, Ursula, Barlow, Jay, Burdin, Alexander M., Clapham, Phillip J., Ford, John K. B., Gabriele, Christine M., Mattila, David, Rojas-Bracho, Lorenzo, Straley, Janice M., Taylor, Barbara L., Urbán, Jorge, Wade, Paul R., Weller, David, Witteveen, Briana H., and Yamaguchi, Manami
Abstract:: We quantified the relative influence of maternal fidelity to feeding grounds and natal fidelity to breeding grounds on the population structure of humpback whales Megaptera novae-angliae based on an ocean-wide survey of mitochondrial (mt) DNA diversity in the North Pacific. For 2193 biopsy samples collected from whales in 10 feeding...
Resource Type:: Article

Consequence of a superabundance of larval walleye pollock Theragra chalcogramma in the Gulf of Alaska in 1981

Creator:: Duffy-Anderson, J. T., Bailey, Kevin Mclean, and Ciannelli, Lorenzo
Abstract:: Abundances of larval walleye pollock in Shelikof Strait, Gulf of Alaska, in 1981 were far greater than any recorded estimates before that time or since (some patch estimates exceeded 100000 larvae per 10 m²). In spite of this extraordinary input, the ensuing 1981 year class was relatively poor. An examination...
Resource Type:: Article
Full Text:: Alaska in 1981 J. T. Duffy-Anderson*, K. M. Bailey, L. Ciannelli Alaska Fisheries Science Center

Nested scales of spatial heterogeneity in juvenile walleye pollock Theragra chalcogramma in the southeastern Bering Sea

Creator:: Benoit-Bird, Kelly J., McIntosh, Neal E., and Heppell, Scott A.
Abstract:: We sought to characterize the distribution of juvenile walleye pollock Theragra chalcogramma in an area of intense predator-prey interactions and to describe habitat features that lead to their observed distributions. The distribution of juvenile walleye pollock around the Pribilof Islands in the southeastern Bering Sea in 2008 and 2009 was...
Resource Type:: Article
Full Text:: walleye pollock Theragra chalcogramma in the southeastern Bering Sea Kelly J. Benoit-Bird1,*, Neal E

Behavior of juvenile bluefish Pomatomus saltatrix in vertical thermal gradients: influence of season, temperature acclimation and food

Creator:: Olla, Bori L., Studholme, Anne L., and Bejda, Allen J.
Abstract:: Behavioral responses of juvenile bluefish P. saltatrix L. exposed to cold water in a vertical thermal gradient were measured under controlled laboratory conditions. The temperature regime was similar to conditions that these fish encounter in their inshore and estuarine habitats along the Middle Atlantic coast. Measures included activity, schooling, position...
Resource Type:: Article
Full Text:: , D. G., Schlitz, R. J . , Thomas, J. P,, Bisagni, J. J., Paul, J. F., Warsh, C. E. (1982). Summary

When is bigger better? Early marine residence of middle and upper Columbia River spring Chinook salmon

Creator:: Tomaro, Londi M., Teel, David J., Peterson, William T., and Miller, Jessica A.
Abstract:: Early ocean residence is considered a critical period for juvenile salmon although specific survival mechanisms are often unidentified and may vary by species or life stage. Columbia River spring-run Chinook salmon Oncorhynchus tshawytscha abundance has declined dramatically since the early 1900s. To elucidate mechanisms of early marine survival, we tested...
Resource Type:: Article
Full Text:: salmon Londi M. Tomaro1*, David J. Teel2, William T. Peterson3, Jessica A. Miller1 1Coastal Oregon

Foraging behavior of northern fur seals closely matches the hierarchical patch scales of prey

Creator:: Benoit-Bird, Kelly J., Battaile, Brian C., Nordstrom, Chad A., and Trites, Andrew W.
Abstract:: Marine prey often occur in hierarchical mosaics whereby small, high-density patches are nested inside of larger, lower density aggregations. We tested the extent to which the foraging behavior of a marine predator (northern fur seal Callorhinus ursinus) could be explained by the hierarchical patch structure of a dominant prey species...
Resource Type:: Article
Full Text:: fur seals closely matches the hierarchical patch scales of prey Kelly J. Benoit-Bird1,*, Brian C

ScholarsArchive@OSU

Ocean habitat use in autumn by Chinook salmon in coastal waters of Oregon and California

Stable isotope values delineate the non-breeding distributions of sooty shearwaters Puffinus griseus in the North Pacific Ocean

Scale-dependent detection of the effects of harvesting a marine fish population

Proximity to multiple foraging habitats enhances seabirds’ resilience to local food shortages

Strong maternal fidelity and natal philopatry shape genetic structure in North Pacific humpback whales

Consequence of a superabundance of larval walleye pollock Theragra chalcogramma in the Gulf of Alaska in 1981

Nested scales of spatial heterogeneity in juvenile walleye pollock Theragra chalcogramma in the southeastern Bering Sea

Behavior of juvenile bluefish Pomatomus saltatrix in vertical thermal gradients: influence of season, temperature acclimation and food

When is bigger better? Early marine residence of middle and upper Columbia River spring Chinook salmon

Foraging behavior of northern fur seals closely matches the hierarchical patch scales of prey

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