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

Feeding ecology of pelagic larvae of English sole Parophrys vetulus and butter sole Isopsetta isolepis off the Oregon coast

Creator:: Gadomski, Dena M. and Boehlert, George W.
Abstract:: The food habits of the 2 dominant larval pleuronectids off the Oregon coast - English sole Parophrys vetulus and butter sole Isopsetta isolepis - were analysed. Most specimens were collected during January-April 1971 and March-April 1973. As is typical of larval fishes, I. isolepis larvae ingested a variety of prey...
Resource Type:: Article
Full Text:: Isopsetta isolepis off the Oregon coast Dena M. Gadomski* and George W. Boehlert** College of

Comparison of larval development in domesticated and naturalized stocks of the Pacific oyster Crassostrea gigas exposed to high pCO₂ conditions

Creator:: Durland, Evan, Waldbusser, George, and Langdon, Chris
Abstract:: Ocean acidification (OA) has had significant negative effects on oyster populations on the west coast of North America over the past decade. Many studies have focused on the physiological challenges experienced by young oyster larvae in high pCO₂/low pH seawater with reduced aragonite saturation state (Ωarag), which is characteristic of...
Resource Type:: Article
Full Text:: Evan Durland1,*, George Waldbusser2, Chris Langdon1 1Department of Fisheries and Wildlife and Coastal

Increases in jellyfish biomass in the Bering Sea: implications for the ecosystem

Creator:: Brodeur, Richard D., Sugisaki, Hiroya, and Hunt Jr., George L.
Abstract:: There has been a dramatic increase in jellyfish biomass over the eastern Bering Sea shelf since the early 1990s, which was previously hypothesized to have been triggered by changing climate and ocean conditions. We examine the hypothesis that the presence of these large carnivores has affected fisheries resources, either through...
Resource Type:: Article
Full Text:: . Brodeur1,*, Hiroya Sugisaki2, George L. Hunt Jr 3 1Northwest Fisheries Science Center, National Marine

Predicting fish recruitment from juvenile abundance and environmental indices

Creator:: Stige, Leif Christian, Hunsicker, Mary E., Bailey, Kevin M., Yaragina, Natalia A., and Hunt, George L., Jr.
Abstract:: Prediction of year-class strength is a critical challenge for fisheries managers. Theoretically, predictions of recruitment should be better when they are based on estimates of cohort size taken close to the age of recruitment and may improve if the effects of environmental factors that influence pre-recruit mortality are accounted for....
Resource Type:: Article
Full Text:: Christian Stige1,*, Mary E. Hunsicker2, Kevin M. Bailey3, Natalia A. Yaragina4, George L. Hunt Jr5 1Centre

Summertime foraging ecology of North Atlantic right whales

Creator:: Baumgartner, Mark F. and Mate, Bruce R.
Abstract:: North Atlantic right whales were instrumented with suction-cup mounted, time-depth recorders (TDR) during the summers of 2000 and 2001 to examine their diving and foraging behavior. Simultaneous observations of temperature, salinity and the vertical distribution of their principal prey, Calanus finmarchicus stage 5 copepodites (C5), were obtained alon g each...
Resource Type:: Article
Full Text:: @whoi.edu Summertime foraging ecology of North Atlantic right whales Mark F. Baumgartner1, 3,*, Bruce R

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

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:: Alaska and north of the Aleutian Island chain. The 2 largest islands, St. Paul and St. George, are

Effects of currents and tides on fine-scale use of marine bird habitats in a Southeast Alaska hotspot

Creator:: Drew, Gary S., Piatt, John F., and Hill, David F.
Abstract:: Areas with high species richness have become focal points in the establishment of marine protected areas, but an understanding of the factors that support this diversity is still incomplete. In coastal areas, tidal currents—modulated by bathymetry and manifested in variable speeds—are a dominant physical feature of the environment. However, difficulties...
Resource Type:: Article
Full Text:: on surveys. We thank K. Oakley and R. Taylor for comments on the manuscript. Any mention of trade

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:: edge of the Bering Sea shelf, St. George and St. Paul islands (part of the Pribilof Archipelago) serve

ScholarsArchive@OSU

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

Feeding ecology of pelagic larvae of English sole Parophrys vetulus and butter sole Isopsetta isolepis off the Oregon coast

Comparison of larval development in domesticated and naturalized stocks of the Pacific oyster Crassostrea gigas exposed to high pCO₂ conditions

Increases in jellyfish biomass in the Bering Sea: implications for the ecosystem

Predicting fish recruitment from juvenile abundance and environmental indices

Summertime foraging ecology of North Atlantic right whales

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

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

Effects of currents and tides on fine-scale use of marine bird habitats in a Southeast Alaska hotspot

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

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