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Invasive red lionfish Pterois volitans blow directed jets of water at prey fish

Creator:: Albins, Mark A. and Lyons, Patrick J.
Abstract:: Field and laboratory observations of feeding by invasive Pacific red lionfish Pterois volitans were conducted during June through August of 2008, 2009 and 2010 near Lee Stocking Island, Bahamas. Observations of this invasive marine predator revealed a previously undocumented piscivorous behavior. While slowly approaching prey fish, lionfish produce jets of...
Resource Type:: Article
Full Text:: water jets, to our knowl- edge, this is the first report of a fish that does so during the capture of

Light-induced changes in the prey consumption and behavior of two juvenile planktivorous fish

Creator:: Ryer, Clifford H. and Bori L., Olla
Abstract:: Walleye pollock and sablefish, as 0+ yr juveniles, are pelagic particulate feeding planktivores. We conducted a series of laboratory experiments to determine how illumination influences prey consumption in these species, utilizing live Artemia sp. as prey. Both juvenile walleye pollock and sablefish were characterized by a sigmoidal relationship between the...
Resource Type:: Article
Full Text:: facilitate lateral line hours spent analyzing videotapes. special thanks go to cindy Sweitzer for her

Density-dependent effects of an introduced oyster, Crassostrea gigas, on a native intertidal seagrass, Zostera marina

Creator:: Wagner, Eric, Dumbauld, Brett R., Hacker, Sally D., Trimble, Alan C., Wisehart, Lorena M., and Ruesink, Jennifer L.
Abstract:: Seagrasses and bivalves co-occur worldwide, and each plays a role in the structure, function, and services of coastal ecosystems. While seagrasses are declining, bivalve aquaculture is expanding, and impacts from culture practices, as opposed to the cultured organisms themselves, need to be distinguished. In 2 experiments, we tested the effects...
Resource Type:: Article
Full Text:: , we report on the effects of an introduced bivalve, the Pacific oyster Crassostrea gigas, on a native

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:: Wildlife Service and the National Park Service. Special thanks to Captains Jim de La Bruere of the USGS

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:: right whales diving to depths below 100 m in the lower Bay of Fundy. We report here on a study of right

Response of bacteria to simulated upwelling phytoplankton blooms

Creator:: Wetz, Michael S. and Wheeler, Patricia A.
Abstract:: Until recently, studies of the fate of primary production in coastal upwelling systems have focused mainly on export through sinking of particulate organic matter (POM). In week-long deck incubations conducted during the upwelling season off Oregon, a large accumulation of carbonrich (C:N ≥ 16) dissolved organic matter (DOM) occurred following...
Resource Type:: Article
Full Text:: . Acknowledgements. We would like to thank E. B. and B. F. Sherr for their constructive comments. Special thanks to B

Photoacclimation of natural phytoplankton communities

Creator:: Graff, Jason R., Westberry, Toby K., Milligan, Allen J., Brown, Matthew B., Dall’Olmo, Giorgio, Reifel, Kristen M., and Behrenfeld, Michael J.
Abstract:: ABSTRACT: Phytoplankton regulate internal pigment concentrations in response to light and nutrient availability. Chlorophyll a to phytoplankton carbon ratios (chl:C phyto) are commonly reported as a function of growth irradiance (Eg) for evaluating the photoacclimation response of phytoplankton. In contrast to most culture experiments, natural phytoplankton communities experience fluctuating environmental...
Resource Type:: Article
Full Text:: this report is to compare the new field data with previously described relationships from labora- tory

Comparison between environmental characteristics of larval bluefin tuna Thunnus thynnus habitat in the Gulf of Mexico and western Mediterranean Sea

Creator:: Muhling, Barbara A., Reglero, Patricia, Ciannelli, Lorenzo, Alvarez-Berastegui, Diego, Alemany, Francisco, Lamkin, John T., and Roffer, Mitchell A.
Abstract:: Despite being well adapted for feeding in cold water on their North Atlantic feeding grounds, Atlantic bluefin tuna undertake long migrations to reach warm, low productivity spawn - ing grounds in the Gulf of Mexico and Mediterranean Sea. Environmental conditions within spawning areas have been presumed to benefit larval survival,...
Resource Type:: Article

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

Fatty acid biomarkers in coldwater eelgrass meadows: elevated terrestrial input to the food web of age-0 Atlantic cod Gadus morhua

Creator:: Copeman, L. A., Parrish, C. C., Gregory, R. S., Jamieson, R. E., Wells, J., and Whiticar, M. J.
Abstract:: Lipid classes, fatty acids (FAs), and stable carbon isotopes of FAs were used to investi- gate dietary sources of organic carbon for juvenile Atlantic cod Gadus morhua during settlement into eelgrass Zostera marina . Primary producers, epibenthic prey, zooplankton, and fish were collected from August to November 2002 in shallow...
Resource Type:: Article
Full Text:: green algae marker (18:3n-3) to be –26‰. We report values of 18:3n-3 in the fall as depleted as –29

ScholarsArchive@OSU

Invasive red lionfish Pterois volitans blow directed jets of water at prey fish

Light-induced changes in the prey consumption and behavior of two juvenile planktivorous fish

Density-dependent effects of an introduced oyster, Crassostrea gigas, on a native intertidal seagrass, Zostera marina

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

Summertime foraging ecology of North Atlantic right whales

Response of bacteria to simulated upwelling phytoplankton blooms

Photoacclimation of natural phytoplankton communities

Comparison between environmental characteristics of larval bluefin tuna Thunnus thynnus habitat in the Gulf of Mexico and western Mediterranean Sea

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

Fatty acid biomarkers in coldwater eelgrass meadows: elevated terrestrial input to the food web of age-0 Atlantic cod Gadus morhua

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