Index Catalog // ScholarsArchive@OSU

Phylogeography and population genetic structure of double-crested cormorants (Phalacrocorax auritus)

Creator:: Mercer, Dacey M., Haig, Susan M., and Roby, Daniel D.
Abstract:: We examined the genetic structure of double-crested cormorants (Phalacrocorax auritus) across their range in the United States and Canada. Sequences of the mitochondrial control region were analyzed for 248 cormorants from 23 breeding sites. Variation was also examined at eight microsatellite loci for 409 cormorants from the same sites. The...
Resource Type:: Article
Full Text:: genetic structure of double-crested cormorants (Phalacrocorax auritus) Dacey M. Mercer • Susan M. Haig

Is there a common response to ultraviolet-B radiation by marine phytoplankton?

Creator:: Behrenfeld, Michael J., Chapman, John W., Hardy, John T., and Lee II, Henry
Abstract:: Global increases in ultraviolet-B radiation (UVBR) have the potential to alter marine primary production and to affect carbon cycles and marine trophic dynamics. Estimates of UVBR induced photoinhibition have varied greatly, indicating that a common dose-response by marine phytoplankton may not occur from place to place. An action spectrum describing...
Resource Type:: Article
Full Text:: . Behrenfeldl, John W. Chapman1, John T. ~ a r d y ~ , Henry Lee 113 ' AScI. U.S. EPA Environmental Research

Man and the Sea

Creator:: Hedgpeth, Joel W.
Abstract:: This document contains transcripts of Joel Hedgpeth’s series of lectures delivered over KPFA radio in Berkeley, California. These passionate lectures described the uses of oceanography, attempted to differentiate between oceanography and marine science, and encouraged students to pursue oceanography. Joel Hedgpeth was a director of the Hatfield Marine Science Center.
Resource Type:: Technical Report
Full Text:: Man and the Sea by Joel W • . Hedgpeth A series of

Dividing up the pie: Whales, fish, and humans as competitors

Creator:: Ruzicka, James J., Steele, John H., Ballerini, Tosca, Gaichas, Sarah K., and Ainley, David G.
Abstract:: Similarly structured food web models of four coastal ecosystems (Northern California Current, Central Gulf of Alaska, Georges Bank, southwestern Antarctic Peninsula) were used to investigate competition among whales, fishes, pinnipeds, and humans. Two analysis strategies simulated the effects of historic baleen and odontocete whale abundances across all trophic levels: food...
Resource Type:: Article
Full Text:: ,⇑, John H. Steele b, Tosca Ballerini c, Sarah K. Gaichas d, David G. Ainley e aCooperative Institute for

A Comparison of Conservation Perspectives Between Scientists, Managers, and Industry in the West Coast Groundfish Fishery

Creator:: Harms, John and Sylvia, Gilbert
Abstract:: There are several assumptions regarding the behavior and motivations of participants in fishery management that may hinder the effectiveness of the management process. In this research, we examine whether the commercial fishing industry is a homogeneous group whose decision-making is dominated by short-term economic considerations to the detriment of long-term...
Resource Type:: Article
Full Text:: Scientists, Managers, and Industry in the West Coast Groundfish Fishery John Harms a & Gil Sylvia b a

Buoyancy regulation and barotrauma in two species of nearshore rockfish

Creator:: Parker, Steven J., McElderry, Howard I., Rankin, Polly S., and Hannah, Robert W.
Abstract:: Fishes with closed swim bladders regulate buoyancy during depth changes by secreting and resorbing swim bladder gases. Forced ascent during fishery capture results in barotrauma caused by rapid expansion and exsolution of gases from body fluids. Pressure changes in hyperbaric chambers were used to examine changes in swim bladder integrity...
Resource Type:: Article
Full Text:: . Journal of Comparative Physiology B 155:319–331. Keniry, M. J., W. A. Brofka, W. H. Horns, and J. E

Submarine Magmatic-Hydrothermal Systems at the Monowai Volcanic Centre, Kermadec Arc

Creator:: Leybourne, Matthew I., Schwarz-Schampera, Ulrich, de Ronde, Cornel E. J., Baker, Edward T., Faure, Kevin, Walker, Sharon L., Butterfield, David A., Resing, Joe, Lupton, John, Hannington, Mark D., Massoth, Gary J., Embley, Robert W., Chadwick, William W., Jr., Clark, Malcolm, Timm, Christian, Graham, Ian J., and Wright, Ian C.
Abstract:: Authors listed on this Accepted Manuscript vary slightly from those listed on the Version of Record. Harold L. Gibson is an additional author on the published version.
Resource Type:: Article
Full Text:: , JOE 5 RESING 3, JOHN LUPTON 4, MARK D. HANNINGTON 5, GARY J. MASSOTH 1,6, ROBERT W. 6 EMBLEY 4

Effect of light on juvenile walleye pollock shoaling and their interaction with predators

Creator:: Ryer, Clifford H. and Olla, Bori L.
Abstract:: Research was undertaken to examine the influence of light intensity on the shoaling behavior, activity and anti-predator behavior of juvenile walleye pollock Theragra chalcogramma. Under a 12 h light/12 h dark photoperiod, juveniles displayed a diurnal shoaling and activity pattern, characterized by fish swimming in cohesive groups during the day,...
Resource Type:: Article
Full Text:: w h ~ c h have become widely scattered durlng the darkness may take longer to reform shoals at

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:: 4 identical glass tanks (50 X 50 X 50 cm, W X L X H) supported by a plexiglass platform and sur

Interannual variability in the Northern California Current food web structure: Changes in energy flow pathways and the role of forage fish, euphausiids, and jellyfish

Creator:: Ruzicka, James J., Brodeur, Richard D., Emmett, Robert L., Steele, John H., Zamon, Jeannette E., Morgan, Cheryl A., Thomas, Andrew C., and Wainwright, Thomas C.
Abstract:: The Northern California Current (NCC) is a seasonally productive and open ecosystem. It is home to both a diverse endemic community and to seasonally transient species. Productivity and food web structure vary seasonally, interannually, and decadally due to variability in coastal upwelling, climate-scale physical processes, and the migratory species entering...
Resource Type:: Article
Full Text:: ,⇑, Richard D. Brodeur b, Robert L. Emmett b, John H. Steele c, Jeannette E. Zamon d, Cheryl A. Morgan a

ScholarsArchive@OSU

Phylogeography and population genetic structure of double-crested cormorants (Phalacrocorax auritus)

Is there a common response to ultraviolet-B radiation by marine phytoplankton?

Man and the Sea

Dividing up the pie: Whales, fish, and humans as competitors

A Comparison of Conservation Perspectives Between Scientists, Managers, and Industry in the West Coast Groundfish Fishery

Buoyancy regulation and barotrauma in two species of nearshore rockfish

Submarine Magmatic-Hydrothermal Systems at the Monowai Volcanic Centre, Kermadec Arc

Effect of light on juvenile walleye pollock shoaling and their interaction with predators

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

Interannual variability in the Northern California Current food web structure: Changes in energy flow pathways and the role of forage fish, euphausiids, and jellyfish

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