Index Catalog // ScholarsArchive@OSU

Bomb-produced radiocarbon validation of growth-increment crossdating allows marine paleoclimate reconstruction

Creator:: Kastelle, Craig R., Helser, Thomas E., Black, Bryan A., Stuckey, Matthew J., Gillespie, Darlene C., McArthur, Judy, Little, Diana, Charles, Karen D., and Khan, Reziah S.
Abstract:: The bivalve Pacific geoduck (Panopea generosa) has been used in the eastern North Pacific Ocean to create proxies for environmental factors such as temperature and oceanographic conditions. This type of research depends upon accurate age determination of Pacific geoducks, which historically was based on shell growth-increment counts. A recent study...
Resource Type:: Article
Full Text:: . Helser a, Bryan A. Black b, Matthew J. Stuckey b, Darlene C. Gillespie c, Judy McArthur c, Diana Little c

A comparison of the survival and migratory behavior of hatchery-reared and naturally reared steelhead smolts in the Alsea River and estuary, Oregon, using acoustic telemetry

Creator:: Johnson, Steven L., Power, James Harry, Wilson, Derek R., and Ray, James
Abstract:: We tracked three groups of steelhead Oncorhynchus mykiss smolts implanted with acoustic transmitters to determine whether the degree of hatchery domestication or the juvenile rearing environment (hatchery raceway versus natural stream) influenced migration timing and survival in the Alsea River and estuary, Oregon. Two groups consisted of age-1 smolts reared...
Resource Type:: Article
Full Text:: Telemetry Steven L. Johnson a , James Harry Power b , Derek R. Wilson c & James Ray c a Oregon Department of

Climate shifts the interaction web of a marine plankton community

Creator:: Francis, Tessa B., Scheuerell, Mark D., Brodeur, Richard D., Levin, Phillip S., Ruzicka, James J., Tolimieri, Nick, and Peterson, William T.
Abstract:: Climatic effects in the ocean at the community level are poorly described, yet accurate predictions about ecosystem responses to changing environmental conditions rely on understanding biotic responses in a food-web context to support knowledge about direct biotic responses to the physical environment. Here we conduct time-series analyses with multivariate autoregressive...
Resource Type:: Article
Full Text:: LL I P S . LEV IN * , JAMES J . RUZ ICKA ‡ , N ICK TOL IM IER I * and WILLIAM T. PETERSON

Recruitment, Growth and Mortality of an Antarctic Hexactinellid Sponge, Anoxycalyx joubini

Creator:: Dayton, Paul K., Kim, Stacy, Jarrell, Shannon C., Oliver, John S., Hammerstrom, Kamille, Fisher, Jennifer L., O'Connor, Kevin, Barber, Julie S., Robilliard, Gordon, Barry, James, Thurber, Andrew R., and Conlan, Kathy
Abstract:: Polar ecosystems are sensitive to climate forcing, and we often lack baselines to evaluate changes. Here we report a nearly 50-year study in which a sudden shift in the population dynamics of an ecologically important, structure-forming hexactinellid sponge, Anoxycalyx joubini was observed. This is the largest Antarctic sponge, with individuals...
Resource Type:: Article
Full Text:: Antarctic Hexactinellid Sponge, Anoxycalyx joubini Paul K. Dayton1*, Stacy Kim2, Shannon C. Jarrell1, John S

Near-Real-Time Acoustic Monitoring of Beaked Whales and Other Cetaceans Using a Seaglider (TM)

Creator:: Klinck, Holger, Mellinger, David K., Klinck, Karolin, Bogue, Neil M., Luby, James C., Jump, William A., Shilling, Geoffrey B., Litchendorf, Trina, Wood, Angela S., Schorr, Gregory S., and Baird, Robin W.
Abstract:: Correction 10 Aug 2012: Klinck H, Mellinger DK, Klinck K, Bogue NM, Luby JC, et al. (2012) Correction: Near-Real-Time Acoustic Monitoring of Beaked Whales and Other Cetaceans Using a Seaglider™. PLOS ONE 7(8): 10.1371/annotation/57ad0b82-87c4-472d-b90b-b9c6f84947f8.
Resource Type:: Article
Full Text:: , Neil M. Bogue2, James C. Luby2, William A. Jump2, Geoffrey B. Shilling2, Trina Litchendorf2, Angela S

Hydrothermal Discharge During Submarine Eruptions

Creator:: Baker, Edward T., Chadwick, Wi l l iam W. Jr., Cowen, James P., Dziak, Robert P., Rubin, Kenneth H., and Fornari, Daniel J.
Abstract:: Submarine volcanic eruptions and intrusions construct new oceanic crust and build long chains of volcanic islands and vast submarine plateaus. Magmatic events are a primary agent for the transfer of heat, chemicals, and even microbes from the crust to the ocean, but the processes that control these transfers are poorly...
Resource Type:: Article
Full Text:: Oceanography | Vol. 25, No. 1128 O c e a N i c S p r e a d i N g c e N t e r p r O c e S S e S | ridge

Microsatellites Reveal Population Identity of Individual Pink Salmon to Allow Supportive Breeding of a Population at Risk of Extinction

Creator:: Olsen, Jeffrey B., Bentzen, Paul, Banks, Michael A., Shaklee, James B., and Young, Sewall
Abstract:: Efforts to restore depressed populations of Pacific salmon Oncorhynchus spp. are often hampered by the inability to assign population identity to individuals in an admixture. This knowledge is of particular concern in supportive breeding programs, in which misidentification of individuals to population may result in progeny of mixed heritage, which,...
Resource Type:: Article
Full Text:: , James B. Shaklee c & Sewall Young c a Marine Molecular Biotechnology Laboratory, University 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:: .: +1 541 867 0382. E-mail address: Jim.Ruzicka@oregonstate.edu (J.J. Ruzicka). James J. Ruzicka a

Beached birds and physical forcing in the California Current System

Creator:: Parrish, Julia K., Bond, Nicholas, Nevins, Hannah, Mantua, Nathan, Loeffel, Robert, Peterson, William T., and Harvey, James T.
Abstract:: Seabirds have often been proposed as environmental indicators. Beached bird data may provide an additional data source and such data is efficacious because it can reliably be collected by volunteers. In addition to anthropogenic factors, such as oil spills, changes in the ocean-atmosphere can affect carcass beaching rate in 3...
Resource Type:: Article
Full Text:: , William T. Peterson5, James T. Harvey3 1School of Aquatic and Fishery Sciences, Box 355020, University of

Jellyfish, Forage Fish, and the World’s Major Fisheries

Creator:: Robinson, Kelly L., Ruzicka, James J., Decker, Mary Beth, Brodeur, Richard D., Hernandez, Frank J., Quiñones, Javier, Acha, E. Marcelo, Uye, Shin-ichi, Mianzan, Hermes, and Graham, William M.
Abstract:: A majority of the world’s largest net-based fisheries target planktivorous forage fish that serve as a critical trophic link between the plankton and upper-level consumers such as large predatory fishes, seabirds, and marine mammals. Because the plankton production that drives forage fish also drives jellyfish production, these taxa often overlap...
Resource Type:: Article
Full Text:: , zooplankton, and gelatinous zooplankton ecology. By Kelly L. Robinson, James J. Ruzicka, Mary Beth Decker

ScholarsArchive@OSU

Bomb-produced radiocarbon validation of growth-increment crossdating allows marine paleoclimate reconstruction

A comparison of the survival and migratory behavior of hatchery-reared and naturally reared steelhead smolts in the Alsea River and estuary, Oregon, using acoustic telemetry

Climate shifts the interaction web of a marine plankton community

Recruitment, Growth and Mortality of an Antarctic Hexactinellid Sponge, Anoxycalyx joubini

Near-Real-Time Acoustic Monitoring of Beaked Whales and Other Cetaceans Using a Seaglider (TM)

Hydrothermal Discharge During Submarine Eruptions

Microsatellites Reveal Population Identity of Individual Pink Salmon to Allow Supportive Breeding of a Population at Risk of Extinction

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

Beached birds and physical forcing in the California Current System

Jellyfish, Forage Fish, and the World’s Major Fisheries

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