Index Catalog // ScholarsArchive@OSU

Winter ichthyoplankton biomass as a predictor of early summer prey fields and survival of juvenile salmon in the northern California Current

Creator:: Daly, Elizabeth A., Auth, Toby D., Brodeur, Richard D., and Peterson, William T.
Abstract:: Diets of juvenile coho Oncorhynchus kisutch and Chinook O. tshawytscha salmon are made up primarily of winter-spawning fish taxa in the late-larval and early juvenile stages that are undersampled in plankton and larger trawl nets. Although we have no direct measure of the availability of fish prey important to juvenile...
Resource Type:: Article
Full Text:: northern California Current Elizabeth A. Daly1,*, Toby D. Auth2, Richard D. Brodeur3, William T. Peterson3

Submersible observations of deep-reef fishes of Heceta Bank, Oregon

Creator:: Pearcy, William G., Stein, David L., Hixon, Mark Anthony, Pikitch, Ellen K., Barss, William H., and Starr, Richard M.
Abstract:: Rockfishes, Sebastes spp.. were the most numerous and speciose fishes seen during 16 submersible dives from 64 to 305 m depth in the vicinity of Heceta Bank off the coast of Oregon. Dense schools of juvenile rockfishes and large yellowtail rockfish, S. flavidus, were observed only over rocky, high relief...
Resource Type:: Article

Research, Monitoring, and Evaluation of Fish and Wildlife Restoration Projects in the Columbia River Basin: Lessons Learned and Suggestions for Large- Scale Monitoring Programs

Creator:: McDonald, Lyman L., Bilby, Robert, Bisson, Peter A., Coutant, Charles C., Epifanio, John M., Goodman, Daniel, Hanna, Susan S., Huntly, Nancy, Merrill, Erik, Riddell, Brian, Liss, William, Loudenslager, Eric J., Philipp, David P., Smoker, William, Whitney, Richard R., and Williams, Richard N.
Abstract:: El ano 2006 representa en dos sentidos una fecha critica para la cuenca del Rio Columbia y para los esfuerzos de recuperacion del salmon y la trucha arcoiris en la region Pacifico Noroeste: el 25 aniversario de la creacion del Consejo para la Conservacion y Poder del Noroeste y el...
Resource Type:: Article
Full Text:: , David P. Philipp, William Smoker, Richard R. Whitney, and Richard N. Williams McDonald is

Comparison of submersible-survey and hydroacoustic-survey estimates of fish density on a rocky bank

Creator:: Starr, Richard M., Fox, David S., Hixon, Mark Anthony, Tissot, Brian N., Johnson, Gary E., and Barss, William H.
Abstract:: Submersible belt-transect surveys along a rocky bottom were combined with acoustic surveys of the water column to estimate depth distribution and density of fishes at Stonewall Bank, Oregon in the northeastern Pacific Ocean from September through October 1991. The objectives of the study were to determine the proportion of fish...
Resource Type:: Article
Full Text:: hydroacoustic-survey estimates of fish density on a roclRichard M. Starr* Sea Grant Extension

Responses in growth rate of larval northern anchovy (Engraulis mordax) to anomalous upwelling in the northern California Current

Creator:: Takahashi, Motomitsu, Checkley, David M., Jr., Litz, Marisa N. C., Brodeur, Richard D., and Peterson, William T.
Abstract:: We examined variability in growth rate during the larval stage of northern anchovy (Engraulis mordax) in response to physical and biological environmental factors in 2005 and 2006. The onset of spring upwelling was anomalously delayed by 2–3 months until mid-July in 2005; in contrast, spring upwelling in 2006 began as...
Resource Type:: Article
Full Text:: ,1*� DAVID M. CHECKLEY JR,1 MARISA N.C. LITZ,2 RICHARD D. BRODEUR3 AND WILLIAM T. PETERSON3

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:: , Richard D. Brodeur, Frank J. Hernandez, Javier Quiñones, E. Marcelo Acha, Shin-ichi Uye, Hermes Mianzan

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:: @noaa.gov Increases in jellyfish biomass in the Bering Sea: implications for the ecosystem Richard D

State of the California Current 2011–2012: Ecosystems Respond To Local Forcing as La Nina Wavers and Wanes

Creator:: Bjorkstedt, Eric P., Goericke, Ralf, McClatchie, Sam, Weber, Ed, Watson, William, Lo, Nancy, Peterson, William T., Brodeur, Richard D., Auth, Toby, Fisher, Jennifer, Morgan, Cheryl, Peterson, Jay, Largier, John, Bograd, Steven J., Durazo, Reginaldo, Gaxiola-Castro, Gilberto, Lavaniegos, Bertha, Chavez, Francisco P., Collins, Curtis A., Hannah, Bob, Field, John, Sakuma, Keith, Satterthwaite, Will, O'Farrell, Michael, Hayes, Sean, Harding, Jeff, Sydeman, William J., Thompson, Sarah Ann, Warzybok, Pete, Bradley, Russell, Jahncke, Jaime, Golightly, Richard T., Schneider, Stephanie R., Suryan, Robert M., Gladics, Amanda J., Horton, Cheryl A., Kim, Sung Yong, Melin, Sharon R., DeLong, Robert L., and Abell, Jeffrey
Abstract:: The state of the California Current System (CCS) since spring 2011 has evolved in response to dissipation of La Niña through spring and summer, resurgence of cooler La Niña conditions in fall and winter, and finally a transition towards ENSO-neutral conditions in spring 2012. The resurgence of La Niña was...
Resource Type:: Article
Full Text:: service 8901 la jolla shores drive la jolla, cA 92037-1508 WilliAM t. PEtErsoN, ricHArd d. BrodEUr

Man in the marine environment

Creator:: Hogg, Thomas C., Smith, Courtland L., and Davis, Wilbur A.
Abstract:: This report has three primary objectives; it attempts to examine the relationship of various cultural systems to the marine environment, seeks to create an inventory of uses man has put the marine environment to, and makes an analysis of the attitudes of people towards the marine environment.
Resource Type:: Technical Report
Full Text:: . Makah Tribal Council, Neah Bay, Washington 7. McNeil, Dr. William, O.S.U. 8. Moore, Ben, Oregon Coast

Biologically Active Factors against the Monogenetic Trematode Gyrodactylus stellatus in the Serum and Mucus of Infected Juvenile English Soles

Creator:: Moore, Michelle M., Kaattari, Stephen L., and Olson, Robert E.
Abstract:: Length of survival of the monogenetic trematode Gyrodactylus stellatus in serum and mucus collected from English soles Pleuronectes vetulus at different stages of a laboratory epizootic suggests that both the mucus and serum may be involved in resistance to the parasite. In general, trematode survival was shorter in the serum...
Resource Type:: Article
Full Text:: of William and Mary, latus per fish, whereas the infection level in fish Gloucester Point, Virginia

ScholarsArchive@OSU

Winter ichthyoplankton biomass as a predictor of early summer prey fields and survival of juvenile salmon in the northern California Current

Submersible observations of deep-reef fishes of Heceta Bank, Oregon

Research, Monitoring, and Evaluation of Fish and Wildlife Restoration Projects in the Columbia River Basin: Lessons Learned and Suggestions for Large- Scale Monitoring Programs

Comparison of submersible-survey and hydroacoustic-survey estimates of fish density on a rocky bank

Responses in growth rate of larval northern anchovy (Engraulis mordax) to anomalous upwelling in the northern California Current

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

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

State of the California Current 2011–2012: Ecosystems Respond To Local Forcing as La Nina Wavers and Wanes

Man in the marine environment

Biologically Active Factors against the Monogenetic Trematode Gyrodactylus stellatus in the Serum and Mucus of Infected Juvenile English Soles

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