Index Catalog // ScholarsArchive@OSU

Creator:: Crippen, Tawni L., Bootland, Linda M., Leong, Jo-Ann C., Fitzpatrick, Martin S., Schreck, Carl B., and Vella, Anthony T.
Abstract:: A technique that uses hypotonic lysis of erythrocytes was optimized for the purification of leukocytes from the peripheral blood and anterior kidney (pronephros) of rainbow trout Oncorhynchus mykiss. Comparisons of initial blood dilution (1:2, 1:4, and 1:6) and the time of exposure to hypotonic conditions (10, 20, and 40 s)...
Resource Type:: Article
Full Text:: -ANN C. LEONG Department of Microbiology and Center for Salmon Disease Research, Oregon State

Creator:: Webb, Molly A. H., Feist, Grant W., Foster, Eugene P., Schreck, Carl B., and Fitzpatrick, Martin S.
Abstract:: Twenty-two steelhead trout (Salmo gairdneri) containing coded wire tags (CWT's) were captured in gillnets fished by the Oshoro-Maru in the Gulf of Alaska and along 180 during 1982-85. These fish originated from North American streams and hatcheries in British Columbia, Idaho, and Washington. One fish was age 0.1, 16 were...
Resource Type:: Article
Full Text:: . Environmental Biology of Fishes 48:265–278. Feist, G., C. B. Schreck, M. S. Fitzpatrick, and J. M. Redding

Creator:: Lupes, Sarah C., Davis, Michael W., Olla, Bori L., and Schreck, Carl B.
Abstract:: The sablefish Anoplopoma fimbria is a valuable North Pacific Ocean species that, when not targeted in various commercial fisheries, is often a part of discarded bycatch. Predictions of the survival of discarded fish are dependent on understanding how a fish responds to stressful conditions. Our objective was to describe the...
Resource Type:: Article
Full Text:: ., L. M. Bootland, J. C. Leong, M. S. Fitzpatrick, C. B. Schreck, and A. T. Vella. 2001. Analysis of

Creator:: Benda, Susan E., Naughton, George P., Caudill, Christopher C., Kent, Michael L., and Schreck, Carl B.
Abstract:: Spring Chinook Salmon Oncorhynchus tshawytscha are transported above dams in the Willamette River to provide access to blocked spawning habitat. However, 30–95% of these transplants may die before spawning in some years. To varying degrees, salmon in other tributaries—both blocked and unblocked—have similar prespawn mortality (PSM) rates. Our study determined...
Resource Type:: Article
Full Text:: -Associated Prespawn Mortality of Willamette River Chinook Salmon Benda, S. E., Naughton, G. P., Caudill, C

Creator:: Clemens, Benjamin J., Mesa, Matthew G., Magie, Robert J., Young, Douglas A., and Schreck, Carl B.
Abstract:: We describe the migration distances and timing of the adult Pacific lamprey, Entosphenus tridentatus, in the Willamette River Basin (Oregon, U.S.A.). We conducted aerial surveys to track radio-tagged fish upstream of a major waterfall and hydropower complex en route to spawning areas. We detected 24 out of the 43 fish...
Resource Type:: Article
Full Text:: spring to early summer period before stopping during the summer, when peak river temperatures (≥20°C

Creator:: Milston, Ruth H., Davis, Michael W., Parker, Steven J., Olla, Bori L., Clements, Shaun, and Schreck, Carl B.
Abstract:: The goal of this study was to describe the duration and magnitude of the physiological stress response in lingcod Ophiodon elongatus after exposure to brief handling and sublethal air stressors. The response to these stressors was determined during a 24‐h recovery period by measuring concentrations of plasma cortisol, lactate, glucose,...
Resource Type:: Article
Full Text:: , Oxon, UK. Schreck, C. B., W. Contreras-Sanchez, and M. S. Fitzpatrick. 2001. Effects of stress on

Creator:: VanderKooi, Scott P., Maule, Alec G., and Schreck, Carl B.
Abstract:: Although much is known about the effects of electroshock on fish physiology, consequences to the immune system and disease progression have not received attention. Our objectives were to determine the effects of electroshock on selected immune function in juvenile spring chinook salmon Oncorhynchus tshawytscha, the mechanism of any observed alteration,...
Resource Type:: Article
Full Text:: ., C. D. Volz, and P. S. Trefethen. 1954. Mortality of salmon fingerlings exposed to pulsating direct

Creator:: Dolan, Brian P., Fisher, Kathleen M., Colvin, Michael E., Benda, Susan E., Peterson, James T., Kent, Michael L., and Schreck, Carl B.
Abstract:: Adult Chinook salmon (Oncorhynchus tshawytscha) migrate from salt water to freshwater streams to spawn. Immune responses in migrating adult salmon are thought to diminish in the run up to spawning, though the exact mechanisms for diminished immune responses remain unknown. Here we examine both adaptive and innate immune responses as...
Resource Type:: Article
Full Text:: . Comp. Immunol. 38 (2012) 27e29. [3] A.G. Maule, R. Schrock, C. Slater, M.S. Fitzpatrick, C.B. Schreck

Creator:: Eiler, John H., Masuda, Michele M., Spencer, Ted R., Driscoll, Richard J., and Schreck, Carl B.
Abstract:: Chinook Salmon Oncorhynchus tshawytscha returns to the Yukon River basin have declined dramatically since the late 1990s, and detailed information on the spawning distribution, stock structure, and stock timing is needed to better manage the run and facilitate conservation efforts. A total of 2,860 fish were radio-tagged in the lower...
Resource Type:: Article
Full Text:: Basin Eiler, J. H., Masuda, M. M., Spencer, T. R., Driscoll, R. J., & Schreck, C. B. (2014

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