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Effects of juvenile steelhead on juvenile chinook salmon behavior and physiology

Creator:: Kelsey, D. A., Schreck, Carl B., Congleton, J. L., and Davis, L. E.
Abstract:: Experiments were designed to determine whether and how steelhead Oncorhynchus mykiss affect chinook salmon O. tshawytscha when the two species are confined together. In a behavioral experiment, we observed groups of juvenile chinook salmon and steelhead together and groups of chinook salmon alone to determine whether the steelhead were aggressive...
Resource Type:: Article
Full Text:: Steelhead on Juvenile Chinook Salmon Behavior and Physiology D. A. KELSEY*1 Oregon Cooperative Fish and

Responses by Pacific Halibut to Air Exposure: Lack of Correspondence among Plasma Constituents and Mortality

Creator:: Davis, Michael W. and Schreck, Carl B.
Abstract:: Age-1 and age-2 Pacific halibut Hippoglossus stenolepis were exposed to a range of times in air (0-60 min) and air temperatures (10 degrees C or 16 degrees C) that simulated conditions on deck after capture to test for correspondence among responses in plasma constituents and mortality. Pacific halibut mortality generally...
Resource Type:: Article
Full Text:: : Lack of Correspondence among Plasma Constituents and Mortality M. W. Davis a & C. B. Schreck b a

Capture-Related Stressors Impair Immune System Function in Sablefish

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:: ://www.tandfonline.com/loi/utaf20 Capture-Related Stressors Impair Immune System Function in Sablefish Sarah C. Lupes a

Distribution, Stock Composition and Timing, and Tagging Response of Wild Chinook Salmon Returning to a Large, Free-Flowing River Basin

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:: Response of Wild Chinook Salmon Returning to a Large, Free-Flowing River Basin Distribution, Stock

Cool, Pathogen-Free Refuge Lowers Pathogen-Associated Prespawn Mortality of Willamette River Chinook Salmon

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:: Chinook Salmon at 13�C prevented expression of lethal pathogenesis. Overall, holding could be a viable

Potential classification of sex and stage of gonadal maturity of wild white sturgeon using blood plasma indicators

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: 407–417. Beamesderfer, R. C., T. A. Rien, and A. A. Nigro. 1995

Comparison of Predator Avoidance Capabilities with Corticosteroid Levels Induced by Stress in Juvenile Coho Salmon

Creator:: Olla, Bori L., Davis, Michael W., and Schreck, Carl B.
Abstract:: The relationship between predator avoidance deficits induced by a simple handling stress and the level of plasma corticosteroids was determined for juvenile coho salmon Oncorhynchus kisutch. Groups of fish were held out of water for 1 min, then allowed to recover from this stress for 1, 90, or 240 min....
Resource Type:: Article
Full Text:: . Olla a , Michael W. Davis a & Carl B. Schreck b a National Marine Fisheries Service, Hatfield Marine

The effects of electroshock on immune function and disease progression in juvenile spring chinook salmon

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:: Columbia River. North American Jour- nal of Fisheries Management 14:334–339. Maule, A. G., and C. B

The response to forced decompression in six species of Pacific rockfish

Creator:: Pribyl, Alena L., Kent, Michael L., Parker, Steven J., and Schreck, Carl B.
Abstract:: Pacific rockfish experience high discard mortality when captured owing to a condition called barotrauma,which is caused by the change in pressure during capture. This condition appears to be species specific at the macroscopic level; however, little is known about the microscopic tissue-level effects of barotrauma. Determining whether tissue-level injuries are...
Resource Type:: Article
Full Text:: . Pribyl a b , Michael L. Kent c , Steven J. Parker d e & Carl B. Schreck f a Oregon Cooperative Fish and

Characterization of the physiological stress response in lingcod

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:: –221 in G. K. Iwama, A. D. Pickering, J. P. Sumpter, and C. B. Schreck, editors. Fish stress and health

ScholarsArchive@OSU

Effects of juvenile steelhead on juvenile chinook salmon behavior and physiology

Responses by Pacific Halibut to Air Exposure: Lack of Correspondence among Plasma Constituents and Mortality

Capture-Related Stressors Impair Immune System Function in Sablefish

Distribution, Stock Composition and Timing, and Tagging Response of Wild Chinook Salmon Returning to a Large, Free-Flowing River Basin

Cool, Pathogen-Free Refuge Lowers Pathogen-Associated Prespawn Mortality of Willamette River Chinook Salmon

Potential classification of sex and stage of gonadal maturity of wild white sturgeon using blood plasma indicators

Comparison of Predator Avoidance Capabilities with Corticosteroid Levels Induced by Stress in Juvenile Coho Salmon

The effects of electroshock on immune function and disease progression in juvenile spring chinook salmon

The response to forced decompression in six species of Pacific rockfish

Characterization of the physiological stress response in lingcod

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