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Impacts of multispecies parasitism on coho salmon (Oncorhynchus kisutch) in Oregon

Creator:: Ferguson, Jayde A.
Abstract:: Diseases caused by parasites are recognized as significant sources of mortality in wild fish populations. I assessed the impacts of multispecies parasitism on a threatened stock of juvenile coho salmon (Oncorhynchus kisutch). A crucial prerequisite to this research was proper identification of parasites, which can be difficult for species lacking...
Resource Type:: Dissertation
Full Text:: document the geographic distribution of infections in Oregon coastal juvenile coho salmon. I found 21

Patterns of natural selection and demography in coastal Oregon coho salmon (Oncorhynchus kisutch) populations : evidence from neutral and olfactory receptor gene-linked markers

Creator:: Johnson, Marc Aaron
Abstract:: For Pacific salmon, the evolution of local adaptations depends upon the species' propensity to return, or "home", to natal streams at time of reproduction. Pacific salmon use olfactory cues to guide homing behavior, yet little is known about the genetics of olfaction in salmon. In this study, I use putatively...
Resource Type:: Dissertation
Full Text:: describe the population genetic structure of Oregon Coastal coho salmon (Oncorhynchus kisutch

Regions to streams : spatial and temporal variation in stream occupancy patterns of coho salmon (Oncorhynchus kisutch) on the Oregon coast

Creator:: Flitcroft, Rebecca L.
Abstract:: Aquatic ecological investigation is expanding to encompass considerations of multiple scales across large landscapes. Much of the analysis included in this work focuses specifically on coho salmon (Oncorhynchus kisutch) in multiple subbasins on the Oregon coast. Coho salmon were chosen for an investigation of spatial scales, network connections, and life...
Resource Type:: Dissertation
Full Text:: Patterns of Coho Salmon (Oncorhynchus kisutch) on the Oregon Coast. Abstract

Some effects of dissolved oxygen concentration on feeding, growth and bioenergetics of juvenile Coho salmon

Creator:: Thatcher, T. O.
Abstract:: The effects of three levels of dissolved oxygen (8, 5 and 3 mg/l) upon the feeding, growth and bioenergetics of juvenile coho salmon, Oncorhynchus kisutch (Walbaum), were determined in laboratory studies. Experiments with individual fish were conducted during the summer, fall and spring to measure rates of food consumption, standard...
Resource Type:: Dissertation
Full Text:: Oregon State University. During this general acclima- tion period, the coho salmon were exposed daily to

The antibody response of juvenile coho salmon (Oncorhynchus kisutch) to Aeromonas salmonicida, the causative agent of furunculosis

Creator:: Paterson, William Douglas
Abstract:: This research was initiated to investigate the effects of various parameters on the immune response of juvenile coho salmon to Aeromonas salmonicida. The antibody response and development of protective immunity in juvenile coho salmon were followed after a single intraperitoneal injection of formalin killed A. salmonicida cells emulsified in Freund's...
Resource Type:: Dissertation
Full Text:: The antibody response of juvenile coho salmon

Hormonal and osmoregulatory aspects of smoltification in coho salmon, Oncorhynchus kisutch

Creator:: Specker, Jennifer Lee
Abstract:: Coho salmon smolts (Oncorhynchus kisutch) were transported at low and high densities. (12 and 120 g/L) for short and long periods (4 and 12 h). Because smolts can be transplanted directly to seawater, half of the fish in each treatment were transported to tanks containing seawater and half to tanks...
Resource Type:: Dissertation
Full Text:: , the number of commercial landings of coho salmon in Oregon was recently the lowest since 1961

Infection and immune response induced by Vibrio anguillarum in juvenile coho salmon (Oncorhynchus kisutch)

Creator:: Groberg, Warren J.
Abstract:: Immunity in juvenile coho salmon (Oncorhynchus kisutch) was evaluated after immunization against vibriosis by parenteral, oral or immersion methods. Relative levels of immunity were determined by protection of fish from experimental water-borne challenges with Vibrio anguillarum and by serum agglutination titers. Coho salmon eggs were exposed to bacterin during artificial...
Resource Type:: Dissertation
Full Text:: juvenile coho salmon experimentally infected with V. anguillarum. Animals were transported to the Oregon

Stress, osmoregulation, and the hormone cortisol in yearling coho salmon, Oncorhynchus kisutch

Creator:: Redding, Joseph Michael
Abstract:: Freshwater (FW) and seawater (SW) acclimated yearling coho salmon, Oncorhynchus kisutch, were subjected to severe confinement stress in FW, SW, or a medium (1/3 SW) that was approximately isosmotic to the fish's blood. Chronic stress caused osmotic imbalances in FW and SW, but not in 1/3 SW. In SW, blood...
Resource Type:: Dissertation

Influence of temperature on energy and material utilization by juvenile coho salmon

Creator:: Averett, R. C.
Resource Type:: Dissertation
Full Text:: and growth rates of coho salmon in Tobe Creek, Oregon. 64 INFLUENCE OF TEMPERATURE ON ENERGY AND

Geographic variation in timing of fry emergence and smolt migration of coho salmon (Oncorhynchus kisutch)

Creator:: Spence, Brian C.
Abstract:: The timing of two events in the early life history of coho salmon--emergence from the gravel and entry into the ocean--is presumed to have evolved to ensure maximum survival during these transition periods. Anthropogenic disturbances may disrupt the timing of these events to the detriment of salmon populations. Multivariate analyses...
Resource Type:: Dissertation

ScholarsArchive@OSU

Impacts of multispecies parasitism on coho salmon (Oncorhynchus kisutch) in Oregon

Patterns of natural selection and demography in coastal Oregon coho salmon (Oncorhynchus kisutch) populations : evidence from neutral and olfactory receptor gene-linked markers

Regions to streams : spatial and temporal variation in stream occupancy patterns of coho salmon (Oncorhynchus kisutch) on the Oregon coast

Some effects of dissolved oxygen concentration on feeding, growth and bioenergetics of juvenile Coho salmon

The antibody response of juvenile coho salmon (Oncorhynchus kisutch) to Aeromonas salmonicida, the causative agent of furunculosis

Hormonal and osmoregulatory aspects of smoltification in coho salmon, Oncorhynchus kisutch

Infection and immune response induced by Vibrio anguillarum in juvenile coho salmon (Oncorhynchus kisutch)

Stress, osmoregulation, and the hormone cortisol in yearling coho salmon, Oncorhynchus kisutch

Influence of temperature on energy and material utilization by juvenile coho salmon

Geographic variation in timing of fry emergence and smolt migration of coho salmon (Oncorhynchus kisutch)

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