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Changes in plasma cortisol concentration of juvenile salmonids during stress

Creator:: Strange, Richard Jackson
Abstract:: I investigated changes in plasma cortisol concentration over time in juvenile salmonids subjected to various stressors that might be encountered in their normal life cycle. This work was directed at finding a general indicator for stress in fish that could be used be used to aid fisheries research and management....
Resource Type:: Dissertation
Full Text:: acknowledge the support and assistance of the Research Section of the Oregon Department of Fish and Wildlife

Sexual maturation of coho salmon (Oncorhynchus kisutch) : induced ovulation, in vitro induction of final maturation and ovulation, and serum hormone and ion levels of salmon in seawater and fresh water

Creator:: Sower, Stacia, 1950-
Resource Type:: Dissertation
Full Text:: of Salmon in Seawater and Fresh Water by Stacia Ann Sower A THESIS submitted to Oregon State

Factors affecting coho salmon production in Oregon

Creator:: Scarnecchia, Dennis Leslie
Abstract:: Eight scale characters of known hatchery and wild coho salmon (Oncorhynchus kisutch) were compared, and a linear discriminant function was used to determine if hatchery and wild adult coho salmon could be correctly identified by their scales. Eighty-two percent of the hatchery and 89% of the wild fish were correctly...
Resource Type:: Masters Thesis
Full Text:: unmarked coho salmon sampled for scales at each port in 1977 by Oregon Department of Fish and Wildlife 10

Changes in the swimming performance, behavior and physiology of juvenile chinook salmon (Oncorhynchus tshawytcha) after exposure to one, two or three acute handling stresses

Creator:: Sigismondi, Linda A.
Abstract:: The performance of an organism or organismic subsystem is the result of the interaction between the performance capacity of the system and Its environment. Environmental conditions can stress an organism and thus affect it's performance. In this study, three whole organism performances were examined: critical swimming speed, fatigue time and...
Resource Type:: Dissertation
Full Text:: exposing groups of salmon in fresh water to a sudden bright light and measuring the time it took each fish

Phenotypic comparison of hatchery and wild coho salmon (Oncorhynchus kisutch) in Oregon, Washington, and California

Creator:: Hjort, Randy Carl
Abstract:: Phenotypic similarities of coho salmon (Oncorhynchus kisutch) stocks from Oregon, Washington, and California were compared using agglomerative and divisive cluster analyses. The phenotypic characters evaluated included the following: 1) the isozyme gene frequencies of transferrin and phosphoglucose isomerase; 2) the life history characters time of peak spawning and proportion of...
Resource Type:: Masters Thesis
Full Text:: OF HATCHERY AND WILD COHO SALMON (Oncorhynchus kisutch) IN OREGON, WASHINGTON, AND CALIFORNIA

Factors influencing the life history of spring chinook salmon (Oncorhynchus tshawytscha) spawning in the Columbia River watershed from 1960 to 1977

Creator:: Barton, Anne Christine Kristiansson
Resource Type:: Dissertation
Full Text:: spring chinook salmon above Bonneville Dam from 1957 to 1972 (Oregon Department of Fish and Wildlife

Multiple hemoglobin variations in coho salmon, Oncorhynchus kisutch, during parr-smolt transformation

Creator:: Pring, Cynthia Kay
Resource Type:: Masters Thesis
Full Text:: been observed after 2 weeks (personal communication, td.chard Ewing, Oregon Department of Fish and

The impacts of logjam removal on fish populations and stream habitat in Western Oregon

Creator:: Baker, Calvin Orville
Resource Type:: Masters Thesis
Full Text:: RvIOVAL ON FISH POPULATIONS AND STREAM HABITAT IN WESTERN OREGON Abstract approv A study of logjam

Growth and food consumption of juvenile coho salmon exposed to natural and elevated fluctuating temperatures

Creator:: Everson, Larry B.
Abstract:: The growth and food consumption of juvenile coho salmon [Oncorhynchus kisutch (Walbaum)] exposed to natural and elevated fluctuating temperatures were studied in the laboratory with wild fish collected from a salmonid rearing stream. Control temperatures were similar to the temperature regime of a natural stream and the elevated temperatures were...
Resource Type:: Masters Thesis
Full Text:: content of initial fish sample, mean percentage dry weight of Oregon moist pellet and caloric content of

Factors affecting the abundance of fall chinook salmon in the Columbia River

Creator:: Van Hyning, Jack M.
Abstract:: A study of the population ecology of Columbia River fall chinook salmon, Oncorhynchus tshawytscha (Walbaum), was made in an attempt to determine the cause of a serious decline in this run which occurred in the early 1950's. Fluctuations in abundance of major salmon runs the North Pacific were examined to...
Resource Type:: Dissertation
Full Text:: ocean chinook salmon production, in numbers of fish, from Vancouver Island to central Oregon and

ScholarsArchive@OSU

Changes in plasma cortisol concentration of juvenile salmonids during stress

Sexual maturation of coho salmon (Oncorhynchus kisutch) : induced ovulation, in vitro induction of final maturation and ovulation, and serum hormone and ion levels of salmon in seawater and fresh water

Factors affecting coho salmon production in Oregon

Changes in the swimming performance, behavior and physiology of juvenile chinook salmon (Oncorhynchus tshawytcha) after exposure to one, two or three acute handling stresses

Phenotypic comparison of hatchery and wild coho salmon (Oncorhynchus kisutch) in Oregon, Washington, and California

Factors influencing the life history of spring chinook salmon (Oncorhynchus tshawytscha) spawning in the Columbia River watershed from 1960 to 1977

Multiple hemoglobin variations in coho salmon, Oncorhynchus kisutch, during parr-smolt transformation

The impacts of logjam removal on fish populations and stream habitat in Western Oregon

Growth and food consumption of juvenile coho salmon exposed to natural and elevated fluctuating temperatures

Factors affecting the abundance of fall chinook salmon in the Columbia River

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