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Effects of atrazine on olfactory-mediated behaviors in Pacific lamprey (Entosphenus tridentatus)

Creator:: Smith, April G.
Abstract:: Pacific lamprey (Entosphenus tridentatus) are experiencing population declines throughout their range. Xenobiotics could be an important risk factor for lamprey populations. Our goal was to establish if common herbicides, as used in forest management, could affect reproductive fitness. We determined that atrazine was a likely compound of greatest concern to...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF April G. Smith for the degree of Master of Science in Fisheries Science

Odor detection by Coho salmon (Oncorhynchus kisutch) : a laboratory bioassay and genetic basis

Creator:: Sandoval, William A.
Resource Type:: Masters Thesis
Full Text:: ) acclimation to Smith Farm and Sandy (S) coho salmon reared at and tested with water from S Hatchery after 7 (c

Pacific lamprey Entosphenus tridentatus : integrating traditional ecological knowledge and contemporary values into conservation planning, and stream substrate associations with larval abundance in the Willamette River Basin, Oregon, U.S.A.

Creator:: Sheoships, Gabe
Abstract:: Pacific lamprey Entosphenus tridentatus is a valuable icon and traditional food source for Indigenous people of western North America. Native Americans have utilized traditional ecological knowledge (TEK) since time immemorial to guide their ways of life, transmitting cultural values and natural history to further generational knowledge. Pacific lamprey are in...
Resource Type:: Masters Thesis
Full Text:: also like to thank my committee members: Court Smith, Jason Dunham, and Ben Clemens for their

Capture-related stressors impair sablefish, Anoplopoma fimbria, immune system function

Creator:: Lupes, Sarah C.
Abstract:: Sablefish, Anoplopoma fimbria, is a valuable North Pacific Ocean species caught in several commercial fisheries and is often discarded due to size or catch limits. Managers must account for the mortality of discarded fish to assess fish populations and harvest impacts, yet discard mortality rates of specific fisheries are generally...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Sarah C. Lupes for the degree of

Interrenal and metabolic responses to stress and their modifying factors in juvenile salmonid fishes

Creator:: Barton, Bruce Alexander
Abstract:: Genetic, ontogenetic, and environmental factors modified characteristic interrenal and glycemic responses to stress in juvenile salmonid fishes. During continuous confinement stress, plasma cortisol rose more quickly in chinook salmon, Oncorhynchus tshawytscha, acclimated to high rather than medium or low temperatures; hyperglycemia following either acute or chronic stress was also highest...
Resource Type:: Dissertation
Full Text:: of Fisheries and Wildlife; Frank L. Moore, Department of Zoology; and Alvin W. Smith, College of

Early self-sorting behavior in Chinook salmon is correlated with variation in growth, behavior and morphology later in life.

Creator:: Unrein, Julia R.
Abstract:: Juvenile Chinook salmon (Oncorhynchus tshawytscha) exhibit an array of life history tactics in Oregon's Willamette River Basin, yet we do not know to what extent it is driven by phenotypic plasticity or whether it is predetermined and how conditions in the early rearing environment may affect phenotype expression. We have...
Resource Type:: Masters Thesis
Full Text:: at 12°C, irrespective of separate or combined rearing, but at 7°C surface fish were significantly

Cool, pathogen free refuge lowers pathogen associated prespawn mortality of Willamette River Chinook salmon (Oncorhynchus tshawytscha)

Creator:: Benda, Susan
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). Our study determined if...
Resource Type:: Masters Thesis
Full Text:: in constant, cool temperature (13 ˚C), pathogen-free water at Oregon State University. Additional

The effects of elevated temperature and stress on immune function in juvenile chinook salmon (Oncorhynchus tshawytscha)

Creator:: Harrahy, Laura Nicole Martini
Abstract:: Stress, including extreme or rapidly changing temperatures, are known to have deleterious effects on fish health and physiology. This thesis examines the combined effects of elevated acclimation temperature and acute handling stress on the number of antibody producing cells, plasma lysozyme concentrations, and the number of pronephric leukocytes in juvenile...
Resource Type:: Masters Thesis
Full Text:: the number of pronephric leukocytes were both affected by acclimation to 21°C compared to 13°e

Chemodetection of threatening chemical stimuli by juvenile coho salmon (Oncorhynchus kisutch)

Creator:: Stone, Steven L.
Resource Type:: Masters Thesis
Full Text:: bars) by juvenile coho salmon. "C" represents control test. Numbers above the bars indicate the

Sex determination in Nile tilapia, Oreochromis niloticus: gene expression, masculinization methods, and environmental effects

Creator:: Sánchez, Wilfrido M. Contreras
Abstract:: Sex differentiation in fish is a labile process that allows sex inversion in several species. The inherent capacity of fish germ cells to differentiate into oocytes or spermatocytes constitutes a key factor allowing for functional sex inversion. This thesis set out to determine the mechanism involved in steroid-induced sex differentiation...
Resource Type:: Dissertation
Full Text:: Nile tilapia fry reared at 28°C occurs between 11 and 16 days post fertilization (dpf). Two three

ScholarsArchive@OSU

Effects of atrazine on olfactory-mediated behaviors in Pacific lamprey (Entosphenus tridentatus)

Odor detection by Coho salmon (Oncorhynchus kisutch) : a laboratory bioassay and genetic basis

Pacific lamprey Entosphenus tridentatus : integrating traditional ecological knowledge and contemporary values into conservation planning, and stream substrate associations with larval abundance in the Willamette River Basin, Oregon, U.S.A.

Capture-related stressors impair sablefish, Anoplopoma fimbria, immune system function

Interrenal and metabolic responses to stress and their modifying factors in juvenile salmonid fishes

Early self-sorting behavior in Chinook salmon is correlated with variation in growth, behavior and morphology later in life.

Cool, pathogen free refuge lowers pathogen associated prespawn mortality of Willamette River Chinook salmon (Oncorhynchus tshawytscha)

The effects of elevated temperature and stress on immune function in juvenile chinook salmon (Oncorhynchus tshawytscha)

Chemodetection of threatening chemical stimuli by juvenile coho salmon (Oncorhynchus kisutch)

Sex determination in Nile tilapia, Oreochromis niloticus: gene expression, masculinization methods, and environmental effects

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