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Filtering by: Has journal Pacific Science Contributor advisor sim Schreck, Carl B. Committee Member Noakes, David L.G.

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
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:

ABSTRACT OF THE THESIS OF Julia R. Unrein for the degree of Master of Science in Fisheries Science
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:

OF Susan Benda for the degree of Master of Science in Fisheries Science presented on May 30