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Filtering by: Subject Chinook salmon -- Parasites -- Oregon -- Willamette River Watershed

Distribution and coinfection of microparasites and macroparasites in juvenile salmonids in three upper Willamette River tributaries

Creator:

Roon, Sean Robert

Abstract:

Wild fish populations are typically infected with a variety of micro- and macroparasites that may affect fitness and survival, however, there is little published information on parasite distribution in wild juvenile salmonids in three upper tributaries of the Willamette River, OR. The objectives of this survey were to document (1)...

Resource Type:

Masters Thesis

Full Text:

) Outmigration of juvenile Chinook salmon in the lower Willamette River, Oregon. Northwest Science 81, 173–190
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:

Chinook salmon in the Upper Willamette Basin display considerable variation in length of juvenile
Climate warming effects on the life cycle of the parasite Ceratomyxa shasta in salmon of the Pacific Northwest

Creator:

Chiaramonte, Luciano V.

Abstract:

Aquatic ecosystems continue to be increasingly affected by climate warming. For salmonids in the Pacific Northwest of North America, increasing temperatures pose tighter thermal constraints on their habitat use as well as aspects of their individual performance, such as disease resistance. This thesis examines the effect of temperature on the...

Resource Type:

Masters Thesis

Full Text:

juvenile Chinook and coho salmon an area of lower parasite doses and cooler temperatures than the main