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Intestinal Lesions and Parasites Associated with Senescence and Prespawn Mortality in Chinook Salmon (Oncorhynchus tshawytscha)

Creator:

Nervino, Stephanie A.

Abstract:

Pre-spawning mortality (PSM) presents a major problem for population recovery of spring Chinook salmon (Oncorhynchus tshawytscha) in the Willamette River basin. In certain reaches and years, PSM has exceeded 90%. Histology has been used as the primary diagnostic method to investigate PSM in the Chinook Salmon, and a collection of...

Resource Type:

Masters Thesis

Full Text:

to Dr. Julie Alexander for her help with the statistical analyses of my data and composition of
Deschutes River Salmonid Risk of Enteronecrosis in a Changing Climate

Creator:

Yusova, Sofiya

Abstract:

Ceratonova shasta is an obligate endoparasite of salmonid fish that is endemic to the Pacific Northwest of North America. The parasite has a complicated lifecycle with two distinct spore stages and two obligate hosts, a salmonid and a freshwater annelid. Myxospores released from infected salmonid hosts, infect Manayunkia occidentalis (freshwater...

Resource Type:

Masters Thesis

Full Text:

Bartholomew, Julie Alexander, Ivan Arismendi, and John Christensen, I am grateful for giving me the