Index Catalog // ScholarsArchive@OSU

The effects of single and multiple pathogen and parasite infections on juvenile chinook and coho salmon during early marine residency

Creator:: Sandell, Todd A.
Abstract:: Nearly 3000 juvenile Chinook (Oncorhynchus tshawytscha) and coho (O. kisutch) salmon captured in nearshore waters off the coasts of Washington and Oregon from 1999-2004 were tested for infection by Renibacterium salmoninarum, Nanophyetus salmincola, and skin metacercariae. First, three quantitative PCR primer/probe sets were compared for detection of R. salmoninarum; amplification...
Resource Type:: Dissertation
Full Text:: THE DISSERTATION OF Todd A. Sandell for the degree of Doctor of Philosophy in Microbiology

Erythrocytic inclusion body syndrome : a viral disease of salmonid fish

Creator:: Piacentini, Stephen Carl
Abstract:: Erythrocytic inclusion body syndrome (EIBS), a viral disease of salmon, was investigated. Reliable artificial infections were established in coho salmon (Oncorhynchus kisutch) via intraperitoneal injection of homogenized kidney, spleen, and blood from naturally infected animals. By examining the exposed fish periodically for viral inclusion bodies and hematocrits, the disease progression...
Resource Type:: Masters Thesis
Full Text:: nucleic acid. Erythrocytic Inclusion Body Syndrome: A Viral Disease of Salmonid Fish by Stephen Carl

Impacts of multispecies parasitism on coho salmon (Oncorhynchus kisutch) in Oregon

Creator:: Ferguson, Jayde A.
Abstract:: Diseases caused by parasites are recognized as significant sources of mortality in wild fish populations. I assessed the impacts of multispecies parasitism on a threatened stock of juvenile coho salmon (Oncorhynchus kisutch). A crucial prerequisite to this research was proper identification of parasites, which can be difficult for species lacking...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Jayde A. Ferguson for the degree of Doctor of Philosophy in

Control of macromolecular synthesis in Saccharomyces cerevisiae

Creator:: Wehr, Carl Timothy
Abstract:: Synthesis of total RNA, DNA, and protein was followed in a haploid yeast auxotroph during starvation for required amino acids and uracil, and during shift-up and shift-down conditions. During amino acid starvation, synthesis of macromolecular constituents was not immediately affected, reflecting the presence of large intracellular amino acid pools. Under...
Resource Type:: Dissertation
Full Text:: by Carl Timothy Wehr A THESIS submitted to Oregon State University in partial fulfillment of the

Immune responses of juvenile chinook salmon (Oncorhynchus tshawytscha) to p,p-̓DDE and tributyltin

Creator:: Misumi, Ichiro
Abstract:: In this thesis, we examined the effects of the exposures to anthropogenic pollutants on the fish, primarily juvenile chinook salmon, immune system using newly and recently developed immune assays. In addition, we developed a new assay for measuring immunocompetence of fish. In the first chapter, the Alamar Blue assay was...
Resource Type:: Masters Thesis
Full Text:: lymphocyte population based on cell size (Figure 1.1 c). a ) C U C O C U L j U ) C U C . ) 0 ) C U

Assessing disease impacts of hatcheries on downstream salmonids in the Willamette River Basin, Oregon

Creator:: Jakaitis, Michelle
Abstract:: Hatcheries are often perceived as a source of pathogen amplification, potentially increasing disease risk to free-ranging populations; at the same time, free-ranging fishes may introduce pathogens into hatcheries through untreated water sources. Many pathogens exist naturally within the environment (with the exception of introduced pathogens) and the presence of a...
Resource Type:: Masters Thesis
Full Text:: . McNeil, R. E. Noble, C. E. Smith, A. J. Talbot, G. A. Wedemeyer, and H. Westers. 2004. The Controversy

Factors affecting the Ceratomyxa shasta infectious cycle and transmission between polychaete and salmonid hosts

Creator:: Bjork, Sarah J.
Abstract:: Ceratomyxa shasta is a myxozoan parasite that infects salmonid fishes causing the disease ceratomyxosis that is characterized by severe hemorrhage and necrosis of the intestine and death of the fish host. Ceratomyxa shasta is endemic to the Pacific Northwestern United States and Canada, where epizootics are reported for both wild...
Resource Type:: Dissertation
Full Text:: , parasite dilution did have an effect. Actinospores were labeled with a fluorescent stain and C. shasta

Bacterial 16S ribosomal DNA analysis of pyrrolizidine alkaloid detoxifying enrichments from the ovine rumen

Creator:: Gray, Diane R.
Abstract:: Bacterial cultures enriched from sheep rumen fluid have demonstrated the ability to detoxify pyrrolizidine alkaloids (seneciphylline and jacobine) in tansy ragwort (Senecio jacobaea). The microbes are difficult to isolate using classical anaerobic techniques, therefore, microbes from two different enrichment cultures demonstrating similar degradation activity were identified using their 16S ribosomal...
Resource Type:: Masters Thesis
Full Text:: , Prevotella ruminicola, Escherichia coif, and from a minimal medium enrichment to, C. clostridiiforme, C

Photooxidative degradation of annual rye-grass straw to substrates enhancing rhodotorula mucilaginosa growth

Creator:: Park, Jerry Eugene
Abstract:: Annual ryegrass (Lolium multiflorum) is a major seed crop in the Willamette Valley of Oregon. Persistent crop diseases have necessitated annual field burning to protect future crops. This practice, while very effective for disease eradication, produces large quantities of air polluting smoke in the valley and a general wastage of...
Resource Type:: Dissertation
Full Text:: C, homogenized to a fine consistency and then Soxhlet extracted with hot water prior to

Hydrogen peroxide oxidation of annual ryegrass lignin and utilization of the products by Rhodotorula mucilaginosa

Creator:: Rockhill, Robert Clayton
Abstract:: Annual ryegrass (Lolium multiflorum) a major grass seed crop in the Willamette Valley, Oregon, is presently burned in the fields after harvest, causing considerable air pollution and general wastage of a material which could be used in the manufacture of economically important products. The cellulosic component of straw is relatively...
Resource Type:: Dissertation
Full Text:: percent H202 on the dissolution (o-o) of straw-lignin and dissolved solids (A-A) at pH 1 and 100 C. 3

ScholarsArchive@OSU

The effects of single and multiple pathogen and parasite infections on juvenile chinook and coho salmon during early marine residency

Erythrocytic inclusion body syndrome : a viral disease of salmonid fish

Impacts of multispecies parasitism on coho salmon (Oncorhynchus kisutch) in Oregon

Control of macromolecular synthesis in Saccharomyces cerevisiae

Immune responses of juvenile chinook salmon (Oncorhynchus tshawytscha) to p,p-̓DDE and tributyltin

Assessing disease impacts of hatcheries on downstream salmonids in the Willamette River Basin, Oregon

Factors affecting the Ceratomyxa shasta infectious cycle and transmission between polychaete and salmonid hosts

Bacterial 16S ribosomal DNA analysis of pyrrolizidine alkaloid detoxifying enrichments from the ovine rumen

Photooxidative degradation of annual rye-grass straw to substrates enhancing rhodotorula mucilaginosa growth

Hydrogen peroxide oxidation of annual ryegrass lignin and utilization of the products by Rhodotorula mucilaginosa

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Contributor

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search