Index Catalog // ScholarsArchive@OSU

Snowy plover nesting ecology on the Oregon coast

Creator:: Wilson, Ruth A.
Abstract:: The possibility of reduced abundance of western snowy plovers (Charadrius alexandrinus nivosus) in the face of an altered habitat prompted a study of snowy plover breeding activities and nesting habitat on the Oregon coast during 1978 and 1979. At 4 study areas with varying levels of recreational use, nests were...
Resource Type:: Masters Thesis

Effects of o,p'-DDE on the immune system of juvenile chinook salmon (Oncorhynchus tshawytscha)

Creator:: Milston, Ruth Helen
Abstract:: Environmental factors such as chemical contamination can have immunomodulatory effects on the immune response of fish and may be contributing to the decline in salmonid populations by augmenting disease susceptibility. Xenobiotics can interfere with the immune system at several levels of complexity, and different immune cells and processes have variable...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Ruth Helen Milston for the degree

Natal source contributions of Pacific cod (Gadus macrocephalus) recruits in the southeastern Bering Sea

Creator:: DiMaria, Ruth A.
Abstract:: Effective and sustainable fisheries management not only depends on identifying and defining stocks (fundamental unit of management), but also on having knowledge of factors influencing the abundance, distribution and connectivity of stocks. Population structure of Pacific cod (Gadus macrocephalus) in the southeastern Bering Sea (EBS) remains unresolved although genetic data...
Resource Type:: Masters Thesis
Full Text:: Ruth A. DiMaria for the degree of Master of Science in Fisheries Science presented on July 14, 2011

Myxosporidans of rainbow and cutthroat trout broodstocks from Oregon hatcheries

Creator:: Sweet, Diane Ruth
Abstract:: Oregon Department of Fish and Wildlife trout broodstocks from Alsea, Cole Rivers, Klamath, Leaburg, Oak Springs, Roaring River and Willamette Fish Hatcheries were examined for the presence of myxosporidans. Wild fish collected from waters above these hatcheries were also examined. Seven species of myxosporidans were observed in the hatchery broodfish:...
Resource Type:: Masters Thesis
Full Text:: from Oregon hatcheries AN ABSTRACT OF THE THESIS OF Diane Ruth Sweet for the degree of Master of

Characterization of the physiological stress response in lingcod

Creator:: Milston, Ruth H., Davis, Michael W., Parker, Steven J., Olla, Bori L., Clements, Shaun, and Schreck, Carl B.
Abstract:: The goal of this study was to describe the duration and magnitude of the physiological stress response in lingcod Ophiodon elongatus after exposure to brief handling and sublethal air stressors. The response to these stressors was determined during a 24‐h recovery period by measuring concentrations of plasma cortisol, lactate, glucose,...
Resource Type:: Article
Full Text:: Stress Response in Lingcod RUTH H. MILSTON* Department of Fisheries and Wildlife and Oregon Cooperative

Temperature effects on Pacific oyster embryos subjected to spent sulfite liquor

Creator:: Will, Theodore
Abstract:: An exploratory study of 48-hour Pacific oyster embryo bioassays employing spent sulfite liquor (SSL) in test concentrations ranging from 10 to 45 ppm was made at two incubation temperatures, 20° and 24° C. Fourteen separate bioassays, each employing embryos originating from three to four different parentages, were conducted at the...
Resource Type:: Masters Thesis
Full Text:: presented Typed by Ruth Chadwick /ÿßj - - . - - - - _ - :,... 7/ c ACKNOWLEDGMENTS Grateful

Evaluation of combining ability in mosquitofish

Creator:: Pongthana, Nuanmanee
Abstract:: Two replications of a half dial lei cross experiment were performed among four inbred lines of mosquitofish, Gambusia affinis. These inbred lines originated from three random-bred stocks: OR, TX and CD. The experiment was conducted as a completely randomized design. Experimental material consisted of parental lines and F₁ populations maintained...
Resource Type:: Masters Thesis
Full Text:: : Redacted for Privacy e-15r. ames E. Lannan Two replications of a half diallel cross experiment were per

Studies on the host-parasite relationships of the "salmon poisoning" trematode--Nanophyetus salmincola (Chapin)

Creator:: Baldwin, Norman Lewis
Resource Type:: Masters Thesis
Full Text:: . Raymond E. Millernann The effect of experimental infection with the "salmon poiscning" fluke

Some aspects of the comparative ecology of fishes associated with juvenile sockeye salmon, Oncorhynchus nerka (Walbaum), in the lakes of the Naknek river system, Alaska

Creator:: Wallace, Richard L.
Abstract:: A study of the distribution, relative abundance and diet of fishes sympatric with juvenile sockeye salmon, Oncorhynchus nerka (Walbaum), within the freshwater nursery areas of the Naknek River system was undertaken from 1961 to 1963. The study was part of an extensive investigation to determine what factors in the freshwater...
Resource Type:: Dissertation
Full Text:: , Robert J. Ellis and Richard R. Straty. Thanks are especially due Dr. Carl E. Bond, Professor of

Habitat relationships of birds and young-growth Douglas-fir in northwestern California

Creator:: Marcot, Bruce G.
Abstract:: Ninety-one species of birds were surveyed in grass/forb, early and late shrub/sapling, pole, and medium sawtimber stages of young-growth Douglas-fir in northwestern California; patterns of bird distribution and abundance were related to habitat conditions and even-age silvicultural treatments. Seven species (band-tailed pigeon, western wood pewee, dusky flycatcher, western bluebird, fox...
Resource Type:: Dissertation
Full Text:: Relationships of Birds and Young- Growth Douglas-fir in North estern California Abstract approved: Dr. E. Ch0

ScholarsArchive@OSU

Snowy plover nesting ecology on the Oregon coast

Effects of o,p'-DDE on the immune system of juvenile chinook salmon (Oncorhynchus tshawytscha)

Natal source contributions of Pacific cod (Gadus macrocephalus) recruits in the southeastern Bering Sea

Myxosporidans of rainbow and cutthroat trout broodstocks from Oregon hatcheries

Characterization of the physiological stress response in lingcod

Temperature effects on Pacific oyster embryos subjected to spent sulfite liquor

Evaluation of combining ability in mosquitofish

Studies on the host-parasite relationships of the "salmon poisoning" trematode--Nanophyetus salmincola (Chapin)

Some aspects of the comparative ecology of fishes associated with juvenile sockeye salmon, Oncorhynchus nerka (Walbaum), in the lakes of the Naknek river system, Alaska

Habitat relationships of birds and young-growth Douglas-fir in northwestern California

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