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Evaluation of a louver guidance facility used to sample salmon and trout emigrants

Creator:: Holubetz, Terry Bruce
Abstract:: The subject of this thesis is an evaluation of a louver facility in the Lemhi River, Idaho. The louver facility was designed to guide juvenile chinook salmon and steelhead trout into a trap in order to sample downstream migrant populations. The study was designed to determine: (1) if the catch...
Resource Type:: Masters Thesis
Full Text:: frequency of tail beat was reported by Gray (1957). Louver efficiency is probably directly correlated with

The migratory pattern of audlt sockeye salmon (Oncorhynchus nerka) in Bristol Bay as related to the distribution of their home-river waters

Creator:: Straty, Richard R.
Abstract:: The individual stocks of sockeye salmon that make up the annual spawning migration to the Bristol Bay region of Western Alaska are produced in the lakes and streams of ten major river systems, which discharge into the bay over a shoreline distance of 120 miles. The hypothesis adopted in this...
Resource Type:: Dissertation
Full Text:: sockeye salmon in the Bering Sea along approximately long. 170° W. , June 17-28, 1958. 119 42. Gill net

Toxicity of pentachlorophenol to trout alevins

Creator:: Chapman, Gary A.
Abstract:: A study was conducted at the Pacific Cooperative Water Pollution and Fisheries Research Laboratories, Oregon State University, to determine the effects of pentachlorophenol (PCP) on the early developmental stages of the steelhead trout (Salmo gairdneri). Experiments were performed from May, 1965, through May, 1968, on the survival, growth, and bioenergetics...
Resource Type:: Dissertation
Full Text:: Technical Advisory Committee on Water Quality Criteria (Ti. S. F. W. P. C A. 1968); portions of the

Definitive hosts of the trematode vector, Nanophyetus salmincola

Creator:: Schlegel, Michael Wesley
Abstract:: Of 149 wild animals from two western Oregon river drainage areas and other localities in which "salmon poisoning" disease (SPD) is enzootic, including ten mammalian and two avian species, 79 harbored Nanophyetus salmincola, the SPD vector. The shorttail weasel, Mustela erminea; river otter, Lutra canadensis; spotted skunk, Spilogale putorius; Norway...
Resource Type:: Masters Thesis
Full Text:: published according to the following reference. Schlegel, M. W. , S. E. Knapp and R. E. Millemann. 1968

Fertilization of salmonid eggs with cryopreserved sperm

Creator:: Ott, Alvin G.
Abstract:: Numerous fishery researchers have attempted to preserve viable fish sperm, but only three investigations were successful in the fertilization of fresh eggs with frozen and thawed sperm: Blaxter (1953); Hoyle and Idler (1968); and Graybill and Horton (1969). Significant advances reported in this thesis were: the development of suitable life...
Resource Type:: Masters Thesis
Full Text:: motility of steelhead trout sperm in samples extended prior to the addition of water (Gray- bill, 1968

On reconciling lake classification with the evolution of four oligotrophic lakes in Oregon

Creator:: Larson, Douglas W. (Douglas William), 1949-
Resource Type:: Dissertation
Full Text:: gratitude to Mr. A. A. Prigge, Mr. L. D. Evans, Mr. W. R. Boring, Mr. W. M. Pressentin, Mr. G. R

An analysis of the population dynamics of selected avian species

Creator:: Henny, Charles J.
Abstract:: The impact that pesticides may have had on the mortality rates and productivity rates of non-game birds during the last 25 years was evaluated by studying the population dynamics of 16 species. A mathematical model showing the relationships between population parameters that yielded stable populations was developed. The information needed...
Resource Type:: Dissertation
Full Text:: , criticism, and encouragement throughout the study. Special recognition is also given to Dr. W. Scott

Plumage development and growth of young whooping cranes

Creator:: Stephenson, James Dale
Abstract:: Plumage development and growth were studied in young whooping cranes (Grus americana) from hatching until 450 days of age. The downy stage of the young cranes lasted about six weeks; the development of the juvenal plumage took until 100 days of age, and the molt to the adult or all...
Resource Type:: Masters Thesis
Full Text:: 165 grams. 6 Eleven Days (Figure 3) The tip of the bill is drab-gray, the narrow band of benzo

The parr-smolt metamorphosis in steelhead trout as affected by photoperiod and temperature

Creator:: Wagner, Harry Henry
Abstract:: See pdf.
Resource Type:: Dissertation
Full Text:: acknowledged. Dr. W. S. Overton made substantial contributions to the experimental design. This study was

An evaluation of attempts to reestablish the sea otter in Oregon

Creator:: Jameson, Ronald James
Abstract:: During the summers of 1970 and 1971 a total of 95 sea otter (Enhydra lutris) were shipped to Oregon from Amchitka Island, Alaska. The 1970 shipment consisted of 31 otter which were to be released on the southern Oregon Coast near the town of Port Orford. Two of these animals...
Resource Type:: Masters Thesis
Full Text:: sea otter was first recorded in Oregon in 1772 when Robert Gray purchased 150 pelts from Indians near

ScholarsArchive@OSU

Evaluation of a louver guidance facility used to sample salmon and trout emigrants

The migratory pattern of audlt sockeye salmon (Oncorhynchus nerka) in Bristol Bay as related to the distribution of their home-river waters

Toxicity of pentachlorophenol to trout alevins

Definitive hosts of the trematode vector, Nanophyetus salmincola

Fertilization of salmonid eggs with cryopreserved sperm

On reconciling lake classification with the evolution of four oligotrophic lakes in Oregon

An analysis of the population dynamics of selected avian species

Plumage development and growth of young whooping cranes

The parr-smolt metamorphosis in steelhead trout as affected by photoperiod and temperature

An evaluation of attempts to reestablish the sea otter in Oregon

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