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Spawning chinook salmon (Oncorhynchus tshawytscha) two years in a row : reconditioning for repeated gamete collection

Creator:: Mayer, Kent Corey
Abstract:: Spring chinook salmon, Oncorhynchus tshawytscha, in the Snake River Basin are listed as endangered under the Endangered Species Act. The typical life history of spring chinook salmon is semelparous. An experiment was performed to see if mature male spring chinook salmon parr could be reconditioned after hand-spawning and spawned in...
Resource Type:: Masters Thesis
Full Text:: Collection by Kent Corey Mayer A THESIS submitted to Oregon State University in partial fulfillment of

Ecology of breeding mallards : nest parasitism; brood survival; and habitat utilization

Creator:: Talent, Larry Gene
Abstract:: In 1976 and 1977 I examined three broad problems associated with the recruitment of young mallards, Anas platyrhynchos, in the Prairie Pothole Region of North Dakota. The three problems studied were: the effects of interspecific nest parasitism on production; the chronology and magnitude of total-brood loss during the brood-rearing period;...
Resource Type:: Dissertation
Full Text:: Breeding Mallards: Nest Parasitism; Brood Survival; and, Habitat Utilization by Larry Gene Talent A

Growth and food consumption of juvenile coho salmon exposed to natural and elevated fluctuating temperatures

Creator:: Everson, Larry B.
Abstract:: The growth and food consumption of juvenile coho salmon [Oncorhynchus kisutch (Walbaum)] exposed to natural and elevated fluctuating temperatures were studied in the laboratory with wild fish collected from a salmonid rearing stream. Control temperatures were similar to the temperature regime of a natural stream and the elevated temperatures were...
Resource Type:: Masters Thesis
Full Text:: Fluctuating Temperatures by Larry Bruce Everson A THESIS submitted to Oregon State University in partial

Some effects of life stage, temperature, pH and alkalinity on the acute toxicity of inorganic chloramines to young Coho salmon (Oncorhynchus kisutch)

Creator:: Lamperti, Larry Phillip
Abstract:: Acute toxicity bioassays (96-hr TL₅₀) were employed to determine the tolerance of coho salmon (Oncorhynchus kisutch) to inorganic chloramines at the alevin (yolk sac fry), yolk absorption, and early juvenile life stages. Any influence of changes in temperature, pH, and total alkalinity on the tolerance of juvenile coho for chloramines...
Resource Type:: Masters Thesis

Importance of the upper littoral zone as rearing area for larval and juvenile fishes in a Columbia River impoundment

Creator:: La Bolle, Larry D.
Abstract:: Shallow-water habitats (< 0.5 m depth) of the upper littoral zone of John Day Pool of the Columbia River were heavily used by young fishes in comparison with lower littoral and limnetic waters. Through the season, 96.9% of the 64,700 larvae and juveniles collected (corrected for effort) were from upper...
Resource Type:: Masters Thesis

An assessment of a closed greenhouse aquaculture and hydroponic system

Creator:: Head, William, 1946-
Resource Type:: Dissertation
Full Text:: Doctor of Philosophy in Fisherj!! and Wildlife presented on April 25, 1984. Title: An Assessment of a

Early development of the endocrine system in salmonids : regulation of sex differentiation and ontogeny of the stress response

Creator:: Floyd, Donald J.
Abstract:: Sex steroids, follicle stimulating hormone (FSH), luteinizing hormone (LH) and gonadotropin releasing hormone (GnRH) were measured in monosex and mixed sex populations of rainbow trout during early development. Steroids declined following fertilization, increased at hatch, then fell and remained constant thereafter. Trends toward differences in steroids between males and females...
Resource Type:: Dissertation
Full Text:: control fish were found 1 week after hatch and persisted for the remainder of the study. A decrease in

Life history examination of darkblotched rockfish (Sebastes crameri) off the Oregon coast

Creator:: Nichol, Daniel Gerard
Abstract:: The growth, size and age composition, mortality and reproduction of darkblotched rockfish (Sebastes crameri) were examined using fishery data and analysis of fish characteristics for samples collected of f the Oregon coast. A total of 1060 fish, caught by commercial groundfish and shrimp trawlers operating out of Newport, Coos Bay...
Resource Type:: Masters Thesis

Oxygen consumption during acclimation to increasing salinity in the freshwater euryhaline cichlid Oreochromis niloticus (Linnaeus, 1757)

Creator:: Alablani, Salam A.
Abstract:: Two sets of experiments measured changes in the oxygen consumption of the euryhaline teleost Oreochromis niloticus during acclimation to progressively increased salinity. Six acrylic respirometers were constructed for this purpose. The salinities tested were 9, 18, 27 and 36 ppt, with 36 ppt considered as full strength seawater. Fish were...
Resource Type:: Masters Thesis
Full Text:: THESIS OF Salam A. Alablani for the degree of Master of Science in Fisheries Science presented on March

Estimation of chronically safe zinc concentrations with steelhead trout (Salmo gairdneri) emphasizing ventilatory responses

Creator:: Cairns, Michael A.
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE ThESIS OF Michael A. Cairns for the degree

ScholarsArchive@OSU

Spawning chinook salmon (Oncorhynchus tshawytscha) two years in a row : reconditioning for repeated gamete collection

Ecology of breeding mallards : nest parasitism; brood survival; and habitat utilization

Growth and food consumption of juvenile coho salmon exposed to natural and elevated fluctuating temperatures

Some effects of life stage, temperature, pH and alkalinity on the acute toxicity of inorganic chloramines to young Coho salmon (Oncorhynchus kisutch)

Importance of the upper littoral zone as rearing area for larval and juvenile fishes in a Columbia River impoundment

An assessment of a closed greenhouse aquaculture and hydroponic system

Early development of the endocrine system in salmonids : regulation of sex differentiation and ontogeny of the stress response

Life history examination of darkblotched rockfish (Sebastes crameri) off the Oregon coast

Oxygen consumption during acclimation to increasing salinity in the freshwater euryhaline cichlid Oreochromis niloticus (Linnaeus, 1757)

Estimation of chronically safe zinc concentrations with steelhead trout (Salmo gairdneri) emphasizing ventilatory responses

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