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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

Bioaccumulation profiles of chemical contaminants in fish from the lower Willamette River, Portland Harbor superfund site and human health risk assessment

Creator:: Sethajintanin, Doolalai
Abstract:: Concentrations of twenty-five PCBs, fifteen organochiorine pesticides and mercury were determined in recreational fish from the Willamette River, Oregon during the summer of 2000. Thirty-six fish samples of three fish species including black crappie, smalimouth bass and con-rn-ion carp were analyzed. The data reported here provides new information and recent...
Resource Type:: Masters Thesis
Full Text:: biological and physiological data of fish sample 23 TEQ concentrations (pg/g, wet weight) in whole fish .33

Passive sampling devices as biological surrogates for evaluating seasonal bioavailability of hydrophobic organic contaminants in surface water

Creator:: Sethajintanin, Doolalai
Abstract:: The seasonal distribution of bioavailable organochiorine contaminants in surface water and the potential environmental factors influencing their bioavailability were evaluated. The study was carried at the lower Willamette River at Portland Harbor, Oregon where surface water runoff varied according to season. Bioavailable water concentrations of DDTs and PCBs were determined...
Resource Type:: Dissertation
Full Text:: Contaminants in Surface Water. Abstract approved Kim A. Anderson The seasonal distribution of bioavailable

The effects on the performance of broilers consuming calcium, potassium, and sodium nitrates and nitrites from the drinking water

Creator:: Reeder, Julie A.
Abstract:: Four experiments were carried out with broiler chicks from day-old to three or four weeks of age to assess the effects of nitrates and nitrites from calcium, potassium, and sodium salts in the drinking water of broilers on growth, body weights, feed utilization, blood chemistries, liver tissues, and lipid oxidation...
Resource Type:: Masters Thesis
Full Text:: DISCUSSION 20 4. EFFECT OF NITRITE FROM SODIUM, POTASSIUM, AND CALCIUM NITRITE IN DRINKING WATER OF

Dieldrin pretreatment does not induce hepatic microsomal and cytosolic epoxide hydrolase activities in rainbow trout (Oncorhyncus mykiss)

Creator:: Rosemond, Marie Victoire M.
Abstract:: Previous studies have shown that rainbow trout exposed to dieldrin via diet for 9 to 12 weeks increased biliary excretion of a subsequent dose of [¹⁴C]dieldrin by 500%. This was not explained by induction of the cytochrome P-450 (CYP) system involved in oxidative metabolism of these compounds. We hypothesized that...
Resource Type:: Masters Thesis
Full Text:: . Effect of pH on cEH activity using TSO as substrate for cytosol ..................21 3.3. Effect of pH

Uptake and retention of zinc-65 from seawater by Euphausia pacifica Hansen

Creator:: Fowler, Scott Wellington
Resource Type:: Masters Thesis
Full Text:: the animal, and concentration of Zn6 in the water. Weight-specific uptake appeared to be linear 0

Uranium biokinetics in gavaged young adult female rats

Creator:: Keizer, Philip John
Abstract:: Blood, liver, kidney, femur, and ovaries were assayed from female Wistar rats following oral administration of uranyl nitrate. Three uranium concentrations were studied for six time periods ranging from 4 hours to 240 hours following gavage. Uranium burdens of tissues were determined by neutron activation and delayed fission neutron counting...
Resource Type:: Masters Thesis
Full Text:: human drinking water. Uranium Biokinetics in Gavaged Young Adult Female Rats by Philip John Keizer

Effects of X- and gamma irradiation on the juvenile pacific oyster, Crassostrea gigas

Creator:: Trenholm, Steve Ray
Abstract:: Two separate studies were conducted during this research project. Oysters were irradiated with 500 and 1000 rads and 5, 10, 20, 50, 75, 100, 150, and 200 krads in the first study in order to determine the effects of ionizing radiation on survival and growth rates. Two periods of high...
Resource Type:: Masters Thesis
Full Text:: (cumulative dose of 71.7 krads) appeared to have no effect on growth of the scallops during the 84 days they

Cardiovascular and respiratory responses of the ghost shrimp, Callianassa californiensis Dana, to the pesticide carbaryl and its hydrolytic product 1-naphthol

Creator:: Estes, Patricia S.
Abstract:: Many environmental factors influence cardiovascular and respiratory activities of crustaceans. The effects of natural stressors (hypoxia, low salinity, high temperature) have been well studied, but the effects of pollutants upon these two organ systems have received less attention. The presence of the pesticide carbaryl (Sevin, Union Carbide, Inc.) and its...
Resource Type:: Masters Thesis
Full Text:: of physiological techniques in monitoring pollution: A consideration of its problems and current

The effects of concentration and particle size of suspended materials on growth and condition of the Pacific oyster (Crassostrea gigas)

Creator:: Wilson, William Joseph
Abstract:: The effects of exposure to suspended silt, kaolin and fuller's earth on growth and condition of Pacific oysters, 16 months of age, were studied. The exposure apparatus maintained a continuous flow of turbid water through chambers containing test oysters. Additional studies measured the filtration rates of oysters exposed to suspended...
Resource Type:: Masters Thesis
Full Text:: maintained a continuous flow of turbid water through chambers containing test oysters. Additional studies

ScholarsArchive@OSU

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

Bioaccumulation profiles of chemical contaminants in fish from the lower Willamette River, Portland Harbor superfund site and human health risk assessment

Passive sampling devices as biological surrogates for evaluating seasonal bioavailability of hydrophobic organic contaminants in surface water

The effects on the performance of broilers consuming calcium, potassium, and sodium nitrates and nitrites from the drinking water

Dieldrin pretreatment does not induce hepatic microsomal and cytosolic epoxide hydrolase activities in rainbow trout (Oncorhyncus mykiss)

Uptake and retention of zinc-65 from seawater by Euphausia pacifica Hansen

Uranium biokinetics in gavaged young adult female rats

Effects of X- and gamma irradiation on the juvenile pacific oyster, Crassostrea gigas

Cardiovascular and respiratory responses of the ghost shrimp, Callianassa californiensis Dana, to the pesticide carbaryl and its hydrolytic product 1-naphthol

The effects of concentration and particle size of suspended materials on growth and condition of the Pacific oyster (Crassostrea gigas)

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