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Radioecology of ⁶⁵Zn in an arm of the Columbia River Estuary

Creator:: Renfro, William Charles
Abstract:: Levels of ⁶⁵Zn in water, sediments, plants, and animals in Alder Slough, a small ecosystem in the Columbia River Estuary, were determined periodically during a one year period. Concentrations of total Zn in organisms were also measured to permit computation of specific activities (μCi⁶⁵Zn/g total Zn). Temporal fluctuations in the...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF William Charles Renfro for the Ph

Iron-55 in Pacific Ocean organisms

Creator:: Jennings, Charles David
Resource Type:: Dissertation
Full Text:: : IRON-55 IN PACIFIC OCEAN ORGANISMS Abstract approved: Charles Osteberg William 0. Forster Large

Size structure and growth rate of Euphausia pacifica off the Oregon coast

Creator:: Smiles, Michael Charles Jr
Abstract:: Euphausia pacifica lives for a period of approximately one year, disappearing from the catches at a size of about 22-24 mm. Spawning, which occurs mainly inshore, extends from June through December but generally is most prominent in the autumn months. Average growth is calculated to be approximately 2.0 mm per...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF MICHAEL CHARLES SMILES, JR. for

Determination and application of ³²p specific activity in Columbia River fish

Creator:: Romberg, Gerald Patrick
Resource Type:: Masters Thesis
Full Text:: : DETERMINATION AND APPLICATION OF 32P SPECIFIC ACTIVITY IN COLUMBIA RIVER FISH Abstract approved: William

Vertical distribution of radioactivity in the Columbia River estuary

Creator:: Hanson, Peter James
Abstract:: In situ salinity, turbidity and temperature were measured at discrete depths and water samples for radioanalysis were simultaneously collected in the Columbia River Estuary using a specially designed instrument package. Particulate radioactivity was concentrated by filtration and the dissolved radioactivity by evaporation or ferric oxide bulk precipitation. Radioanalysis was by...
Resource Type:: Masters Thesis
Full Text:: of Radioactivity in the Columbia River Es tua r Abstract approved: Charles L. Osterberg William 0

Extraction of zinc from sea water

Creator:: Buffo, Lynn Karen
Abstract:: A liquid-extraction procedure for the concentration of zinc in sea water was developed. The metal ion in sea water was chelated with sodium diethyldithiocarbamate and extracted into an organic solvent, methylisobutylketone, at the normal pH of sea water. A back-extraction into HCl followed, providing a concentration of 30X for the...
Resource Type:: Masters Thesis
Full Text:: OF ZINC FROM SEA WATER Abstract approved: Dr. Charles L.Osferberg Dr. William 0. Forster A liquid

Radioactivity of sediments in the Columbia River estuary

Creator:: Jennings, Charles David
Resource Type:: Masters Thesis
Full Text:: design of the line- matching pre-amplifier and to Messrs. William Bales and Charles Elliot for many

Plankton and nutrient ecology of the Columbia River estuary

Creator:: Haertel, Lois Steben
Abstract:: Monthly samples of nutrients, phytoplankton and zooplankton were taken in the Columbia River estuary over a period of 16 months in order to determine distribution with season and salinity, and interrelationships between plankton and nutrients. Nitrate and phosphate levels in the river water entering the estuary are high in the...
Resource Type:: Dissertation
Full Text:: : PLANKTON AND NUTRIENT ECOLOGY OF THE COLUMBIA RIVER ESTUARY Abstract approved: Charles Osterberg Monthly

Chromium-51 in the Columbia River and adjacent Pacific Ocean

Creator:: Cutshall, N. H.
Abstract:: Radioactive chromium-51, a waste byproduct from operation of nuclear reactors at Hanford, Washington, has been followed down the Columbia River and into the Pacific Ocean. Chemical factors influencing the partitioning of ⁵¹Cr between solution and sediment have been considered. Chromium-5l, in a hexavalent oxyanion when introduced into the Columbia River,...
Resource Type:: Dissertation
Full Text:: Privacy Redacted for Privacy A CKNOW LEDGM ENTS I wish to thank Professor Charles Osterberg for

Artificial radionuclides in Pacific salmon

Creator:: Kujala, Norman Frederick
Resource Type:: Masters Thesis
Full Text:: privacy ACKNOWLEDGEMENTS I would like to thank Dr. Charles Osterberg, my advisor, who stimulated me

ScholarsArchive@OSU

Radioecology of ⁶⁵Zn in an arm of the Columbia River Estuary

Iron-55 in Pacific Ocean organisms

Size structure and growth rate of Euphausia pacifica off the Oregon coast

Determination and application of ³²p specific activity in Columbia River fish

Vertical distribution of radioactivity in the Columbia River estuary

Extraction of zinc from sea water

Radioactivity of sediments in the Columbia River estuary

Plankton and nutrient ecology of the Columbia River estuary

Chromium-51 in the Columbia River and adjacent Pacific Ocean

Artificial radionuclides in Pacific salmon

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