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ScholarsArchive at Oregon State University
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One of the biggest advantages of remote sensing is that large areas of
the earth's surface can be surveyed in short periods of time, providing nearsynoptic
"pictures." Repeated surveys of one area, like time-lapse photography,
can be interpreted...
2009-11-19T14:30:26Z (iso8601)
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Gamma-emitting radionuclides were found in benthic fishes from
depths of 50-280O m off the Oregon coast from 1964-1971. 65Zn, 60Co,
54Mn, 144Ce, 137Cs and 40K were present. Zinc-65, originating mainly
from the nuclear reactors on the Columbia...
1972 (iso8601)
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A total of 19 species of hyperiid amphipods was collected from 1963 to 1967 off Oregon.
Parathemisto pacifica, Paraphronima gracilis, Streetsia challengeri, Tryphana malmi, Hyperia
medusarum, Hyperoche medusarum, and Primno macropa were common....
1975 (iso8601)
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This paper reviews some of the distributional features of vertically migrating micronekton
off Oregon; describes a new, conducting-cable, midwater-trawl system using an eight-net,
opening-closing cod-end unit; and gives some preliminary results on...
1970 (iso8601)
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Submillimeter depth distributions of total dissolved inorganic carbon (DIC) were derived from pH and PCO2 profiles measured with microelectrodes in an organic-rich, laboratory-maintained sediment. The DTC profiles were used to calculate diffusive...
1998 (iso8601)
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We have developed and successfully collected data with a unique, bottom-transecting vehicle (ROVER) that permits the first long time-series measurements of sediment community oxygen consumption (SCOC). This instrument has the, following...
1997 (iso8601)
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We made stable and rapid-responding pH and pCO2 microelectrodes. The pH microelectrode has a ~100-μm-diameter half-sphere bulb tip of pH glass, and the pCO2 sensor has a 200–300-μm-diameter silicone-membrane covered tip. Because the pH...
1993 (iso8601)
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A temporal record of oxygen and NO3- concentrations in the bottom water of the Santa Barbara Basin indicates that outside waters spill over into the basin seasonally. It is proposed that an annual bottom-water cycle leads ultimately to varve...
1990 (iso8601)
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Aerobic oxidation is important in the cycling of methane in the sediments of Lake Washington. About half of the methane flux from depth is oxidized to CO, in the upper 0.7 cm of the sediments and the remainder escapes into the water column. In...
1988 (iso8601)
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Rates of sediment community oxygen consumption determined in situ are compared to fluxes predicted from oxygen microelectrode gradients measured in cores from ~3,750-m water depth in the eastern North Pacific. Oxygen concentrations decrease...
1986 (iso8601)
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Infrared radiometers, photographs, and a multispectral
scanner were used in a remote sensing study of the ocean off
Oregon during the summer of 1969. Upwelling appeared on
infrared temperature maps as a zone of cold water along the
coast and...
1969-10 (iso8601)
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A new midwater trawl for sampling deepsea nekton from discrete
depths is described. Its mouth area is about 50 m2. The trawl body is
lined with small mesh netting and terminates in a 5-net opening-closing
codend device. Problems of delayed...
1978 (iso8601)
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Since 2006 Oregon has promoted the development of wave energy off its coast. While the state may be well suited for the technology because of an abundant wave resource and supporting coastal infrastructure there remain potential barriers to...
2009-11-30T14:35:22Z (iso8601)
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The long-term evolution of Gaussian eddies is studied in an equivalent barotropic model using both linear and nonlinear quasi-geostrophic theory in an attempt to understand westward propagating satellite altimetry tracked mesoscale eddies. By...
2009-12-17T00:22:27Z (iso8601)
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In this study we present
new information on seasonal variation
in absolute growth rate in length of
coho salmon (Oncorhynchus kisutch) in
the ocean off Oregon and Washington,
and relate these changes in growth
rate to concurrent changes in the...
2005 (iso8601)
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Research on the ecology of salmon in the northeast Pacific Ocean
began in the early 20th century. Charles Gilbert and Willis Rich demonstrated
the basis for the stock concept and were instrumental in changing common misconceptions
of the times....
2007 (iso8601)
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Sixteen species of oceanic shrimps, seven Penaeidea and nine Caridea, appeared in 244
collections made within the upper 1500 m at one station in the northeast Pacific off Oregon.
Most of the species were primarily mesopelagic in distribution.
The...
1966 (iso8601)
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The 1982-83 El Nino event in the northeastern Pacific has been
associated with significant changes In sea temperatures, vertical
thermal structure, coastal currents and upwelling (this volume).
Such physical changes may affect the species...
1985 (iso8601)
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During July 1970, albacore boats trolling surface jigs (jig boats) had record catches
in an area off the mouth of the Columbia River. The jig fishery declined suddenly in
late July and was poor throughout the remainder of the summer. No obvious...
1973 (iso8601)
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During four cruises in July and September of 2008 and 2009, the shipboard X-band radar was tuned to detect the modulated bands of surface roughness caused by converging and diverging currents associated with high-frequency nonlinear internal wave...
2009-12-23T23:42:57Z (iso8601)
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A stable-isotope stratigraphy at Site 846 (tropical Pacific, 3°06'S, 90°49'W, 3307 m water depth), based on the benthic
foraminifers Cibicides wuellerstorfi and Uvigerina peregrina, yields a high-resolution record of deep-sea δ¹⁸O and δ¹³C over...
1995 (iso8601)
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