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ScholarsArchive at Oregon State University
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Diadora aspera is an intertidal keyhole limpet found in the mid-tidal
zone. Its activity pattern was estimated under laboratory
conditions using time-lapse-photography and manometric determinations
of oxygen consumption.
Statistical and computer...
1975-03-05 (iso8601)
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The warm pool region of the western tropical Pacific is of particular interest to
atmospheric dynamics because it represents a significant source of energy to the
atmosphere. A better understanding of heat transfer driven by mesoscale and...
2002-01-25 (iso8601)
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The refractive index of particulate matter suspended in seawater
is nonuniform and potentially is an indicator of composition and
origin. A method is described for determining the refractive index
distribution. The method requires the measurement...
1974-08-09 (iso8601)
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Carbon and energy fluxes were measured with the eddy covariance technique
above two semi-arid ecosystems, ponderosa pine and juniper/sagebrush, located in
central Oregon. The two ecosystems have low LAI and a very open canopy structure.
The energy...
1999-10-20 (iso8601)
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Cores taken from the ridge areas of the Gorda-Juan de Fuca
plate have a sedimentation rate that is appropriate for the study of
late Quaternary stratigraphy. An analysis of the clay and silt
mineralogy of the cores using X-ray diffraction methods...
1973-09-05 (iso8601)
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The reproductive biology of Kidderia (Kidderia) subquadratum
(Pelseneer, 1903) was studied from collections which were made at
Palmer Station, Antarctica during 1970 and 1971. Kidderia subquadratum
is a small lamellibranch (the largest observed...
1974-07-15 (iso8601)
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A variety of general circulation model experiments are performed to
investigate the influence of seasonality and topography on the strength of baroclinic
eddies in the Martian atmosphere. Three different models are used: a full physics
model, a...
2000-11-14 (iso8601)
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Detailed surveys of several segments of the Peru Trench show
that the region between 6° to 10⁰ S is an area of recent deformation.
Seismic reflection records across the axis of the trench show faulting,
uplift, and tilting of the sedimentary fill...
1973-12-28 (iso8601)
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The Lamprey Eel Decline project conducted by the Confederated Tribes of
Siletz Indians (CTSI) combined traditional ecological knowledge, scientific research
and geographic information science. CTSI wanted to learn why the Pacific lamprey
(Lampetra...
2000-06-02 (iso8601)
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Declining harvest levels, static agency research budgets, and increasing tension
among scientists, managers, and industry members are the legacy of the present research
and management institutions in the West Coast groundfish fishery. Cooperative...
1999-04-13 (iso8601)
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The forest products industry often uses intermediate-support cable logging
systems to transport logs from the harvest site to a staging area. A method is presented to assist in the analysis and design of these cable systems. The method determines...
1997-04-21 (iso8601)
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This study of the immediate, localized effects of a small dredging
operation on the benthic invertebrate community in the shipping
channel of Coos Bay, Oregon, was designed: 1) to measure the extent
of the physical removal of benthic macro- and...
1973-09-12 (iso8601)
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A new technique for determining the amount of opal in deep-sea
sediments of any age is described. Using a normative calculation, a
portion of the analytical silica concentration of sediments is subtracted
as non-biogenic in proportion to the...
1975-09-18 (iso8601)
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Improvements have been made to the spatial coherence method for automatically
determining cloud-free ocean radiances in satellite imagery by incorporating the spectral
signatures of reflecting surfaces. The spatial coherence method relies on the...
1999-12-01 (iso8601)
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In the past, sharks, skates and ray species have mainly occurred in incidental
fisheries. Now they are increasingly being directly targeted due to the depleted status
of traditionally targeted species. The life history characteristics of many...
2005-09-06 (iso8601)
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This study examines the relationship between fishing activities
of Pacific Northwest albacore fishermen and the availability of albacore.
Tactical responses of troll-boat fishermen were compared to
changes in daily apparent albacore abundance....
1974-04-12 (iso8601)
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An experimental investigation of the thermohaline, diffusive
interface between convecting layers, with heat fluxes more similar to
natural fluxes than in previous studies, shows that the formula suggested
by Huppert (1971) for the dependence of...
1974-04-23 (iso8601)
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The behavior of the shore crab Hemigrapsus oregonensis was assessed
with and without exposure to polychlorinated biphenyls (Aroclor 1260).
After describing the crab's behavioral repertoire, activity budgets were
developed from observations of the...
1977-02-25 (iso8601)
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Micropaleontological data have been analyzed through mathematical
and statistical procedures, in order to: (1) establish the distribution
pattern of radiolarian assemblages in the surface sediments,
(2) establish the relationship of these...
1975-05-28 (iso8601)
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Dramatic declines in many species of demersal fishes off the West Coast have
resulted in the designation of nine commercially important species as being
overfished. While the causes of those declines are not clearly understood, the
fact remains...
2003-01-08 (iso8601)
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The objective of this thesis is to show that by separating the two major
anthropogenic changes caused in riverine input to the north shore of the Black Sea,
it is possible to describe distinct linkages between ongoing ecological changes in the...
1995-04-05 (iso8601)
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A simplified autoradiographic method for estimating species-specific
phytoplankton production rates in mixed natural communities
was evaluated in the laboratory and employed in the field. Laboratory
experiments were designed to test the...
1976-09-21 (iso8601)
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In order to determine whether the sediments found on the landward
wall of the Peru Trench are accreted Nazca Plate sediments,
the clay mineralogy and organic carbon contents of 52 surface
samples were submitted to factor analysis. Q-mode factor...
1973-12-28 (iso8601)
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Major (Fe, Mn, Al) and minor (Cr, Mo, Pb, Zn, Cd) element
analyses of metalliferous sediments in cores from the East Pacific
Rise and Bauer Deep indicate that the Bauer Deep sediments are
similar in chemistry and origin to metalliferous sediments...
1973-10-02 (iso8601)
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