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Some Environmental Consequences of Vertical Migration in Marine Zooplankton

Creator:: Miller, Charles B.
Abstract:: The spatial distribution of plankton is highly aggregated, so one might expect that a vertically migrating animal enters a biotic environment that is markedly different each evening and that the changes in environment between daylight periods spent at depth are equally great. To measure the extent of these changes, as...
Resource Type:: Article

A Numerical Study of the Influence of Advective Accelerations in an Idealized, Low-Latitude, Planetary Boundary Layer

Creator:: Mahrt, Larry J.
Abstract:: Steady, longitudinally invariant, barotropic, boundary layer flow is numerically studied at low latitudes where advective accelerations may he large and the Coriolis parameter is small. Flow is generated by specifying the pressure gradient field independent of the flow. It is found that as the flow approaches the equator, advective terms...
Resource Type:: Article

Parasites as indicators of English sole (Parophrys vetulus) nursery grounds

Creator:: Olson, Robert E. and Pratt, Ivan
Abstract:: Juvenile English sole, Parophrys vetulus utilize Yaquina Bay, Oregon, as a nursery during at least a portion of their first year of life, but the possibility of the existence of additional nursery grounds offshore has not previously been examined. During 1971, young-of the-year first appeared in Yaquina Bay in February,...
Resource Type:: Article
Full Text:: American Fisheries Society, 102:2, 405-411 To link to this article: http://dx.doi.org/10.1577/1548-8659

A Relationship of the Reynolds Stress to Local Shear and Heat Fluxes in the Planetary Boundary Layer

Creator:: Mahrt, Larry J.
Abstract:: The steady Reynolds stress and turbulent energy equations for steady, horizontally homogeneous mean flow are used to relate the Reynolds stress u′w′ to the mean wind shear and heat fluxes in the planetary boundary layer. The resulting Reynolds stress demonstrates a 3/2 power dependence on the stress Richardson number and...
Resource Type:: Article

Time-Dependent, Integrated Planetary Boundary Layer Flow

Creator:: Mahrt, L. J.
Abstract:: The response of vertically averaged boundary layer flow to specified time-dependent pressure gradients is examined. The adjustment rate of the boundary layer flow to the pressure gradient field is found to be proportional to the strength of the coupling between the flow and boundary stresses. The angle between the steady...
Resource Type:: Article

Amino acid uptake by marine phytoplankters

Creator:: Wheeler, Patricia A., North, Barbara B., and Stephens, Grover C.
Abstract:: Axenic cultures of 25 species of unicellular marine algae were tested for their ability to utilize nine common amino acids, supplied at high concentrations in batch culture, as a nitrogen source; most species were able to use several amino acids, although growth was often slower than on nitrate nitrogen. The...
Resource Type:: Article

Failure of interbreeding between Atlantic and Pacific populations of the marine calanoid copepod Acartia clausi Giesbrecht

Creator:: Carrillo B.-G., Enrique, Miller, Charles B., and Wiebe, Peter H.
Abstract:: An attempt has been made to interbreed populations of Acartia clausi from Woods Hole, Massachusetts, and Yaquina Bay, Oregon. Individuals from these populations are morphologically similar, but differ somewhat in size. Cultures from both sources produced many successive generations in the laboratory, but interbreeding with production of viable offspring did...
Resource Type:: Article

A Subsurface Ribbon of Cool Water over the Continental Shelf off Oregon

Creator:: Huyer, Adriana and Smith, Robert L.
Abstract:: Observations of the hydrographic regime over the continental shelf off Oregon from the R/V Yaquina during the summer of 1972 showed the presence of an alongshore, subsurface ribbon of relatively cool water. Its properties and its evolution during the 1972 season are described. Examination of earlier observations showed that evidence...
Resource Type:: Article

An Analysis of 20 Years of Meteorological and Oceanographic Data from Ocean Station N

Creator:: Dorman, Clive E., Paulson, C. A., and Quinn, W. H.
Abstract:: Meteorological and oceanographic data for Ocean Station Vessel N (30N, 14OW) are analyzed over 20 years (1951–70) and 7 years (1964–70), respectively. A rainfall estimate is constructed for the 20-year period. The yearly average rainfall is 23 cm, far less than existing estimates. Daily and seasonal variations are presented. Heat...
Resource Type:: Article

Equatorial Front in the Eastern Pacific Ocean

Creator:: Pak, Hasong and Zaneveld, J. Ronald V.
Abstract:: The equatorial front in the eastern Pacific Ocean observed during 14 October–7 December, 1971, from R/V Yaquina of Oregon State University is discussed. The front is clearly defined at the sea surface by a large horizontal gradient of temperature, salinity, σt and nitrate. Equatorial upwelling, which is believed to be...
Resource Type:: Article

ScholarsArchive@OSU

Some Environmental Consequences of Vertical Migration in Marine Zooplankton

A Numerical Study of the Influence of Advective Accelerations in an Idealized, Low-Latitude, Planetary Boundary Layer

Parasites as indicators of English sole (Parophrys vetulus) nursery grounds

A Relationship of the Reynolds Stress to Local Shear and Heat Fluxes in the Planetary Boundary Layer

Time-Dependent, Integrated Planetary Boundary Layer Flow

Amino acid uptake by marine phytoplankters

Failure of interbreeding between Atlantic and Pacific populations of the marine calanoid copepod Acartia clausi Giesbrecht

A Subsurface Ribbon of Cool Water over the Continental Shelf off Oregon

An Analysis of 20 Years of Meteorological and Oceanographic Data from Ocean Station N

Equatorial Front in the Eastern Pacific Ocean

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