Index Catalog // ScholarsArchive@OSU

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

Vertical distribution patterns of plankton and their relationship to physical factors over the continental shelf off Oregon

Creator:: Sutor, Malinda
Abstract:: Discrete layers of phytoplankton and zooplankton were observed over the Oregon continental shelf in summer and fall of 2001 and summer 2002 using optical and acoustical technologies and a pump sampling system. Layers of phytoplankton had steep vertical gradients which were associated with gradients in density and local peaks in...
Resource Type:: Dissertation
Full Text:: Patterns of Plankton and Their Relationship to Physical Factors over the Oregon Continental Shelf Abstract

Primary productivity and community structure of an estuarine impoundment

Creator:: Lyford, John Higgins
Abstract:: An impounded estuary was employed to study primary productivity, community respiration, and community structure as they related to seasonal and temporal succession, salinity, and water temperature. Plankton metabolism was studied by means of the light-and dark-bottle technique. Benthic community metabolism was determined by using the "diurnal oxygen curve" method. Four...
Resource Type:: Dissertation
Full Text:: structure as they related to seasonal and temporal succession, salinity, and water temperature. Plankton

Coastal upwelling and the ecology of lower trophic levels

Creator:: Laurs, R. Michael
Resource Type:: Dissertation
Full Text:: to express my most grateful thanks to my wife, Suellen, for assistance in sorting plankton samples

The effect of protistan bacterivory on bacterioplankton community structure

Creator:: Suzuki, Marcelino
Resource Type:: Dissertation
Full Text:: cultivated from seawater plankton samples. However, two studies employing molecular techniques support

Radioactivity in oceanic organisms

Creator:: Osterberg, Charles
Resource Type:: Dissertation
Full Text:: plankton so that the spectra of euphauslids, salps, and sergestids at times showed strong peaks due to

Planktic foraminifers of the California Current at 42°N : last glacial maximum and present

Creator:: Ortiz, Joseph D.
Abstract:: MOCNESS plankton tows, sediment traps and sedimentary material are used to determine the linkage between bio-physical forcing and foraminiferal response over a range of time scales from the event scale to the glacial interglacial cycle. The annually averaged planktic foraminiferal fauna of the modem California Current is a diverse community...
Resource Type:: Dissertation

Turbulence and biophysical fluxes in the near surface ocean

Creator:: Hoecker-Martínez, Martín
Abstract:: Vertical transports of plankton, momentum, heat, and turbulence are modeled. A novel integration of high resolution turbulence and biophysical modeling is used to show the influence of a Kelvin-Helmholtz instability on the vertical migration of simple gyrotactic organisms. A viscous limit on mixing driven by shear turbulence is proposed. Large...
Resource Type:: Dissertation
Full Text:: plankton, momentum, heat, and turbulence are modeled. A novel integration of high resolution turbulence

Zooplankton of the Galapagos Islands

Creator:: Figueroa, Diego
Abstract:: The marine climate of the Galapagos is spatially and seasonally heterogeneous. A taxonomically comprehensive study of Galapagos zooplankton has never been done. This study is an initial effort to establish the distribution and community structure of zooplankton in the Archipelago. I collected zooplankton samples by vertical tows over the Galapagos...
Resource Type:: Dissertation
Full Text:: (Fernandez-Alamo and Farber-Lorda, 2006). Plankton collected by net tows during these expeditions led to

ScholarsArchive@OSU

Plankton and nutrient ecology of the Columbia River estuary

Vertical distribution patterns of plankton and their relationship to physical factors over the continental shelf off Oregon

Primary productivity and community structure of an estuarine impoundment

Coastal upwelling and the ecology of lower trophic levels

The effect of protistan bacterivory on bacterioplankton community structure

Radioactivity in oceanic organisms

Planktic foraminifers of the California Current at 42°N : last glacial maximum and present

Turbulence and biophysical fluxes in the near surface ocean

Zooplankton of the Galapagos Islands

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