Index Catalog // ScholarsArchive@OSU

Variability in mesoscale circulation and its effects on zooplankton distribution in the Northern California Current

Creator:: Keister, Julie Eileen
Abstract:: In eastern boundary current upwelling ecosystems, mesoscale circulation features such as eddies and upwelling filaments play a prominent role in the transfer of water and the associated plankton from the productive nearshore to the oligotrophic deep sea. The relationship between mesoscale circulation, zooplankton distributions, and the across-shelf transport of coastal...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Julie Eileen Keister for the degree of Doctor of Philosophy in

Phosphorus control of nitrogen fixation

Creator:: Watkins-Brandt, Katie S.
Abstract:: Under conditions of fixed N-limitation, as with most oligotrophic systems, the process of biological N₂ fixation (diazotrophy) is favored, provided the necessary trace elements and vitamins are sufficient. Despite the well understood contributions of N₂ fixation in oligotrophic regions, the nutritional and ecological controls of marine diazotrophs have not been...
Resource Type:: Masters Thesis
Full Text:: for serving as a committee member and an outside view and Dr. Julie Pett-Ridge for serving as my

Life history and ecology of Calanus marshallae Frost in the Oregon upwelling zone

Creator:: Peterson, William T.
Resource Type:: Dissertation
Full Text:: Approved; Charles B. Miller The life history and ecology of the neritic copepod Calanus marshallae was

Population dynamics and cohort persistence of Acartia californiensis (Copepoda:Calanoida) in Yaquina Bay, Oregon

Creator:: Johnson, John Kenneth
Resource Type:: Dissertation
Full Text:: persistence of cohorts were tested. These hypotheses included: a) periodic food limitation; b) tidal

Comparative study of the population dynamics, secondary productivity, and reproductive ecology of the euphausiids Euphausia pacifica and Thysanoessa spinifera in the Oregon upwelling region

Creator:: Gutierrez, Jaime Gomez
Abstract:: I compare the seasonal abundance variation, population dynamics, fecundity, egg hatching mechanism and success, and apostome ciliate parasites of the euphausiids Euphausia pac?fica and Thysanoessa spinfera from the Oregon coast, USA. Community structure and nearshore distributions were examined from bi-weekly oceanographic surveys (1970-1972). This region has a strong cross-shelf change...
Resource Type:: Dissertation
Full Text:: people who have helping me along the way. I want to thank my major advisors, Charles B. Miller and

Dynamics of organic matter production and degradation during coastal diatom blooms

Creator:: Wetz, Michael S.
Abstract:: Experiments were designed to answer key questions about diatom-derived organic matter cycling (i.e., production and degradation) in coastal systems. Dissolved organic matter (DOM) production was examined in axenic batch cultures of five diatom species. Dissolved organic carbon (DOC) release rates varied between species, but were significantly higher for all species...
Resource Type:: Dissertation
Full Text:: White. 7) Julie Arrington, former resident of the Dungeon annex of the Wheeler lab, who taught me

Comparing the hydrography and copepod community structure of the continental shelf ecosystems of Washington and Oregon, USA from 1998 to 2009 : can a single transect serve as an index of ocean conditions over a broader area?

Creator:: Lamb, Jesse F.
Abstract:: Bi-weekly sampling of zooplankton and environmental parameters was conducted along a cross-shelf transect off the coast of Newport, OR, USA (44.65°N) from 1996 to present. Results have demonstrated the feasibility of using copepod community structure as an early indicator of ecosystem response to seasonal and large scale environmental changes in...
Resource Type:: Masters Thesis
Full Text:: BPA Sampling Stations ....................................................... 16 2a&b Mean and

Life history and feeding ecology of the dominant Arctic lysianassid amphipod Pseudalibrotus ( = Onisimus) litoralis from the inner continental shelf of the SW Beaufort Sea

Creator:: Boudrias, Michel Andre
Resource Type:: Masters Thesis
Full Text:: craziness of its own was the COrvallis Wino Society, better known as COWS. All of you, Pat Hayes, Julie

Production and partitioning of organic matter during simulated phytoplankton blooms

Creator:: Wetz, Michael S.
Abstract:: Few studies have examined the partitioning of organic matter in upwelling systems, despite the fact that these systems play a key role in carbon and nitrogen budgets in the ocean. We examined the production and partitioning of phytoplankton-derived organic matter in deck incubations off Oregon during the upwelling season. During...
Resource Type:: Masters Thesis
Full Text:: Sherr also helped improve this thesis. A big thanks to my co-workers, Jen Harman, Julie Arrington

On coastal trapped waves at low latitudes in a stratified ocean

Creator:: Romea, Richard Dennis
Abstract:: The response on the continental shelf of a baroclinic ocean to driving by an alongshore coastal wind stress and by barotropic and baroclinic wind forced interior motions is studied as a function of latitude. The relative excitation of continental shelf waves and internal Kelvin waves is studied. The response of...
Resource Type:: Dissertation
Full Text:: Forcing 33 a. Forced Coastally Trapped Waves 34 b. Very Low Frequency Behavior 38 6. Summary 39 Figure

ScholarsArchive@OSU

Variability in mesoscale circulation and its effects on zooplankton distribution in the Northern California Current

Phosphorus control of nitrogen fixation

Life history and ecology of Calanus marshallae Frost in the Oregon upwelling zone

Population dynamics and cohort persistence of Acartia californiensis (Copepoda:Calanoida) in Yaquina Bay, Oregon

Comparative study of the population dynamics, secondary productivity, and reproductive ecology of the euphausiids Euphausia pacifica and Thysanoessa spinifera in the Oregon upwelling region

Dynamics of organic matter production and degradation during coastal diatom blooms

Comparing the hydrography and copepod community structure of the continental shelf ecosystems of Washington and Oregon, USA from 1998 to 2009 : can a single transect serve as an index of ocean conditions over a broader area?

Life history and feeding ecology of the dominant Arctic lysianassid amphipod Pseudalibrotus ( = Onisimus) litoralis from the inner continental shelf of the SW Beaufort Sea

Production and partitioning of organic matter during simulated phytoplankton blooms

On coastal trapped waves at low latitudes in a stratified ocean

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