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Filtering by: Subject Tides -- Oregon Degree Name Doctor of Philosophy (Ph.D.)

Interactions of wind-driven and tidally-driven circulation in the Oregon coastal ocean

Creator:

Osborne, John J.

Abstract:

Influences of tidal and slower (subtidal) oceanic flows over the continental shelf and slope off Oregon are studied using a high-resolution ocean circulation model and comparative model-data analyses. The model is based on the Regional Ocean Modeling System (ROMS), a fully nonlinear, three-dimensional model (using hydrostatic and Boussinesq approximations). The...

Resource Type:

Dissertation

Full Text:

currents. Our analyses reveal areas of intensified semidiurnal tide on the Oregon slope and the shelf and
Environmental factors and plant-animal interactions on rocky shores along the Oregon coast

Creator:

Brosnan, Deborah M.

Abstract:

Factors affecting the persistence of mussels (Mytilus californianus) and their associated epibiont species were studied along the central Oregon coast. Interactions between mussels and their algal epibionts (Endocladia muricata) varied in sign and strength with environmental conditions. In extreme temperatures mussel—epibiont interactions determined survival of individual mussels, and persistence of...

Resource Type:

Dissertation
Linking marine communities and ecosystems : invertebrates mediate nutrient availability in intertidal communities

Creator:

Bracken, Matthew E.

Abstract:

While community ecologists have traditionally focused on local-scale processes, it has become apparent that a broader perspective, which explores the community-level ramifications of material fluxes within and between ecosystems, is necessary to effectively evaluate bottom-up influences on community structure and dynamics. In this dissertation, I employed ecosystem principles to understand...

Resource Type:

Dissertation

Full Text:

, in high-intertidal poois on the Oregon coast. I demonstrate that because high-zone tide pools are