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Filtering by: Subject Plankton blooms -- Oregon -- Pacific Coast Remove constraint Subject: Plankton blooms -- Oregon -- Pacific Coast Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.)

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  • 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

  • Above and Below : Oregon Coastal Phytoplankton Bloom Dynamics from Sea and Space

    Creator:
    McKibben, S. Morgaine
    Abstract:
    Phytoplankton are a sentinel class of organisms in the marine environment. Through their photosynthetic activity in sunlit waters worldwide, phytoplankton shape the health and productivity of marine ecosystems and impact the global climate. In this work a range of ocean sensing technologies (via ships, surf zone sampling, moorings, gliders, and...
    Resource Type:
    Dissertation
    Full Text:
    Below: Oregon Coastal Phytoplankton Bloom Dynamics from Sea and Space Abstract approved: Angelicque E

  • 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:
    recently upwelled waters, indicative of bloom activity. Reductions in bacterial grazers resulted in