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Filtering by: Subject Plankton blooms -- Oregon -- Pacific Coast Remove constraint Subject: Plankton blooms -- Oregon -- Pacific Coast Decade 2000-2009 Remove constraint Decade: 2000-2009

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  • 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:
    seen by Hill and Wheeler (2002) off the Oregon coast, except in the first incubation where initial

  • 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

  • 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