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Filtering by: Creator Cowles, Timothy J. Remove constraint Creator: Cowles, Timothy J. Advisor Abbott, Mark R. Remove constraint Advisor: Abbott, Mark R. Degree Field Oceanography Remove constraint Degree Field: Oceanography

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  • Seconds to hour scale photosynthetic responses in marine microalgae

    Creator:
    Laney, Samuel R.
    Abstract:
    Our view of phytoplankton has historically revolved around their inability to control their location in space. The term phytoplankton itself underscores this particular difference between phytoplankton and their sessile terrestrial counterparts. Yet there are other differences between land plants and the phytoplankton that are perhaps equally important, beyond this sessile-planktonic...
    Resource Type:
    Dissertation
    Full Text:
    : Pat Wheeler, Ron Zaneveld, and Tim Cowles from COAS, Tom Plant from Electrical Engineering and

  • Physical and chemical factors controlling the distribution of the major phytoplankton classes at the Antarctic Polar Front, 170 °W

    Creator:
    Mengelt, Claudia
    Abstract:
    This study was part of the Antarctic Environment and Southern Ocean Study (AESOPS) program, whose main goal was to investigate the role of the biota in the carbon flux from the atmosphere to the interior of the ocean. We quantified the abundance of the major phytoplankton classes and examined the...
    Resource Type:
    Masters Thesis
    Full Text:
    essential to this work: M. Sparrow, F. Prahl, C. Vendetta, L. Eisner, S. Laney and J. Barth

  • Physical-biological interactions in the Southern Ocean

    Creator:
    Moore, Jefferson Keith
    Abstract:
    Physical-biological interactions in the Southern Ocean were investigated using remote sensing data from several different satellite sensors. Satellite sea surface temperature data were used to study the dynamics of the Antarctic Polar Front (PF). Satellite ocean color data were used to estimate surface chlorophyll concentrations and their relation to various...
    Resource Type:
    Dissertation
    Full Text:
    the research and writing of Chapter 7. Walker Smith, Timothy Cowles, Kenneth Coale, Wilford Gardner

  • Studies on the spatial variability of phytoplankton physiology and biomass in the Oregon upwelling system

    Creator:
    Sanders, Rachel B.
    Abstract:
    The Oregon upwelling system is a region of high biomass and primary productivity as well as strong mesoscale variability. In order to examine the interaction of physical forcing and ecosystem dynamics, four 3-week sampling cruises were conducted in the Oregon upwelling system as part of the Northeast Pacific Global Ocean...
    Resource Type:
    Masters Thesis
    Full Text:
    cruises, Jack Barth and Tim Cowles. Many thanks to Chris Wingard and Russ Desiderio for management of the

  • Primary production dynamics in the North Pacific subtropical gyre

    Creator:
    Corno, Guido
    Abstract:
    The North Pacific subtropical gyre (NPSG), once considered to be a biological desert due to low primary production (PP) and its associated variability, has been found more productive and variable than previously thought. The environmental conditions controlling this relatively high PP variability are yet to be elucidated, despite important implications...
    Resource Type:
    Dissertation
    Full Text:
    , writing and data interpretation of Chapter 2, 3 and 4. Dr. Matthew J. Church and Dr. Roger Lukas

  • Untangling the complexity of nearshore ecosystems : examining issues of scaling and variability in benthic communities

    Creator:
    Schoch, G. Carl
    Abstract:
    The objective of this research was to improve our understanding of how changes in the environment affect ecological processes. Change detection is often confounded by the large variation found in ecological data due to the difficulty of finding replicates in nature. Intertidal communities were chosen for studies of biophysical interactions...
    Resource Type:
    Dissertation
    Full Text:
    Alice Murphy, and I thank Mark Abbott, Tim Cowles, and Pat Wheeler for funding and the use of equipment