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Filtering by: Committee Member McGuire, William S. Remove constraint Committee Member: McGuire, William S. Degree Field Fisheries Science Remove constraint Degree Field: Fisheries Science

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  • Assemblages of groundfish caught using commercial fishing strategies off the coasts of Oregon and Washington from 1985-1987

    Creator:
    Rogers, Jean Beyer
    Abstract:
    The groundfish trawl fishery operating off the coasts of Oregon and Washington 1985-1987 caught six major assemblages of species which could be treated as units in developing mixed-species management plans. Eighty-one percent of the tows observed on commercial vessels were consistently placed in one of the assemblage designations using three...
    Resource Type:
    Dissertation
    Full Text:
    ACKNOWLEDGEMENTS I am grateful to Dr. Ellen K. Pikitch, my major professor, and to Dr. Susan S. Hanna, Dr

  • Evaluating the data-poor fishery stock assessment method, DB-SRA

    Creator:
    Owashi, Brandon R.
    Abstract:
    Depletion-Based Stock Reduction Analysis (DB-SRA; Dick and MacCall, 2011) is a catch-only fisheries stock assessment model that has been developed to estimate an overfishing limit (OFL) in data-poor situations. DB-SRA projects the biomass trajectories of a stock by means of a catch time series and five parameters: the instantaneous, per...
    Resource Type:
    Masters Thesis
    Full Text:
    (left of), S (same as), or R (right of) the maturity curve………................................... 47

  • Life history and evolutionary adaptation of Pacific salmon and its application in management

    Creator:
    Wevers, Mary Jo
    Abstract:
    An approach to understanding and managing anadromous salmon, steelhead, and sea-run cutthroat trout (Oncorhynchus spp.) based on life history and evolutionary adaptive capacities of species and stocks is presented. Species, stocks, and local populations are viewed as systems that are continuously adapting to changing environmental conditions. They have the potential...
    Resource Type:
    Dissertation
    Full Text:
    . William J. Liss (Fisheries and Wildlife), Gordon E. Matzke (Geography), Ronald 0. Clarke (Religious