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  • Acteurs sociaux et rationalité économique dans l'environnement littoral en Colombie

    Creator:
    Melo-Pinzon, Gladys
    Abstract:
    Les graves atteintes aux équilibres des écosystèmes côtiers et littoraux sont devenues une préoccupation partagée par les chercheurs et les développeurs. La détérioration du bien-être des populations gui en sont soit la cause, soit la conséquence, impose la révision du discours économique prédominant dans les programmes de développement. L'impératif de...
    Resource Type:
    Research Paper

  • Fishery Responses to Changes in Oceanic Climates: The Case of the Oregon Ocean Shrimp Fishery

    Creator:
    Gallagher, Charmaine Marie, Sylvia, Gil, and Hannah, Robert W.
    Abstract:
    Oregon ocean shrimp annual harvest relies on the successful recruitment and growth of age one shrimp. Changes in oceanic conditions appear to have major impacts on recruitment, spatial abundance and growth rates. Successful recruitment has been identified with the timing and strength of the spring transition generating oceanic conditions favorable...
    Resource Type:
    Research Paper
    Full Text:
    variability in Pacific environmental indicators. In turn, this environmental variability affects shrimp value

  • Empirical characterisation of a commercial fishing cycle using structural time series methods

    Creator:
    McDonald, David
    Abstract:
    Structural time series methods are applied to modeling endogenous fishing effort in the German North Sea shrimp fishery. The effects on fishing effort of shrimp price, catch per unit effort and environmental variation are examined. Preliminary results suggest that fishing firms do not respond much to price changes but they...
    Resource Type:
    Research Paper
    Full Text:
    effects on fishing effort of shrimp price, catch per unit effort and environmental variation are examined

  • Developing a Strategy for Managing the Environmental Effects of Fishing

    Creator:
    McMurran, Jennie and Peacey, Jonathan
    Abstract:
    There is increasing awareness of and concern about the actual and potential adverse effects of fishing on the aquatic environment. New Zealand, like many other countries, has developed a range of initiatives to address specific issues related to the effects of fishing, including establishing marine reserves, fishing method restrictions, observer...
    Resource Type:
    Research Paper
    Full Text:
    Environmental Effects of Fishing Jennie McMurran and Jonathan Peacey, Ministry of Fisheries, Wellington, New

  • Toward a New Paradigm of the Fisheries Management

    Creator:
    Kawasaki, Tsuyoshi
    Abstract:
    Fisheries management has been carried out on the assumption that a fish population is in equilibrium with the fishing effort under the average environmental conditions and hence there must be a maximum sustainable yield (MSY). However, since the simultaneous rise and fall of the interdecadal and global scale of sardine...
    Resource Type:
    Research Paper
    Full Text:
    effort under the average environmental conditions and hence there must be a maximum sustainable yield