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Modelling the fishing costs of French commercial vessels in the Bay of Biscay

Author

Listed:
  • Fabienne Daurès

    () (AMURE - Aménagement des Usages des Ressources et des Espaces marins et littoraux - Centre de droit et d'économie de la mer - CNRS - Centre National de la Recherche Scientifique - UBO - Université de Brest - IFREMER - Institut Français de Recherche pour l'Exploitation de la Mer - IUEM - Institut Universitaire Européen de la Mer - CNRS - Centre National de la Recherche Scientifique - IRD - Institut de Recherche pour le Développement - UBO - Université de Brest)

  • Verena M. Trenkel

    () (dpt, EMH - IFREMER - IFREMER - Institut Français de Recherche pour l'Exploitation de la Mer)

  • Olivier Guyader

    () (AMURE - Aménagement des Usages des Ressources et des Espaces marins et littoraux - Centre de droit et d'économie de la mer - CNRS - Centre National de la Recherche Scientifique - UBO - Université de Brest - IFREMER - Institut Français de Recherche pour l'Exploitation de la Mer - IUEM - Institut Universitaire Européen de la Mer - CNRS - Centre National de la Recherche Scientifique - IRD - Institut de Recherche pour le Développement - UBO - Université de Brest)

Abstract

Ten years after the start of the European Data Collection Framework the availability of cost indicators for assessing the economic status of fisheries or bio-economic modelling is still deficient. Moreover, economic time series are difficult to maintain due to fishermen weariness and sample coverage is often insufficient. To overcome these problems, the paper builds predictive models per operational cost category (fuel, landing, other variable, fixed, salary and total) for the French Bay of Biscay fleet. The cost models had good fit and stressed the key role of gear and vessel size (length mostly) for explaining fishing costs. They suggested that only a small list of variables was needed to predict costs (days-at-sea, total revenue, vessel age, length and power, district and fishing zone). These variables are easy to obtain for all vessels. In addition, some fitted cost models (total, landing and fixed costs) could be applied to the neighbouring English Channel, which suggested similarities between their fishing cost structures. Finally, the comparison of design-based and model-based cost estimates for the Bay of Biscay French fleet confirmed that modelling fishing costs on the basis of a small set of explanatory variables is a good alternative to design-based estimates which generally require costly annual sampling programs.

Suggested Citation

  • Fabienne Daurès & Verena M. Trenkel & Olivier Guyader, 2013. "Modelling the fishing costs of French commercial vessels in the Bay of Biscay," Post-Print hal-00873138, HAL.
  • Handle: RePEc:hal:journl:hal-00873138
    DOI: 10.1016/j.fishres.2013.03.022
    Note: View the original document on HAL open archive server: https://hal.archives-ouvertes.fr/hal-00873138
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