IDEAS home Printed from https://ideas.repec.org/p/hal/journl/hal-00813329.html
   My bibliography  Save this paper

Capacity management, not stock status or economics, drives fleet dynamics in the Bay of Biscay ecosystem on a decadal time scale

Author

Listed:
  • Marie-Joëlle Rochet

    (EMH - Unité Écologie et Modèles pour l'Halieutique - IFREMER - Institut Français de Recherche pour l'Exploitation de la Mer)

  • Fabienne Daures

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

  • Verena M. Trenkel

    (EMH - Unité Écologie et Modèles pour l'Halieutique - IFREMER - Institut Français de Recherche pour l'Exploitation de la Mer)

Abstract

This paper introduces a semiqualitative approach to analyse the joint dynamics of fleets and stocks in a multispecies, multifleet fishery. We ask whether changes in fleets affect resource dynamics and whether trends in resource influence fleet dynamics more than external drivers do. External drivers include vessel buyback, fuel price, and fish prices, as well as environmental fluctuations. Resource status is measured by abundance and length metrics; fleet capacity is measured by total horse power, and economic metrics such as profitability and earnings are examined as well. A maximum likelihood approach is used to identify the combined metric trends with the largest support in the data. The approach is applied to the French Bay of Biscay fisheries in 2000-2007. Combined-metric time trends suggest that decreases in fleet capacity did not result in decreasing fishing impacts; trends in stocks and fish prices were not the major drivers of changes in fleets either. Rather, the vessel buyback program might have been the main factor determining fleet dynamics over that period.

Suggested Citation

  • Marie-Joëlle Rochet & Fabienne Daures & Verena M. Trenkel, 2012. "Capacity management, not stock status or economics, drives fleet dynamics in the Bay of Biscay ecosystem on a decadal time scale," Post-Print hal-00813329, HAL.
    • Handle: RePEc:hal:journl:hal-00813329
    DOI: 10.1139/f2012-002
    as

    Download full text from publisher

    To our knowledge, this item is not available for download. To find whether it is available, there are three options:
    1. Check below whether another version of this item is available online.
    2. Check on the provider's web page whether it is in fact available.
    3. Perform a search for a similarly titled item that would be available.

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Chaalali, Aurélie & Beaugrand, Grégory & Raybaud, Virginie & Lassalle, Géraldine & Saint-Béat, Blanche & Le Loc’h, François & Bopp, Laurent & Tecchio, Samuele & Safi, Georges & Chifflet, Marina & Lobr, 2016. "From species distributions to ecosystem structure and function: A methodological perspective," Ecological Modelling, Elsevier, vol. 334(C), pages 78-90.
    2. Verena M Trenkel & Fabienne Daurès & Marie-Joëlle Rochet & Pascal Lorance, 2013. "Interannual Variability of Fisheries Economic Returns and Energy Ratios Is Mostly Explained by Gear Type," PLOS ONE, Public Library of Science, vol. 8(7), pages 1-9, July.
    3. Börger, Tobias & Beaumont, Nicola J. & Pendleton, Linwood & Boyle, Kevin J. & Cooper, Philip & Fletcher, Stephen & Haab, Tim & Hanemann, Michael & Hooper, Tara L. & Hussain, S. Salman & Portela, Rosim, 2014. "Incorporating ecosystem services in marine planning: The role of valuation," Marine Policy, Elsevier, vol. 46(C), pages 161-170.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:hal:journl:hal-00813329. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: CCSD (email available below). General contact details of provider: https://hal.archives-ouvertes.fr/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.