Modelling the world system of small pelagic fisheries

Christian Mullon (), Jean-François Mittaine (), Guillaume Péron (), Olivier Thébaud (), Manuel Barange (), Gorka Merino () and Thomas Guillon
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Christian Mullon: UMR EME - Ecosystèmes Marins Exploités - IRD - Institut de Recherche pour le Développement - IFREMER - Institut Français de Recherche pour l'Exploitation de la Mer - UM - Université de Montpellier
Guillaume Péron: 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
Olivier Thébaud: 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, EM - Unité d'Economie Maritime - IFREMER - Institut Français de Recherche pour l'Exploitation de la Mer
Manuel Barange: GLOBEC IPO - Plymouth Marine Laboratory
Thomas Guillon: UMR EME - Ecosystèmes Marins Exploités - IRD - Institut de Recherche pour le Développement - IFREMER - Institut Français de Recherche pour l'Exploitation de la Mer - UM - Université de Montpellier

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Abstract: Small pelagic fisheries produce more than 25% of the fish caught in the ocean. Their production is mainly dedicated to fish meal and fish oil production (more than 80%). In this system, there is a tension between a highly variable natural system and a more rigid economic system, with a high increase in demand. To make explicit the stakes of the management of this system, we propose a bioeconomic model, coupling the ecological and economic dynamics. The coupling is based on the computing of global equilibrium, on the network which interconnects the marine production systems (ecosystems, fisheries and manufacturing) and the fish product markets (fish oil and fish meal) all around the world. This model allows the consequences of several management hypotheses to be analysed (increase of carrying capacity of ecosystems through climate changes, politics of total allowable catches, etc.). To illustrate the model's behaviour we propose sensitivity analysis of the model results, with changes in specific values. We have derived from this work a dedicated role playing game in which players are not the stakeholders directly involved in the fishery business, but their delegates: South American, or European fisheries and industries, fish meal or fish oil buyers from Europe or China, scientific institutions studying the Atlantic or Pacific Oceans, international organisations from the Pacific or Europe. We present different plays of the game, leading to very different emergence of coordination or conflicts. This approach should help to anticipate negotiations about global management of small pelagic fisheries.

Date: 2008-07-08
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Published in International symposium on Coping with global change in marine social-ecological systems, FAO, Jul 2008, Rome, Italy

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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-00368499

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