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Untitled - The Future Ocean

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2.2.1 Research Topic B1: Living Resources and Over-FishingCoordinators:Prof. Requate, TillProf. Sommer, Ulrich19.09.1957 01.09.1952Christian-Albrechts-Universität zu KielLeibniz-Institut für MeereswissenschaftenInstitut für VolkswirtschaftslehreFB3: Marine ÖkologieWilhelm-Seelig Platz 1Düsternbrooker Weg 2024118 Kiel24105 KielTel.: 0431-880 4424Tel.: 0431-600 4400Fax: 0431-880 1618Fax: 0431-600 4402Email: requate@wiso.uni-kiel.deEmail: usommer@ifm-geomar.deDr. Froese, Rainer25.08.1950Leibniz-Institut für MeereswissenschaftenFB3: Marine ÖkologieDüsternbrooker Weg 2024105 KielTel.: 0431-600 4579Fax: 0431-600 1699Email: rfroese@ifm-geomar.deFurther Proponents: F. Colijn, S. Garthe, G. Kraus, R. Hanel, U. Piatkowski, D. Schnack,R. Schneider, U. Siebert1. Summary / ZusammenfassungFishery exerts a prominent influence on marine ecosystems with direct effects on utilized and nonutilizedspecies and their habitats (Pauly et al. 1998). Poorly defined property rights, the failure ofinternational coordination and distorting subsidy policies have led to extremely high fishingcapacities and stock levels near the risk of extinction. <strong>The</strong> lower food web is influenced byanthropogenic environmental change affecting energy transfer from primary to fish production.Despite the obvious policy failure, there is agreement that future management regimes must dealwith rebuilding healthy ecosystems and new forms of governance. <strong>The</strong> aim of the new JRG is toapply a multidisciplinary approach toward new fishery management, focusing on advanced systemanalysis and a system of ecological and economic indicators which permit scrutiny of the successof fishery management scenarios (cf. Figure). Major issues are combining dynamic ecosysteminteractions, the stochastic nature of processes and climatic trends in a common modelingframework. <strong>The</strong> novelty of the economic approach is to use modern biological models to substituteGordon-Schaefer-based models for the management of renewable resources and to include tuningprocedures based on simple ecological and economic indicators. Intertemporal and optimalexploitation paths must be characterized, and decentralized management rules and policies whichare suitable for the implementation of these paths must be explored.63

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