Minimising Conflicts in Mixed-Fisheries Management Using Flexible Harvest Control Rules Public Deposited

http://ir.library.oregonstate.edu/concern/conference_proceedings_or_journals/f4752h74c

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  • When different species are caught together in mixed-fisheries but are managed under single-species management plans may lead to TACs of some species being exhausted before other. This leads to conservation and socio-economic problems in fisheries, where agreed harvest levels cannot be obtained for some stocks, while other stocks may be overharvested, and catches may be discarded by fishers on board. Socio-economic problems become more serious if landing obligations are put in place and discarding is no longer allowed.  One way forward would be to develop integrated and flexible harvest control rules, where annual targets of fishing mortality by stock would be those minimizing mismatches across the sets of TACs and reducing risks of adverse economic incentives, within the range of those achieving “Pretty Good Yield” around MSY targets. In this study, we do simulations for the demersal fisheries in the North Sea. These simulations evaluate the harvest rates, resource rents and landings for several management strategies and incorporate the uncertainty in future stock productivity. Parameterization of the simulation model includes most demersal stocks and fishing fleets in the North Sea. Our results shed light on the benefits of different strategies that aim for achieving both the biological and the economic objectives of the European Common Fisheries Policy.
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  • Ulrich, Clara, P. Dolder, A. Hoff, A. Kempf, J. Poos, A. Rindorf, Y. Vermard. 2014. Minimising Conflicts in Mixed-Fisheries Management Using Flexible Harvest Control Rules. In: Towards ecosystem based management of fisheries: what role can economics play?: Proceedings of the Seventeenth Biennial Conference of the International Institute of Fisheries Economics and Trade, July 7-11, 2014, Brisbane, Australia. Complied by Ann L. Shriver & Melissa Errend. Corvallis, OR: International Institute of Fisheries.
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