A stochastic viability approach to ecosystem-based fisheries management

Type Article
Date 2012-03
Language English
Author(s) Doyen Luc1, Thebaud OlivierORCID2, 3, Bene Christopher5, Martinet V.4, Gourguet S.1, Bertignac MichelORCID6, Fifas Spyros6, Blanchard FabianORCID7
Affiliation(s) 1 : MNHN, CNRS, UMR CERSP, F-75005 Paris, France.
2 : IFREMER, UMR AMURE, Dept Econ Maritime, F-29280 Plouzane, France.
3 : CSIRO Marine & Atmospher Res, Cleveland, Qld 4163, Australia.
4 : INRA, UMR 210, F-78850 Thiverval Grignon, France.
5 : Univ Sussex, Inst Dev Studies, Brighton BN1 9RE, E Sussex, England.
6 : IFREMER, Ctr Brest, Lab Biol Halieut, F-29280 Plouzane, France.
7 : IFREMER, Lab Ressources Halieut Guyane, Dept Halieut Mediterranee & Trop, Guyane, France.
Source Ecological Economics (0921-8009) (Elsevier Science Bv), 2012-03 , Vol. 75 , P. 32-42
DOI 10.1016/j.ecolecon.2012.01.005
WOS© Times Cited 41
Keyword(s) Ecosystem based fisheries management, Viability, Stochastic, Nephrops, Hake
Abstract Academia and management agencies show a growing interest for ecosystem-based fishery management (EBFM). However, the way to operationalize this approach remains challenging. The present paper illustrates how the concepts of stochastic co-viability, which accounts for dynamic complexities, uncertainties, risk and sustainability constraints, can be useful for the implementation of EBFM. In the present case, this concept is used to identify fishing strategies that satisfy both ecological conservation and economic sustainability in a multi-species, multi-fleet context. Economic Viability Analysis (EVA) and the broader Co-Viability Analysis (CVA), are proposed to expand the usual Population Viability Analysis (PVA) and precautionary approach. An illustration is proposed, using data on the fisheries of Bay of Biscay (France) exploiting the stocks of nephrops and hake. Stochastic simulations show how CVA can guarantee both ecological (stock) and economic (profit) sustainability. Using 2008 as a baseline, the model is used to identify fishing efforts that ensure such co-viability. (C) 2012 Elsevier B.V. All rights reserved.
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