Ecoviability for ecosystem-based fisheries management

Type Article
Date 2017-11
Language English
Author(s) Doyen Luc1, Bene Christophe2, Bertignac MichelORCID3, Blanchard FabianORCID4, Cisse Abdoul4, Dichmont Catherine5, Gourguet SophieORCID6, Guyader Olivier6, Hardy Pierre-Yves7, Jennings Sarah8, Little Lorne Richard9, Macher ClaireORCID6, Mills David Jonathan10, 11, Noussair Ahmed12, Pascoe Sean5, Pereau Jean-Christophe1, Sanz Nicolas4, Schwarz Anne-Maree10, Smith Tony, Thebaud OlivierORCID5, 6
Affiliation(s) 1 : Univ Bordeaux, CNRS, GREThA, Pessac, France.
2 : CIAT, Decis & Policy Anal Program, Cali, Colombia.
3 : IFREMER, Unite Sci & Technol Halieut, Plouzane, France.
4 : UMSR Univ Guyane, LEEISA, CNRS, IFREMER, Cayenne, France.
5 : CSIRO, Oceans & Atmosphere, Brisbane, Qld, Australia.
6 : Univ Brest, CNRS, IFREMER, Unite Econ Maritime,IUEM,AMURE,UMR 6308, Plouzane, France.
7 : Univ Montpellier 3, CEFE, CNRS, Montpellier, France.
8 : Univ Tasmania, Ctr Marine Socioecol, Hobart, Tas, Australia.
9 : CSIRO, Oceans & Atmosphere, Hobart, Tas, Australia.
10 : WorldFish, Honiara, Solomon Islands.
11 : James Cook Univ, ARC Ctr Excellence Coral Reef Studies, Townsville, Qld, Australia.
12 : Univ Bordeaux, IMB, Bordeaux, France.
Source Fish And Fisheries (1467-2960) (Wiley), 2017-11 , Vol. 18 , N. 6 , P. 1056-1072
DOI 10.1111/faf.12224
WOS© Times Cited 6
Keyword(s) biodiversity, ecological economics, ecosystem approach, fisheries, scenario, viability
Abstract

Reconciling food security, economic development and biodiversity conservation is a key challenge, especially in the face of the demographic transition characterizing many countries in the world. Fisheries and marine ecosystems constitute a difficult application of this bio-economic challenge. Many experts and scientists advocate an ecosystem approach to manage marine socio-ecosystems for their sustainability and resilience. However, the ways by which to operationalize ecosystem-based fisheries management (EBFM) remain poorly specified. We propose a specific methodological framework-viability modelling-to do so. We show how viability modelling can be applied using four contrasted case-studies: two small-scale fisheries in South America and Pacific and two larger-scale fisheries in Europe and Australia. The four fisheries are analysed using the same modelling framework, structured around a set of common methods, indicators and scenarios. The calibrated models are dynamic, multispecies and multifleet and account for various sources of uncertainty. A multicriteria evaluation is used to assess the scenarios' outcomes over a long time horizon with different constraints based on ecological, social and economic reference points. Results show to what extent the bio-economic and ecosystem risks associated with the adoption of status quo strategies are relatively high and challenge the implementation of EBFM. In contrast, strategies called ecoviability or co-viability strategies, that aim at satisfying the viability constraints, reduce significantly these ecological and economic risks and promote EBFM. The gains associated with those ecoviability strategies, however, decrease with the intensity of regulations imposed on these fisheries.

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Doyen Luc, Bene Christophe, Bertignac Michel, Blanchard Fabian, Cisse Abdoul, Dichmont Catherine, Gourguet Sophie, Guyader Olivier, Hardy Pierre-Yves, Jennings Sarah, Little Lorne Richard, Macher Claire, Mills David Jonathan, Noussair Ahmed, Pascoe Sean, Pereau Jean-Christophe, Sanz Nicolas, Schwarz Anne-Maree, Smith Tony, Thebaud Olivier (2017). Ecoviability for ecosystem-based fisheries management. Fish And Fisheries, 18(6), 1056-1072. Publisher's official version : https://doi.org/10.1111/faf.12224 , Open Access version : https://archimer.ifremer.fr/doc/00409/52009/