LAGARDE, Adrien; DOYEN, Luc; CLAUDET, Joachim; THEBAUD, Olivier

doi:10.1007/s10666-022-09847-0

Bordeaux Sciences Economiques [BSE]

DOYEN, Luc

Bordeaux Sciences Economiques [BSE]

CLAUDET, Joachim
Centre de recherches insulaires et observatoire de l'environnement [CRIOBE]

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Article de revue

Ce document a été publié dans

Environmental Modeling & Assessment. 2022-09, vol. 27, n° 5, p. 771-789

Résumé en anglais

This paper investigates the ecological-economic sustainability of coral reef socio-ecological systems under fishing and environmental pressures. To achieve this, a dynamic, spatially explicit, multi-species, multi-fleet fisheries model is developed. Stochastic environmental shocks are assumed to alter coral cover and consequently the entire coral reef social-ecological system. The model is calibrated using ecological, socioeconomic and environmental data in French Polynesia. Four exploratory fishing strategies and a goal-seeking strategy entitled Stochastic Multi-Species Maximum Sustainable Yield (SMMSY) are compared in terms of ecological-economic outcomes and sustainability of the socio-ecological system. The SMMSY turns out to promote ecological-economic sustainability. It is characterised by a global increase in fishing effort pointing to the relative current under-exploitation of the fishery. SMMSY balances the trophic level of catches after natural shocks and sustains the fundamental herbivore grazing process. SMMSY strategies are also more diversified in terms of temporality, gears, spatial distribution of fishing and target species.< Réduire

Mots clés en anglais

Ecological-economics

Biodiversity

Ecosystems

Scenarios

Small-scale fisheries

Sustainability

Resilience

French Polynesia

URI

https://oskar-bordeaux.fr/handle/20.500.12278/171915

DOI

http://dx.doi.org/10.1007/s10666-022-09847-0

Project ANR

Capacité d'adaptation, résilience et changement de régime des récifs coralliens au sein des systèmes côtiers socio-écologiques - ANR-14-CE03-0001

Unités de recherche

Bordeaux Sciences Economiques / Bordeaux School of Economics (BSE) - UMR 6060

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Stochastic Multi-species MSY to Achieve Ecological-Economic Sustainability of a Coral Reef Fishery System in French Polynesia