TROMEUR, Eric; DOYEN, Luc

doi:10.1007/s10666-018-9618-2

Métadonnées

Afficher la notice complète

Licence d’utilisation du document

TROMEUR, Eric
Groupe de Recherche en Economie Théorique et Appliquée [GREThA]

DOYEN, Luc

Groupe de Recherche en Economie Théorique et Appliquée [GREThA]

Langue

Article de revue

Ce document a été publié dans

Environmental Modeling & Assessment. 2018 n° 24, p. 387–403

Résumé en anglais

s marine ecosystems are under pressure worldwide, many scientists and stakeholders advocate the use of ecosystem-based approaches for fishery management. In particular, management policies are expected to account for the multispecies nature of fisheries. However, numerous fisheries management plans remain based on single-species concepts, such as maximum sustainable yield (MSY) and maximum economic yield (MEY), that respectively aim at maximizing catches or profits of single species or stocks. In this study, we assess the bioeconomic sustainability of multispecies MSY and MEY in a mixed fishery, characterized by technical interactions and therefore joint production. First, we analytically show how multispecies MSY and MEY can induce overharvesting and extinction of species with low productivity and low value. Second, we identify and discuss incentives on effort costs and landing prices, as well as technical regulations, that could promote biodiversity conservation and more globally sustainability. Finally, a numerical example based on the coastal fishery in French Guiana illustrates the analytical findings.< Réduire

Mots clés en anglais

Multispecies fishery

Ecosystem-based fisheries management

Maximum sustainable yield

Maximum economic yield

Overexploitation

Technical interaction

Métadonnées

Partager cette publication !

Licence d’utilisation du document

Optimal Harvesting Policies Threaten Biodiversity in Mixed Fisheries

Langue

Ce document a été publié dans

Résumé en anglais

Mots clés en anglais

URI

DOI

Unités de recherche