Achieving sustainable Fisheries: gradually or abruptly?

Vincent Martinet and Olivier Thébaud ()
Additional contact information
Olivier Thébaud: AMURE - Aménagement des Usages des Ressources et des Espaces marins et littoraux - Centre de droit et d'économie de la mer - IFREMER - Institut Français de Recherche pour l'Exploitation de la Mer - UBO - Université de Brest - IUEM - Institut Universitaire Européen de la Mer - IRD - Institut de Recherche pour le Développement - INSU - CNRS - Institut national des sciences de l'Univers - UBO - Université de Brest - CNRS - Centre National de la Recherche Scientifique - CNRS - Centre National de la Recherche Scientifique

Post-Print from HAL

Abstract: A key issue in fisheries restoration is the speed at which recovery can occur, while still meeting the economic and social constraints which managers must deal with. This paper uses the viable control approach to examine fisheries restoration and study the tradeoffs involved with the selection of recovery strategies. We define sustainability as a combination of biological, economic and social constraints which need to be met for a viable fishery to exist. The set of states for which constraints are met, or viable states, is considered as the target for recovery of the fishery. The analysis is based on a discrete time bioeconomic model of the Bay of Biscay nephrops fishery, with stock biomass and fleet size as the two state variables, and per vessel fishing effort and adjustment of fleet size as the two control variables. We address the particular optimal control problem of minimizing the time required for the fishery to recover from unsustainable states, under a minimum transition-profit constraint corresponding to the need to maintain a minimum level of revenue for vessels during the transition phase. We apply this framework to a historical crisis situation in the case study, and analyze various recovery paths with different transition profit constraints, including the historical path followed by the fishery.

Keywords: sustainable fisheries; multicriteria; recovery; bioeconomic modeling (search for similar items in EconPapers)
Date: 2008-07-22
References: Add references at CitEc
Citations:

Published in Achieving a Sustainable Future : Managing Aquaculture, Fishing, Trade and Development, Jul 2008, Nha Trang, Vietnam. pp.CD ROM

There are no downloads for this item, see the EconPapers FAQ for hints about obtaining it.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-00358342

Access Statistics for this paper

More papers in Post-Print from HAL
Bibliographic data for series maintained by CCSD ().