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ICES Journal of Marine Science: Journal du Conseil Advance Access originally published online on April 5, 2007
ICES Journal of Marine Science: Journal du Conseil 2007 64(4):761-767; doi:10.1093/icesjms/fsm024
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© 2007 International Council for the Exploration of the Sea. Published by Oxford Journals. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Is a management framework based on spawning-stock biomass indicators sustainable? A viability approach

Michel De Lara1, Luc Doyen2, Thérèse Guilbaud3 and Marie-Joëlle Rochet3,

1 CERMICS, École des ponts, Paris Tech, 6-8 avenue Blaise Pascal, Champs sur Marne, 77455 Marne la Vallée Cedex 2, France
2 CNRS, CEREPS, Muséum National d'Histoire Naturelle, 55 rue Buffon, 75005 Paris, France
3 Département EMH, IFREMER, Rue de l'Ile d'Yeu, B.P. 21105, 44311 Nantes Cedex 03, France

Correspondence to M-J. Rochet: tel: +33 2 40 37 41 21, fax: +33 2 40 37 40 75, e-mail: mjrochet{at}ifremer.fr

De Lara, M., Doyen, L., Guilbaud, Th., and Rochet, M-J. 2007. Is a management framework based on spawning-stock biomass indicators sustainable? A viability approach. – ICES Journal of Marine Science, 64: 761–767: 000–000.

Fisheries management agencies have to drive resources on sustainable paths, i.e. within defined boundaries for an indefinite time. The viable-control approach is proposed as a relevant method to deal with sustainability. We analyse the ICES precautionary approach (PA) by means of the notion of viability domain, and provide a mathematical test for sustainability. It is found that the PA based on spawning-stock biomass (SSB) and fishing mortality (F) indicators is sustainable only when recruits make a significant contribution to SSB. In this case, advice based upon SSB, with an appropriate reference point, is sufficient to ensure sustainability. In all other cases, SSB is not a sufficient metric of stock productivity and must be complemented with other management indicators to ensure sustainability. The approach is illustrated with numerical applications to the northern hake and Bay of Biscay anchovy.

Keywords: ICES precautionary approach, indicators, sustainable management, viability

Received 30 June 2006; accepted 10 January 2007; advance access publication 5 April 2007.


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