Skip Navigation

ICES Journal of Marine Science: Journal du Conseil 2005 62(3):585-591; doi:10.1016/j.icesjms.2005.01.008
This Article
Right arrow Full Text Freely available
Right arrow FREE Full Text (PDF) Freely available
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Tudela, S.
Right arrow Articles by Palomera, I.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Tudela, S.
Right arrow Articles by Palomera, I.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© 2005 International Council for the Exploration of the Sea

Developing an operational reference framework for fisheries management on the basis of a two-dimensional index of ecosystem impact

Sergi Tudelaa,*, Marta Collb and Isabel Palomerab

a WWF Mediterranean Programme Canuda 37, 08002 Barcelona, Spain
b Institute of Marine Sciences (ICM-CSIC) Passeig Marítim de la Barceloneta 37-49, 08003 Barcelona, Spain

*Correspondence to S. Tudela: tel: +34 93 3056252; fax: +34 93 2788030. e-mail: studela{at}atw-wwf.org.

A composite quantitative index for the percentage of primary production required to sustain fisheries and the average trophic level of catch (%PPR–TLc) was employed to develop ecosystem-based reference functions suitable for fisheries management. Established ecosystem models, characterized by pairs of %PPR–TLc, were classified as either sustainably exploited or ecosystem overfished, on the basis of the results of factorial correspondence analysis applied to selected ecological indices, and on information from various sources. Canonical discriminant analysis of these pairs was applied to establish the discriminant function to separate the two exploitation classes. Next, reference functions related to different probabilities of ecosystem overfishing were developed to obtain an operational framework for ecosystem-based fisheries management. Values of ecosystem-based maximum sustainable catches associated with different probabilities of belonging to a sustainable situation were calculated. Overall, results show that most current fishing scenarios entail high risks of ecosystem overfishing.

Keywords: ecosystem approach to fisheries, ecosystem index, ecosystem overfishing, fisheries management, primary production, reference function, trophic level of catch

Received 1 April 2004; accepted 3 November 2004.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 ICES J. Mar. Sci.Home page
K. Tsagarakis, A. Machias, M. Giannoulaki, S. Somarakis, and I. Karakassis
Seasonal and temporal trends in metrics of fish community for otter-trawl discards in a Mediterranean ecosystem
ICES J. Mar. Sci., May 1, 2008; 65(4): 539 - 550.
[Abstract] [Full Text] [PDF]


Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.