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ICES Journal of Marine Science: Journal du Conseil Advance Access originally published online on July 25, 2008
ICES Journal of Marine Science: Journal du Conseil 2008 65(8):1449-1455; doi:10.1093/icesjms/fsn124
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© 2008 International Council for the Exploration of the Sea. Published by Oxford Journals. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

This article appears in the following ICES Journal of Marine Science issue: Marine Environmental Indicators: Utility in Meeting Regulatory Needs [View the issue table of contents]

Evaluating potential indicators for an ecosystem approach to fishery management in European waters

Gerjan J. Piet1, Henrice M. Jansen1 and Marie-Joëlle Rochet2

1 Wageningen IMARES, PO Box 68, 1970 AB Imuiden, the Netherlands
2 IFREMER, Département Ecologie et Modèles pour l'Halieutique, BP 21105, 44311 Nantes Cedex 03, France

Correspondence to G. J. Piet: tel: +31 255 564699; fax: +31 255 564644; e-mail: gerjan.piet{at}wur.nl

Piet, G. J., Jansen, H. M., and Rochet, M-J. 2008. Evaluating potential indicators for an ecosystem approach to fishery management in European waters. – ICES Journal of Marine Science, 65: 1449–1455.

This study describes the process of evaluating potential indicators for an ecosystem approach to fishery management in European waters by evaluating these indicators against existing criteria using questionnaires completed by experts. We (i) compare the use of a longer list of simple criteria with a shorter list of elaborate ones; (ii) compare evaluation results when screening criteria are applied to specific indicators vs. high-level headline indicators; and (iii) examine whether detailed questionnaires, with elaborate indicators and elaborate criteria, result in ranked scores that are less influenced by familiarity with the indicators. The results show that the ranked scores of indicators are affected by the level of detail, both in terms of criteria and indicators, provided in the questionnaires. It appears that adding detail to the questionnaires makes the scoring process more transparent and provides better founded scores; at a certain point, however, more-detailed indicators and/or more-detailed criteria result in decreased performance of the scoring process, reflecting mostly factors that do not determine the suitability of the indicator (e.g. the level of familiarity), while giving the false impression of a more thorough analysis.

Keywords: ecosystem approach, evaluation criteria, headline indicators, questionnaire

Received 14 December 2007; accepted 25 March 2008; advance access publication 25 July 2008.


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