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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Estimating EAF indicators from scientific trawl surveys: Theoretical and practical concerns
ICES Journal of Marine Science, Volume 67, No. 4, Year 2010
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Description
Under the context of an ecosystem approach to fisheries (EAF), there is keen interest in providing insights into the evolution of exploited ecosystems using simple ecosystem indicators. Many nations have long-term scientific research surveys, originally driven by conventional approaches in fisheries assessment and management. The aim of this study is to address the practical concerns linked to current objectives of monitoring simple EAF indicators, using data from surveys that were not historically designed for the purpose. Based on the results of an expert survey designed to collect expert knowledge on research surveys from scientists working on different ecosystems worldwide, a list of challenges faced during indicator estimation is highlighted, along with associated concerns and constraints. The work provides additional information useful in the interpretation of the results obtained on the state and trends of ecosystems using EAF indicators by the IndiSeas WG. Further, the related discussion provides potential pathways that could be useful for future research and development aiming to improve the ecosystem indicator approach in the operational context of EAF. The question of the utility for EAF of using historical dataseries of scientific trawl series is also discussed. Such long-term series are concluded to be useful, that they are even inescapable (since the past cannot be resamplied), and that EAF therefore brings a supplementary reason for continuing such monitoring and to incorporate new insights in how research surveys may be conducted. © 2009 International Council for the Exploration of the Sea. Published by Oxford Journals. All rights reserved.
Authors & Co-Authors
Jouffre, Didier
France, Sete
Marbec Marine Biodiversity, Exploitation and Conservation
Borges, Maria de Fátima
Portugal, Lisbon
Instituto Português do Mar e da Atmosfera
Bundy, Alida
Canada, Dartmouth
Bedford Institute of Oceanography, Fisheries and Oceans Canada
Coll, Marta
Spain, Barcelona
Csic - Instituto de Ciencias Del Mar Icm
Canada, Halifax
Dalhousie University
Diallo, Ibrahima
Equatorial Guinea
Centre National Des Sciences Halieutiques de Boussoura Cnshb
Fulton, Elizabeth Ann
Australia, Hobart
Csiro Marine and Atmospheric Research
Guitton, Jérôme Rôme
France, Rennes
Université Européenne de Bretagne
Labrosse, Pierre
Mauritania, Nouadhibou
Institut Mauritanien de Recherches Océanographiques et Des Pêches
Abdellahi, Khairdine Ould Mohamed
Mauritania, Nouadhibou
Institut Mauritanien de Recherches Océanographiques et Des Pêches
Masumbuko, Bora
Senegal, Dakar
Institut de Recherche Pour le Développement Dakar
Thiao, Djiga
Senegal, Dakar
Centre de Recherches Océanographiques de Dakar-thiaroye Crodt
Statistics
Citations: 25
Authors: 11
Affiliations: 11
Identifiers
Doi:
10.1093/icesjms/fsp285
ISSN:
10543139
e-ISSN:
10959289
Study Design
Cross Sectional Study
Study Approach
Quantitative