1. Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory, Suffolk NR33 0HT, UK
2. Institute of Marine Science (ICM–CSIC), Passeig Marítim de la Barceloneta 37-49, 08002 Barcelona, Spain, and Department of Biology, Dalhousie University, Halifax, NS, CanadaB3H 4J1
3. Ifremer, Rue de l'Ile d'Yeu, BP 21105, 44311, Nantes cedex 03, France
4. Department of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield S10 2TN, UK
5. Marine and Coastal Management, Department of Environmental Affairs and Tourism, Private Bag X2, Rogge Bay 8012, South Africa
6. Institut de Recherche pour le Développement (IRD), Laboratoire ECOLAG (UMR 5119), Université Montpellier II, Place E. Bataillon, 34095 Montpellier cedex 5, France
7. National Marine Fisheries Service, Northeast Fisheries Science Center, 166 Water Street, Woods Hole, MA 02543, USA
8. Institut de Recherche pour le Développement, UMR 212 EME, avenue Jean Monnet, BP 171, 34203 Sète cedex, France