1. Institute of Marine Science (ICM-CSIC), Passeig Marítim de la Barceloneta 37–49, 08003 Barcelona, Spain, and Department of Biology, Dalhousie University, Halifax, NS, CanadaB3H 4J1
2. Marine Research Institute and Zoology Department, University of Cape Town, Private Bag X3, Rondebosch, Cape Town 7701, South Africa
3. Marine and Coastal Management, Department of Environmental Affairs and Tourism, Private Bag X2, Rogge Bay 8012, South Africa
4. National Marine Fisheries Service, Northeast Fisheries Science Center, 166 Water Street, Woods Hole, MA 02543, USA
5. Estonian Marine Insitute, University of Tartu, Lootsi 2a, 80012 Pärnu, Estonia
6. Departamento de Oceanografía, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160-C, Concepción, Chile
7. Institut de Recherche pour le Développement (IRD), Laboratoire ECOLAG (UMR 5119), Université Montpellier II, Place E. Bataillon, 34095 Montpellier Cedex 5, France
8. Oceanographic and Fisheries, Mauritanian Research Institute (IMROP), BP 22, Nouadhibou, Mauritania
9. Dunstaffnage Marine Laboratory, Scottish Association for Marine Science, Oban PA37 1QA, Scotland
10. CSIRO Marine and Atmospheric Research, GPO Box 1538, Hobart, Tasmania 7001, Australia
11. Institut de Recherche pour le Développement, UMR 212 EME, Avenue Jean Monnet, BP 171, 34203 Sète Cedex, France