1. Station marine d'Endoume, OSU Pytheas, MIO, GIS Posidonie, Université Aix-Marseille, F-13007 Marseille (France) jean-georges.harmelin@univ-amu.fr
2. Marine Biological Association of the UK, Citadel Hill Laboratory, Plymouth PL1 2PB (United Kingdom)
3. Institute of Marine Sciences (ICM-CSIC), Passeig Marítim de la Barceloneta 37-49, E-08003 Barcelona, Catalonia (Spain)
4. Institut für Paläontologie, Geozentrum, University of Vienna, Althanstrasse 14, A-1090 Wien (Austria)
5. Department of Life Sciences, Natural History Museum, Cromwell Road, London, SW7 5BD (United Kingdom)
6. Department d'Ecologia, Universitat de Barcelona (UB), Diagonal 645, E-08028 Barcelona, Catalonia (Spain)