1. Ifremer, University of Western Brittany, CNRS, UMR 6308, AMURE, Unité d’Economie Maritime, IUEM, F-29280 Plouzané, France
2. IRD, University of Western Brittany, CNRS, Ifremer, UMR 6539, LEMAR, Laboratoire des Sciences de l’Environnement Marin, IUEM, F-29280 Plouzané, France
3. Ministry for Agriculture, Fisheries and Animal Rights, VLT 1455 Valletta, Malta