1. Netherlands Institute for Sea Research and Utrecht University, Department of Estuarine and Delta Systems, Yerseke 4401 NT, The Netherlands
2. Centre for Environment, Fisheries and Aquaculture Science (CEFAS), Lowestoft Laboratory, Lowestoft NR33 0HT, UK
3. Norwegian Institute for Nature Research (NINA), 9296 Tromsø, Norway
4. Wageningen Marine Research, Wageningen University & Research, IJmuiden 1970 AB, The Netherlands
5. IFREMER, Laboratoire Ecologie et Modèles pour l’Halieutique, 44311 Nantes, France