1. Department of Aquatic Resources, Institute of Marine Research Swedish University of Agricultural Sciences Lysekil Sweden
2. Thünen Institute of Baltic Sea Fisheries Rostock Germany
3. National Institute of Aquatic Resources Technical University of Denmark Silkeborg Denmark
4. National Institute of Aquatic Resources Technical University of Denmark Kemitorvet, Kgs. Lyngby Denmark
5. Fish Resource Research Department, Institute of Food Safety Animal Health and Environment Riga Latvia
6. National Marine Fisheries Research Institute Gdynia Poland
7. Department of Biological, Geological and Environmental Sciences University of Bologna Bologna Italy