1. Chair of Aquaculture, Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, 46A Kreutzwaldi St., 51006 Tartu, Estonia
2. Biodiversity Unit, University of Turku, 20014 Turku, Finland
3. Department of Biology, University of Turku, 20014 Turku, Finland
4. Department of Aquatic Resources, Institute of Freshwater Research, Swedish University of Agricultural Sciences, Stångholmsvägen 2, 17893 Drottningholm, Sweden
5. Department of Aquaculture, Institute of Marine Research, Nordnes, PO Box 1870, 5817 Bergen, Norway
6. Tmi Olli van der Meer, Hiomonkatu 14, 90850 Haukipudas, Finland
7. County Governor of Troms and Finnmark, 9800 Vadsø, Norway