1. Technical University of Denmark, National Institute of Aquatic Resources, Jægersborg Alle 1, Charlottenlund 2920, Denmark
2. GEOMAR; Helmholtz Centre for Ocean Research, Düsternbrooker Weg 20, Kiel 24105, Germany
3. Institute of Food Safety, Animal Health and Environment, Fishery Resources Research Department, Daugavgrivas 8, Riga 1048, Latvia
4. National Marine Fisheries Research Institute, Kollataja 1, Gdynia 81-332, Poland
5. Institute for Hydrobiology and Fisheries Science, Olbersweg 24, Hamburg 22767, Germany
6. Thünen Institute of Baltic Sea Fisheries, Alter Hafen Süd 2, Rostock 18069, Germany