1. Research and Technology Centre West Coast/Forschungs- und Technologiezentrum Westküste, Kiel University, Büsum, Germany
2. Life Science and Technology, Groningen University, (RUG), Groningen, The Netherlands
3. Fish Capture, Institute of Marine Research/Havforskningsinstituttet, Bergen, Postboks 1870 Nordnes, Norway
4. Ecosystem Acoustics, Institute of Marine Research/Havforskningsinstituttet, Bergen, Postboks 1870 Nordnes, Norway