1. 1Max Planck Institute for Marine Microbiology, Bremen, Germany
2. 2Department of Arctic and Marine Biology, UiT—The Arctic University of Norway, Tromsø, Norway
3. 3Akvaplan-niva, Tromsø, Norway
4. 4Marine Biology Research Group, Ghent University, Ghent, Belgium
5. 5Coastal Carolina University, Conway, SC, USA
6. 6MARUM, Center for Marine Environmental Sciences, University Bremen, Bremen, Germany
7. 7Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Sea Ice Physics, Bremerhaven, Germany
8. 8HGF-MPG Group for Deep Sea Ecology and Technology, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
9. 9Department of Marine Ecology, Institute of Oceanology, Polish Academy of Sciences, Sopot, Poland