Oliver Müller, University of Bergen, Department of Biological Sciences, Bergen, Norway, Evgenii Salganik, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Department of Civil and Environmental Engineering, Bremerhaven, Germany, Rolf Gradinger, UiT The Arctic University of Norway, Department of Arctic and Marine Biology, Tromsø, Norway, Gunnar Bratbak, University of Bergen, Bergen, Norway, Clara Hoppe, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research, Marine Bioeociences, Bremerhaven, Germany, Aud Larsen, NORCE Climate and Environment, NORCE Research AS, Bergen, Norway, John Paul Balmonte, Lehigh University, Department of Earth & Environmental Sciences, Bethlehem, United States, Katja Metfies, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, Mats A Granskog, Norwegian Polar Institute, Tromsø, Norway and HAVOC (MOSAiC) science team