Svenja Mueller, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany, Bremerhaven, Germany; Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany, Bremerhaven, Germany, Evgeny A. Pakhomov, Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, BC, Canada, Vancouver, Canada; Institute for the Oceans and Fisheries, University of British Columbia, Vancouver, BC, Canada., Vancouver, Canada, Kathrin Schierge, Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany, Oldenburg, Germany, Morten H. Iversen, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Polar Biological Oceanography, Bremerhaven, Germany; MARUM - University of Bremen, Bremen, Germany and Bettina Meyer, Alfred-Wegener-Institute for Polar and Marine Research, Bremerhaven, Germany; Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky University Oldenburg; Helmholtz Institute for Functional Marine Biodiversity, Oldenburg, Germany