Lukas Hüppe, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Polar Biological Oceanography, Bremerhaven, Germany, Dominik Bahlburg, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, Charlotte Helfrich-Förster, University of Würzburg, Neurobiology and Genetics, Würzburg, 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