Department of Molecular Ecology, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, D-07745, Jena, Germany. wwalter@cnic.es.|Department of Arctic and Marine Biology, UiT The Arctic University of Norway, Naturfagbygget, Dramsvegen 201, 9037, Tromsø, Norway. bernd.ketelsen@uit.no.|Department of Molecular Ecology, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, D-07745, Jena, Germany. egaquerel@ice.mpg.de.|Department of Molecular Ecology, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, D-07745, Jena, Germany. baldwin@ice.mpg.de.|Department of Molecular Ecology, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, D-07745, Jena, Germany. skim@ice.mpg.de.|Department of Arctic and Marine Biology, UiT The Arctic University of Norway, Naturfagbygget, Dramsvegen 201, 9037, Tromsø, Norway. ines.heiland@uit.no.