Cathrin Wittig¹, Katrin Wagner², Rebecca K James^3,4, Philip Ley⁵, Mikhail Kononets^6,7, Winter Bui⁸, Jake Reardon⁹, John Paul Balmonte¹⁰, Per O J Hall¹¹, Astrid Hylén¹², Silvia Hidalgo-Martinez¹², Christian März¹³, Piet Reyniers¹⁴, Lotte Verweider¹⁴, Ulrike Braeckman^15,16 and Sebastiaan van de Velde^17,18, (1)Ghent University, Marine Biology Research Group, Department of Biology, Ghent, Belgium, (2)University Bonn, Institute of Geosciences, Environmental Geology Research Group, Bonn, Germany, (3)University of Southern Denmark, Odense M, Denmark, (4)Université Libre de Bruxelles, BGeoSys, Department Geosciences, Society and Environment, Brussels, Belgium, (5)University of Antwerp, Department of Biology, Antwerp, Belgium, (6)Institute of Natural Sciences, Operational Directorate Natural Environment, Brussels, Belgium, (7)Research consultant, Gothenburg, Sweden, (8)Université Libre the Bruxelles, Department Geosciences, Society and Environment, Brussels, Belgium, (9)University of Southern Denmark, External Relations Team, Odense, Denmark, (10)Lehigh University, Department of Earth & Environmental Sciences, Bethlehem, United States, (11)University of Gothenburg, Department of Marine Sciences, Gothenburg, Sweden, (12)Geobiology group, Department of Biology, University of Antwerp, Antwerp, Belgium, (13)University of Bonn, Institute of Geosciences, Environmental Geology Research Group, Bonn, Germany, (14)Ghent University, Department of Geology, Ghent, Belgium, (15)Institute of Natural Sciences, MARECO, Brussels, Belgium, (16)Marine Biology, Dpt. of Biology, Ghent University, Ghent, Belgium, (17)Department of Marine Science, University of Otago, Dunedin, New Zealand, (18)Earth Sciences New Zealand, Wellington, New Zealand