Astrid Hylén^1,2, Samuel Hermant^3,4, Tom Huysmans¹, Benjamin Van Heurck¹, Greet Lembregts¹, Silvia Hidalgo-Martinez¹, Filip J R Meysman⁵, Ulrike Braeckman^3,6 and Sebastiaan van de Velde^7,8, (1)Geobiology group, Department of Biology, University of Antwerp, Antwerp, Belgium, (2)Aix-Marseille Université, CNRS, IRD, INRAE, CEREGE, Aix-en-Provence, France, (3)Marine Biology, Dpt. of Biology, Ghent University, Ghent, Belgium, (4)Institute of Natural Sciences, Brussels, Belgium, (5)Geobiology, Department of Biology, University of Antwerp, Antwerp, Belgium, (6)Institute of Natural Sciences, MARECO, Brussels, Belgium, (7)Department of Marine Science, University of Otago, Dunedin, New Zealand, (8)Earth Sciences New Zealand, Wellington, New Zealand