1. Renard Centre of Marine GeologyGhent UniversityGhent Belgium
2. GEOMAR Helmholtz Centre for Ocean Research Kiel, Department of Geology and Soil ScienceKiel Germany
3. Royal Netherlands Institute for Sea Research (NIOZ), Marine Biogeochemistry Division, DeepSea Monitoring GroupDen Burg Texel Netherlands
4. CAGE – Centre for Arctic Gas Hydrate, Environment and Climate, Department of Marine Geology and Chemical Oceanography (GCO)UiT The Arctic University of NorwayTromsø Norway