Supplementary material from "Fauna of the Kemp Caldera and its upper bathyal hydrothermal vents (South Sandwich Arc, Antarctica)" ...

• Main Authors: Linse, Katrin, Copley, Jonathan, Connelly, Douglas P., Larter, Robert D., Pearce, David A., Polunin, Nick V. C., Rogers, Alex D., Chen, Chong, Clarke, Andrew, Glover, Adrian G., Graham, Alastair G. C., Huvenne, Veerle A. I., Marsh, Leigh, Reid, William D. K., Roterman, C. Nicolai, Sweeting, Christopher J., Zwirglmaier, Katrin, Tyler, Paul A.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: The Royal Society 2019
• Subjects: Antarc*; Antarctica; Southern Ocean
• Online Access: https://dx.doi.org/10.6084/m9.figshare.c.4727093; https://rs.figshare.com/collections/Supplementary_material_from_Fauna_of_the_Kemp_Caldera_and_its_upper_bathyal_hydrothermal_vents_South_Sandwich_Arc_Antarctica_/4727093

Faunal assemblages at hydrothermal vents associated with island-arc volcanism are less well known than those at vents on mid-ocean ridges and back-arc spreading centres. This study characterizes chemosynthetic biotopes at active hydrothermal vents discovered at the Kemp Caldera in the South Sandwich Arc. The caldera hosts sulfur and anhydrite vent chimneys in 1375–1487 m depth, which emit sulfide-rich fluids with temperatures up to 212°C, and the microbial community of water samples in the buoyant plume rising from the vents was dominated by sulfur-oxidizing Gammaproteobacteria. A total of 12 macro- and megafaunal taxa depending on hydrothermal activity were collected in these biotopes, of which seven species were known from the East Scotia Ridge (ESR) vents and three species from vents outside the Southern Ocean. Faunal assemblages were dominated by large vesicomyid clams, actinostolid anemones, Sericosura sea spiders and lepetodrilid and cocculinid limpets, but several taxa abundant at nearby ESR ...