SCOR Working Group 135

Hydrothermal Energy Transfer and its Impact on the Ocean Carbon Cycles

See also, SCOR Ocean Carbon Working Groups.

Nadine Le Bris (France) and Chris German (USA)
Other Full Members
Wolfgang Bach (Germany), Loka Bharathi (India), Nicole Dubilier (Germany), Katrina Edwards (USA), Peter R. Girguis (USA), Xiqiu Han (China-Beijing), Louis Legendre (France), Ken Takai (Japan)
Associate Members
Philip Boyd (New Zealand), Thorsten Dittmar (Germany), Françoise Gaill (France), Toshitaka Gamo (Japan), Julie Huber (USA), Bob Lowell (USA), George W. Luther III (USA), Tom McCollom (USA), Silvia Sander (New Zealand), William E. Seyfried, Jr. (USA), Stefan Sievert (USA), Andreas Thurnherr (USA), and Margaret K. Tivey (USA)
Denise Smythe-Wright
Terms of Reference
  1. Synthesize current knowledge of chemical substrates, mechanisms and rates of chemosynthetic carbon fixation at hydrothermal systems as well as the transfer of phytoplankton-limiting micronutrients from these systems to the open ocean.

  2. Integrate these findings into conceptual models of energy transfer and carbon cycling through hydrothermal systems which would lead to quantification of primary production in view of a future assessment of the contribution of these systems to the global-ocean carbon cycle.

  3. Identify critical gaps in current knowledge and proposing a strategy for future field, laboratory, experimental and/or theoretical studies to bridge these gaps and better constrain the impact of deep-sea hydrothermal systems on ocean carbon cycles.

October 2008
Financial Sponsors
NSF, SCOR, InterRidge
  1. 23-24 November 2009 in Woods Hole, Massachusetts, USA

  2. 10-11 October 2011 in Hangzhou, China

  3. 29 April, 2 May 2014 in Vienna, Austria

Group Website
  • German, C.R., L.L Legendre, S.G. Sander, N. Niquil, G.W. Luther, L. Bharati, X. Han, and N. Le Bris. 2015. Hydrothermal Fe cycling and deep ocean organic carbon scavenging: Model-based evidence for significant POC supply to seafloor sediments. Earth and Planetary Science Letters 419:143–153.
  • Le Bris, N., M. Yücel, A. Das, S.M. Sievert, P.P LokaBharathi, and P.R. Girguis. 2019. Hydrothermal energy transfer and organic carbon production at the deep seafloor. Front. Mar. Sci., 18 January 2019,