IRTI 2007 Agenda

**Back to Main Page for Biogeochemical interactions IRTI 2007 Meeting**

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Monday, Sept. 10 - Short courses/lectures

08:00 Registration and breakfast
9:30 Welcome and introduction (Jian Lin, Nadine Le Bris)
10:00 Composition and variability of hydrothermal fluid sources (K. Von Damm, UNH)
11:00 Coffee Break
11:15 Diversity of chemolithoautotrophs associated with hot hydrothermal fluid chemistry (K. Takai, JAMSTEC)
12:15 Box Lunch
14:15 Geochemical modeling of fluid-seawater interactions (M. K. Tivey,WHOI)
15:15 Coffee Break
15:30 Minerals, fluids and microbes interactions (K. Edwards, USC)
16:30 Vent fauna habitats: chemical and biological controls (N. Le Bris, IFREMER)
17:30-18:00 Discussion & summary of the first day

Tuesday, Sept. 11 - Short courses/lectures

08:00 Breakfast
09:00 Insights on habitat chemistry from in situ voltammetry (G.W. Luther,UDEL)
10:00 Who is driving the system? Microbial sulfur metabolism and autotrophic
carbon-fixation at vents (S. Sievert WHOI)

11:00 Coffee Break
11:15 Chemosymbiosis: animal – microbe – environment interactions (N.Dubillier, MPIMM)
12:15 Box Lunch
14:15 Abiotic and biotic influences on colonization processes (L.Mullineaux, WHOI)
15:15 Coffee Break
15:30 Succession: ecological processes structuring vent communities over time (T. Shank, WHOI)
16:30 Discussion & summary of the second day

17:30-19:30 Poster presentation session and Buffet - Clark 509 - Main Campus

Wednesday, Sept. 12 - Introduction talks to the WGs & flash presentations

08:00 Breakfast
09:00 Large scale export of vent derived chemical elements (C. German, WHOI)
9:45 Geochemical diversity of hydrothermal systems: Thermodynamic constraints on biology (W. Bach, RCOM)
10:30 Strategies of adaptation to an extreme environment: the case of Alvinella pompejana (F. Pradillon, CNRS/JAMSTEC)
11:15 Coffee
11:30 Do all biogeochemical cycles work at elevated temperatures that exist at deep-sea hydrothermal vents ? (D. Prieur, UBO)
12:15 Box Lunch
13:15 Continuous long-term observation of vent ecosystems and biogeochemical interactions using NEPTUNE Canada (M. Best, U.Victoria)
14:00 Flash communications
- Shufen Ma - Using Voltammetric Au/Hg Microelectrodes for the In Situ Characterization of Habitat Chemistry at the East Lau Spreading Center
- Susan Lang - Organic Geochemistry of Lost City Hydrothermal Fluids
- Jillian Petersen - Hydrogen is an energy source for endosymbiotic bacteria of hydrothermal vent mussels
- Clara Chan - Organic-mineral stalk formation by the marine iron-oxidizing bacterium Mariprofundus ferrooxydans
- Greg Dick - Microbial Biogeochemistry of the Guaymas Basin Hydrothermal Plume
- Melitza Crespo-Medina - Isolation and partial characterization of aerobic chemosynthetic thiosulfate oxidizing bacteria from diffuse flow hydrothermal vents from the East Pacific Rise
15:15 Coffee Break
15:30 Flash communications
- Sarah Bennett - Deep-sea hydrothermal plumes: an important source of stabilised dissolved iron to the oceans
- Yuichiro Ueno - Quadruple sulfur isotope analysis (32S/33S/34S/36S) of the deep-sea Iheya North hydrothermal field, mid Okinawa Trough back arc basin
- Yohey Suzuki - Diverse Endosymbiosis in Alvinochoncha Gastropods
16:00 Discussion
16:45 End of discussion

18:00 – 21:00 Dinner - Coonamessett Inn - Falmouth

Thursday, Sept. 13 - Working group discussions (Limited Audience)

08:00 Breakfast
09:00 Plenary session – WG presentation and objective of discussion
09:30 WG1, WG3 sessions start
11:00 Coffee Break
11.15 WG1, WG3 continue
12:15 Buffet Lunch
13:15 WG1, WG3 report back in plenary
14:30 WG2, WG4 sessions, WG3 continues
15:45 Coffee Break
16:00 WG5 starts, WG2, WG4 sessions continue
18:00 Day ends

Friday, Sept. 14 - Working group discussions and synthesis (Limited

08:00 Breakfast
09:00 WG5, WG2, WG4 continue
10:30 WGs report back in Plenary
11:15 Coffee Break
11:30 - 12:00 Wrap up of meeting

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