HR: 1340h
AN: B13A-0211    [Abstracts]
TI: A new InterRidge Working Group : Biogeochemical Interactions at Deep-sea Vents
AU: * Le Bris, N
EM: nlebris@ifremer.fr
AF: Departement Environnement Profond, Ifremer, BP70, Plouzane, F-29280 France
AU: Boetius, A
EM: aboetius@mpi-bremen.de
AF: Microbial habitat group, Max Planck Institute f�r Marine Mikrobiologie, Celsiusstr. 1, Bremen, D-28359 Germany
AU: Tivey, M K
EM: mktivey@whoi.edu
AF: Dept of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Mailstop: 24, Woods Hole, MA 02543 United States
AU: Luther, G W
EM: luther@udel.edu
AF: Department of Chemistry and Biochemistry, University of Delaware College of Marine Studies, Department of Chemistry and Biochemistry, University of Delaware College of Marine Studies 700 Pilottown Rd., Lewes, DE 19958 United States
AU: German, C R
EM: cge@soc.soton.ac.uk
AF: Hydrothermal Processes Group, Southampton Oceanography Centre, Empress Dock, Southampton, SO14 3ZH United Kingdom
AU: Wenzhoefer, F
EM: fwenzhoe@mpi-bremen.de
AF: Microbial habitat group, Max Planck Institute f�r Marine Mikrobiologie, Celsiusstr. 1, Bremen, D-28359 Germany
AU: Charlou, J
EM: charlou@ifremer.fr
AF: Departement Geosciences Marines, Ifremer, BP 70, Plouzane, F-29280 France
AU: Seyfried, W E
EM: wes@umn.edu
AF: Department of Geology and Geophysics, University of Minnesota, 104C Pillsbury Hall, Minneapolis, MN 55455-0219 United States
AU: Fortin, D
EM: dfortin@uottawa.ca
AF: Department of Earth Sciences, University of Ottawa, 140 Louis Pasteur, Ottawa, ON K1N6N5 Canada
AU: Ferris, G
EM: grant.ferris@utoronto.ca
AF: Department of Geology, University of Toronto, 22 Russell Street, Toronto, ON M5S 3B1 Canada
AU: Takai, K
EM: kent@jamstec.go.jp
AF: Japan Agency for Marine-Earth Science & Technology, 2-15 Natsushima-cho, Yokosuka, 237-0061 Japan
AU: Baross, J A
EM: jbaross@u.washington.edu
AF: School of Oceanography, University of Washington, Box 357940, Seattle, WA 98195 United States
AB: A new Working Group on `Biogeochemical Interactions at deep-sea vents' has been created at the initiative of the InterRidge programme. This interdisciplinary group comprises experts in chemistry, geochemistry, biogeochemistry, and microbial ecology addressing questions of biogeochemical interactions in different MOR and BAB environments. The past decade has raised major issues concerning the interactions between biotic and abiotic compartments of deep-sea hydrothermal environments and the role they play in the microbial turnover of C, S, N, Fe, fluxes from the geosphere to hydrosphere, the formation of biominerals, the functioning of vent ecosystems and life in extreme environments, the deep-biosphere, and the origin of life. Recent multidisciplinary studies have provided some new insights to these issues. Results of some of these studies will be presented here. They point out the variability and complexity of geobiological systems at vents in space and time and highlight the need for interactions across the fields of chemistry, geochemistry, biogeochemistry, and microbial ecology of hydrothermal environments. Limitation for advances in these fields include the availability of seafloor observation/experimentation time, and of underwater instrumentation allowing quantitative, in situ measurements of chemical and biological fluxes, as well as physical and chemical sensing and sampling along small scale gradients and repeated observation of study sites. The aim of this new Working Group is to strengthen the scientific exchange among chemists, geochemists, biogeochemists and microbial ecologists to favor collaboration in field studies including intercomparison of methods and planning of integrated experiments. The Biogeochemical Interactions working group will also foster development of underwater instrumentation for in situ biogeochemical measurements and microscale sampling, and promote exchange and collaboration with students and scientists of neighboring disciplines, particularly with vent biologists, ecologists and geologists .
DE: 4825 Geochemistry
DE: 4832 Hydrothermal systems
DE: 3035 Midocean ridge processes
DE: 1094 Instruments and techniques
DE: 1615 Biogeochemical processes (4805)
SC: Biogeosciences [B]
MN: 2004 AGU Fall Meeting