MarVeL Workshop

Afternoon 1, Session 2: Focus on the Mariana vents – lithosphere-biosphere linkage

Session Chair: Stace Beaulieu

This session will start with geochemistry at Mariana vents. The second keynote talk will review the diversity of microbial mats at Mariana vents. After spotlight talks, the session concludes with a discussion of biodiversity and adaptations to Mariana vents - ‘who lives where, and why?’.

15:30 Diversity of vent fluid chemistry among hydrothermal activities at on- and off-axial sites of backarc spreading in southern Mariana Trough - Jun-ichiro Ishibashi

16:00 Extreme Biodiversity and Ecology of Microbial Mat Communities From Mariana Island Arc Hydrothermal Vents - Craig Moyer

16:30-16:50 Spotlight talks: Sayaka Mino (abstract); Richard Davis (abstract); Masako Nakamura (abstract); Frederic Sinniger (abstract)

16:50-17:10 Guided discussion on biodiversity and adaptations to geochemical habitats - Verena Tunnicliffe

Relevant articles:

Davis, R., and Moyer, C. (2008) Extreme spatial and temporal variability of hydrothermal microbial mat communities along the Mariana Island Arc and southern Mariana back-arc system. JGR 113, doi:10.1029/2007JB00541.

Huber, J., et al. (2010) Isolated communities of Epsilonproteobacteria in hydrothermal vent fluids of the Mariana Arc seamounts. FEMS Microbiology Ecology 73, 538–549.

Kato, S., et al. (2012) Iron-based microbial ecosystem on and below the seafloor: a case study of hydrothermal fields of the Southern Mariana Trough. Frontiers Microbio.

Limén, H., et al. (2006) Benthic community structure on two peaks of an erupting seamount: Northwest Rota-1 Volcano, Mariana Arc, western Pacific. Cahiers de Biologie Marine, 47: 457-464. (Attached below, requires log in)

Tunnicliffe, V. et al. (2009) Survival of mussels in extremely acidic waters on a submarine volcano. Nature Geoscience 2, 344-348, doi:10.1038/ngeo500.