Notes on Vent Field Description:
located on Segment 16, CIR; Tamaki (2010): "The black smoker fluids in the Dodo field exhibit unusually high concentrations of H2 in spite of the slightly brine-enriched feature of the fluids."; Miyazaki et al. (2010): "10 to 15 active chimneys"; Nakamura et al. (2012): "The most vigorous black smoker discharges were observed at the Tsukushi-2 chimney site, at which the highest temperature of hydrothermal fluid (356 C) was sampled."; Kitazato et al. (2014) mentioned the cruise led by M. Nishizawa (JAMSTEC) in 2013 had one dive with Shinkai 6500 in the DODO field: "We found no signs of presently active hydrothermal fluid discharge in the DODO field, indicating that hydrothermal activity in the DODO field had stopped during the period from 2009 to 2012."
Notes Relevant to Biology:
Tamaki (2010): "Chemosynthetic faunal communities in the Dodo field are emaciated in size and composition."; Miyazaki et al. (2010): "We observed only crabs and shrimps but we did not found shells." Nakamura et al. (2012): "As far as we observed, no Alviniconcha gastropods, ‘scaly-foot’ gastropods or mussels were present".
Year and How Discovered (if active, visual confirmation is listed first):
2009 submersible Shinkai 6500; 2006 plume only
Discovery References (text):
Tamaki, K. (2010) Dodo Field and Solitaire Field: Newly Discovered Hydrothermal Fields at the Central Indian Ridge. AGU Fall Meeting abstract #OS21A-1468.
(plume only) Okamura et al. (2007) Discovery of hydrothermal plumes at the Rodriguez segment, Mid-Indian Ridge. Eos Trans. AGU, 88(52), Fall Meet. Suppl., Abstract V21B-0604.
(plume only) Kawagucci et al., 2008, Methane, manganese, and helium-3 in newly discovered hydrothermal plumes over the Central Indian Ridge, 18°-20°S, G3, 9, Q10002, doi:10.1029/2008GC002082.
(plume only) Tamaki and Ura (2008) Rodriguez Segment of the Central Indian Ridge: Hotspot-ridge interaction and hydrothermal activity. AGU Fall Meeting Abstract T43B-2010.
Other References (text):
German et al. (2001) Hydrothermal Activity Along the Central Indian Ridge: Ridges, Hotspots and Philately. American Geophysical Union, Fall Meeting 2001, abstract #OS42E-06.
Miyazaki, J. et al. (2010) Macrofaunal communites at newly discovered hydrothermal fields in Central Indian Ridge. AGU Fall Meeting abstract #OS33F-06.
Nakamura K, Watanabe H, Miyazaki J, Takai K, Kawagucci S, et al. (2012) Discovery of New Hydrothermal Activity and Chemosynthetic Fauna on the Central Indian Ridge at 18°–20°S. PLoS ONE 7(3): e32965. doi:10.1371/journal.pone.0032965.
Kitazato, H. et al. (2014) Summaries of HOV Shinkai 6500 diving expedition: QUELLE (Quest for Limit of Life) 2013 cruise. INDEEP Deep-Sea Life Newsletter 3, p. 24-27.