Notes on Vent Field Description:
location and depth approximate; Minami and Ohara (2014): "Japan Coast Guard conducted a high resolution bathymetric mapping of the knoll using survey vessel and autonomous underwater vehicle (AUV) and discovered hydrothermal plumes which are rising from the seafloor", "Temperature profile observation, which was conducted using expendable bathythermograph launched from S/V Takuyo, showed over 2 degrees temperature increase near the seafloor in the depression. This observation along with the presence of plumes indicate the presence of hydrothermal activity in the Daiichi-Amami Knoll."
Notes Relevant to Biology:
Year and How Discovered (if active, visual confirmation is listed first):
2013 multibeam echo sounder on S/V Takuyo and AUV Gondo
Discovery References (text):
Minami, H. and Ohara, Y. (2014) Bathymetric survey and discovery of hydrothermal plume in the Daiichi-Amami Knoll using autonomous underwater vehicle. Japan Geoscience Union Meeting 2014, abstract SCG67-P08.