Tropical fish swim above boulders covered with bacterial mats
September 20, 2005
At East Diamante volcano (195 m, 640 ft depth), tropical fish swim above boulders covered with bacterial mat, which indicates the presence of hydrothermal venting. These fish live in the reef community above and are about 15 cm long (6 in).
Submarine Ring of Fire 2004 - Mariana Arc: March 27 - April 18, 2004