Factors in habitat preference in situ of sulfur-turfs growing in hot springs effluents: dissolved oxygen and current velocities

Field surveys of hot springs were carried out at four Spas. Observations were made on the temperature, pH, dissolved oxygen and sulfide concentrations, current velocities, and the habitats of three (A, B, C) types of sulfur-turfs. The B-type (rods) was not present, while the A-type (sausage-shaped bacteria) grew only in the streams. In contrast, the C-type (filamentous bacteria) inhabited only the pools of hot spring water.