Cyanobacteria in Geothermal Habitats

3.2 Distribution of Thermophilic Cyanobacteria Based on Morphology and Cultivation ...................... 40 3.2.1 Geographic Distribution ................................................. 40 3.2.2 Distributions Determined by Temperature and Chemistry ................................................................ 44 3.2.2.1 Temperature ................................................................... 44 3.2.2.2 pH ................................................................................... 44 3.2.2.3 Nitrogen and Phosphorus Availability ........................... 44 3.2.2.4 Sulphide Tolerance and Utilization ................................ 44 3.2.2.5 Salinity ........................................................................... 44 3.2.3 Well-Studied Mat Systems ............................................. 45 3.2.3.1 Hunter’s Hot Springs, Oregon ........................................ 45 3.2.3.2 Mushroom Spring and Octopus Spring, Yellowstone National Park ............................................. 46 3.2.3.3 White Creek ................................................................... 47