Table 1.
Number of organisms under various temperature range, oxygen requirement, habitat and salinity conditions, where the number in the parentheses is the number of organisms for a specific combination of the temperature range condition and a condition of some other environmental factor.
| Condition | #Org | Habitat | Oxygen | Salinity |
|---|---|---|---|---|
| Psychrophilic | 14 | Aquatic(5) | Facultative(7) | Mesophilic(2) |
| Specialized(4) | Aerobic(3) | - | ||
| - | - | - | ||
| Mesophilic | 722 | Host-associated(284) | Facultative(282) | Non-halophilic(149) |
| Multiple(242) | Aerobic(244) | Mesophilic(10) | ||
| Aquatic(111) | Anaerobic(99) | Moderate halophilic(9) | ||
| Thermophilic | 57 | Specialized(36) | Anaerobic(26) | Non-halophilic(4) |
| Aquatic(10) | Aerobic(13) | Moderate halophilic(2) | ||
| Multiple(6) | Facultative(11) | Mesophilic(1) | ||
| Hyperthermophilic | 36 | Specialized(21) | Anaerobic(22) | Non-halophilic(3) |
| Aquatic(12) | Aerobic(8) | Moderate halophilic(3) | ||
| - | - | Mesophilic(2) | ||