Redox discontinuity Layer Chemocline- Oxygen consuming catabolic process from the sediment render the hypolimnion anaerobic. But the epilimnion is always in contact with atmospheric air and regularly mixed up by the air current.
This facilitates the aeration of the region and makes epilimnion aerobic. Thus, thermal stratification also leads to a gradient of redox potential and chemical parameters.
Since the redox potential and chemical parameters are quite different in the regions both above and below the thermocline, it is also called as redox discontinuity layer or chemocline.
