noun
- the lower layer of water in a thermally stratified lake, typically cooler and denser than the upper layers
Usage: limnology; plural form
Examples
- The hypolimnia of deep lakes often become depleted of oxygen during summer stratification.
- Scientists measured temperature differences between the epilimnion and hypolimnia.
- Fish populations in the hypolimnia may be affected by reduced oxygen levels.
- The hypolimnia remain relatively stable in temperature throughout the summer months.
- Nutrient cycling between hypolimnia and surface waters occurs during lake turnover.
- Research focused on the chemical composition of various lake hypolimnia.