Holomictic lakes are lakes that have a uniform temperature and density from surface to bottom at a specific time during the year, which allows the lake waters to mix in the absence of stratification.
[1] Most lakes on Earth are holomictic; meromictic lakes are rare, although they may be less rare than commonly thought.
[2] Amictic lakes are sealed off by ice and never mix.
There are five types of holomictic lakes:[3]
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