_:b1216281 "Wikipedia:Lake#Types_of_lakes"^^ . _:b1216281 . _:b1216281 . _:b1216281 "A lake which has layers of water which do not intermix. The deepest layer of water in such a lake does not contain any dissolved oxygen. The layers of sediment at the bottom of a meromictic lake remain relatively undisturbed because there are no living organisms to stir them up."^^ . _:b1216281 .