autumn overturn
autumn turnover

Dictionary of ichthyology. 2009.

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  • autumn turnover — the mixing of the entire lake water mass in the autumn (or fall; presumably this is an English phenomenon see also fall overturn or turnover) …   Dictionary of ichthyology

  • fall overturn — mixing of waters in a lake caused by cooling of surface waters, convection currents and wind action. Presumably an American phenomenon (see also autumn overturn). Also called fall turnover …   Dictionary of ichthyology

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