wind/wave action mixes, churns and erodes the bank the waves break on. depending on the ionics of the water and soild, clay can easily suspend. Like you mentioned, I doubt it is wind/wave or it would be a more common occurance.....I would almost bet it is brown algae and not mud at all. Maybe wild Bill will chime in with some info on southern winter climate brown species.

IF, repeat IF it is a brown algae, breaking a chain in it's life cycle needs will stop it, but "something" will replace it...nothing in a pond goes unutilzed for long.

Last edited by Rainman; 03/07/13 11:30 AM.