I'll also confirm what Cecil said about high winds turning up sediment particles in a pond but also the temperature of the rains. Last week we has a few storms come through with some outrageously high sustained winds and very cold showers.
It had rained alot the previous week and no change was seen in water clarity, other than a few inches. The bloom kept coming back, even after a few days of rain.
Anyways last week, with the storms coming through, the outdoor temperature alone dropped down to 59 and 57 during the showers from highs in the day up to mid 80s. Keep in mind I'm in the deep south, its practically almost summertime, and yet you could see the heat from the pond misting up through the much colder air. The pond not being in any protective area anyways is always moving due to any amount of wind, but after these, the pond turned brown. Its almost a 30 year old pond, however mostly drained in 2002 to rotenone and restock. There is no erosion or silt to wash in from anywhere, and due to the fact that the rains were less that the previous week.
I believe my newly suspended particles were due to the high winds mostly, but possibly as well due to much colder waters from the rains (low to mid 50s) that infiltrated the pond that was at a water temperature of approximately 80 - 85.
Its been over a week and its all still suspended, I don't believe it was a plankton die off as the bloom is still visibly growing on the surface in places. Perhaps the cold water did cause some of it to die off. All I know is that it has been a stressful week coming to this conclusion.
