As far as I understand it, the only thing that causes a turnover is the surface water reaching 39 degrees. Whether than happens due to a cold snap, a cold rain or winter moving in it doesn't matter. It's the 39 degree surface water that sinks down to the bottom and turns things over. I will actually go out on a limb here and make a wild guess. I bet a really cold rain stands more of a chance to cause a turnover in a 10' deep pond than a 20' deep pond.
A deeper pond is more than likely going to have less vegetation than a shallow pond. Dying/decomposing vegetation sucks up O2 under the ice.
Deeper lake SHOULD be more resistant to temperature fluctuations.
I don't think you can always assume a deeper pond has MORE anoxic water. Each body of water is different.
EDIT: Bill Cody posted while I was typing. I defer to what he says!
Last edited by wbuffetjr; 11/30/19 09:07 PM.
