This is a very interesting topic. I am having a 1 acre pond built that will be only about 10 feet deep, possibly a little more in small areas. I am concerned about problems with winter kill.
This may be a stupid question but if the cause of the winterkill is decreased DO and the biggest way to prevent a decrease in DO is to get light to the plants so that they can produce oxygen, why not place a light or lights in the pond under the ice? I realize this would require electricity but so does aeration (unless you're using a windmill) but unlike aeration it seems to me instead of supercooling the water a light would have the potential to also provide a small amount of heat so that there would be at least a small area for the fish that would have a more favorable tempurature for them which would decrease another stress upon them.
Like I said this may be a dumb question but I had to ask.
