Is Kentucky Lake getting clearer every year? Are there weeds growing in the lake under the water. Submergent vegetation. If so what type of weeds and how deep are they found?

Also read that zebra mussles are taking over the lake and filtering the water thus making the lake clearer. hummm. Must be a lot of those little buggers to filter that much water. Can anyone confirm the zebra mussels being responsible for the improved water clarity?