In all of my 60 years I don't ever remember the Ohio River being as clear as it presently is. While on the river yesterday (Markland Pool) we measured over 8 feet of visibility. While the obvious reason would be the drought and low, consistent water levels, we have had similar in the past, but again never in my recollection has it been "gin clear." Do things like zebra mussels factor in here, or am I missing more obvious factors?? Do you think that the crystal clear water conditions has helped or hurt the fishing conditions that we normally experience on the "Big O."