How many of us have caught a trout and released it only to watch as it goes belly up and sinks or just floats away on the surface ? That's even a lip hooked fish !! I can't imagine that the herons are putting a dent in the trout population when its stocked with 800,000 fish annually. Not to mention the 4 fish limit imposed a few years back....leaves 1 fish per man in the lake instead of keeping 5 like you used to.