I appreciate all the replies. I had no intent of stiring any pot but yes a lakes population can be decimated by fishing..... I have eaten more than my share of wild fish over the years and have no problem with taking and eating fish. I am picky about what I eat. BG, crappy, yellow perch, walleye, speckled trout are all excellent.
I have personally never fly fished any rough fish and would be interested in targeting any of them. BG and Bass and some salties are the limits of my experience. I have never fished coldwater either. I am sure there a few small drum in one of the creeks that I fish once in a while but have never caught one on the fly.