As a professional angler, though not full time, I find it difficult to harm, kill or eat that which helps put food on the table. I can't tell you how long it has been since I put a bass to the knife that eventually ended up on my plate. It's been years. I just can't bring myself to destroy something that I earn part of my living on. But, lookout crappie, trout and white bass!
Preservation and conservation has been a tool of outdoorsmen and women for many years.