Hola from Montana, the land of fishing and hunting. My hometown(Miles City, MT) has one of the largest fish hatcheries on earth, it's pretty cool really. Anywho, they stock a number of man made lakes in the area with different types of fishies, and there are VERY strict laws as to how many fish you can take per day here in montana. It takes a lot of trial and error, but it is possible to have sport and nature co-exist.
I urge anyone who feels at all strongly about this topic to review your states conservation laws on the topic, you might be surprised to find out just how lacking that they really are!!!
Good day...