I believe that all trout will eat fry, if they are bigger than the fry. I've caught Rainbows, Cutts, etc with fry in their guts. Heck, I've caught a 15 lb summer steelie that had a smolt in its gut and another summer fish with its stomach so swollen with eggs it was almost as big as my(then) 16 yr old fist. I hate the thought of "wasting" legal or not any native gamefish.