The key issue in the debate of Evolution is speciation. When the largemouth bass “adapt” and become catfish or something like that, give me a call.
It’s OK if they think they’re catfish, ya know....
That makes them transcatfish....
maybe the slower, more timid fish haven’t gotten caught at the rate of the wiley crazy fish, or some such nonsense,.
“Timid” and “Aggressive” genes existed in the bass and were not added due to mutation.
Indeed, as you said, it’s not “evolution” when the aggressive ones are caught and don’t pass on their traits. It’s an environmental “forcer” that allows the less aggressive bass to reproduce more.
It is a form of selection, albeit “unnatural”. But it’s not evidence of “evolution”.