Yeah, but having seen 100+ lb blues that were caught from SoCal lakes, and personally caught flatheads to 45 lbs, I got to say they have run that fish up much bigger, much than 50 pounds.
What many people who don't pursue cats with determination do not understand about them is that they are apex predators as well as opportunistic feeders.
Yes they also scavenge, but it's been my experience that all fish scavenge when live bait is scarce.
Knowing they are predators helps to catch them more readily. I've repeatedly advised people that that idea that catfish eat rotten bait, which they will if they can't find something else, is just not optimum fishing technique. If you choose cut bait for catfish always use the freshest possible. if you use prepared bait (Stink Bait), fresh containers will catch fish much faster that last years container. Live bait is optimum so long as it's been injured so as to bleed to provide a scent trail.
I've caught catfish on crappie jigs, a seven pound channel while fishing with your light crappie rig will give you a thrill, on bass plugs, jigging spoons, and spinners.
if the noportunity presents itself they will try and eat anything that they can catch.