Hey Bill, thanks for posting this:
When fish farms raise catfish for spawning they often use head shape as one feature to sex the catfish.
Because of this thread, and particularly Bill's note, I did a little more searching. On
this site I found this note:
It is fairly easy to distinguish the sex of a channel catfish. Males usually have a broad muscular head that is wider than the body. A sexually mature male also has dark mottled gray splotches on the underside of the jaw and the abdomen. Female channel catfish have two vents, one to release urine and the other connected to the oviduct to release eggs.
We're never to old to learn something new.
Thanks all.
