nope you are correct, the top fish is a male, bottom fish is a female. I only know it's a male because it had a small kype (can't see it in that picture though because it's mouth is closed). Males also typically get darker colored then the females (hence the black-ish fins)
both salmon are wild/native. The salmon here have a very broad range of color variations. I think the color pattern variations depend on age class/maturity, how long they've been in the river, and life history/origin. Probably other environmental factors at play too.
Thanks for responding. Sounds right to me!
I wish my state would allow me to raise salmon. They would be a cool fish to produce in trophy sizes!