Quote Originally Posted by Hardyreels View Post
I read all the replies, we have rainbow trout here & we have steelhead trout. Most of the fish have the white stripe on the pelvic and annal fins but not all. I catch sea runs that have it and some that don't. The white stripe on the rainbows is sorta like the blood red adipose fin on many wild brown trout. I always used it as an indicator of the fish either being stream bred or having been there since being stocked as a juvenile. I believe every one is correct and I especially enjoyed Bakerboy's levity
Good info there. I'd never heard of the blood red adipose indicator of wild brown trout so I went back to take a look see at some photos of what
I knew to be wild browns. Sure enough, lots of blood red markings on the adipose fin!