I think Citori has it right on the farm raised steel head are triploids. I have eaten the farmed steel head and the trips out of Rufus Woods taste much the same only the trips fresh out of the lake taste better. I was at Safeway a few years back and guy behind the fish counter sold me on some wild sockeye. When I got it home and ready to cook, the fish had a tag hidden between the fish and the package saying it was caught by the tribe. Boycott Safeway fish from then on.