micro,

JJ is right....you're not. Both resident and anadromous rainbows (steelhead) are classified as O. mykiss. They aren't salmon, either, just members of the same genus. Salmon and trout are layman's terms.

He's also right that resident rainbow offspring can migrate out and become steelhead, and steelhead offspring can remain where they are and become resident rainbows.
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She was standin' alone over by the juke box, like she'd something to sell.
I said "baby, what's the goin' price?" She told me to go to hell.

Bon Scott - Shot Down in Flames