What is resident rainbow in a anadronymous waterway then? A rainbow
that could go out to ocean but doesnt?



Actually, it's a steelhead that could go out to ocean but doesn't


Sounds like a country-mouse/city-mouse kinda thing. Or maybe that old
Gloria Steinham adage that "all men are potential rapists". All
rainbows are potential steelhead.

--riverman
(somewhere in there, this is germaine...)