It depends on the river. For instance the McKenzie has "wild" fish, but they're not really. They were all introduced. So they now allow the retention of non clipped steelhead. In which case, yes, I will take it home because the river is over run with steelhead, not endangered at all. And they have special coho regs in effect on a couple lakes and rivers, and in that case, I take a few too. The only chinook I got this year was a non clipped fish, but was it a native? probably not, and the regs allow the retention of one a day, and after numerous weekends of being skunked, you bet that fish went home, and it was the only one.
But yeah it just all depends.