Hook question

I think the answer is yes but not to sure. So lets say i have a salmon and wanted to try for rock fish, do i still need to use a circle hook? If anybody does use swimbait after how does that work?

Yes, unless you're trolling.  But still has to be barbless.

Pretty sure once you have salmon on the boat you have to fish by salmon rules until you finish.

Thank you thats what i thought