Well..if you're looking for salmon...don't let the water color fool you. Consider "Clarity". Today, for example the "W" looked to be a bit on the brown side...but the clarity was 3-4 feet...plenty good for fish to see your stuff.
I'd use herring, or prawns, with a blade twirling above them....we're also seeing lots of fish hooked with them rotary flasher doo-dads.
The fish are there...you just need to get in front of one..that's all. If you're into burning some gas...motor upstream, and then troll downstream..you'll cover way more water.