James57, it is a 2 day limit, so 4 coho per day, means you can have 8 in possession per person, remember though that if you have caught some springs your limit is still 8 salmon per person of which only 2 springs per day or 4 on possession apply means you could only have 4 coho.
Thank you very much for helping clarify that. Hitting a possession limit is not a "problem" I've had in the past, but I'm thinking optimistically this trip!