Here is a link That I got from ADF&G on the PWS subsistence crab fishery.
I pull up crab in port valdez all the time while shrimping. I got a big tanner(I think) a couple of days ago that was caught on the outside of my pot. Most of the time they are small and climb into the pot. It will be difficult to get out there in the winter I think to do any fishing for them, especially with the limit, 5 tanner a day and 3 king per season.
But something is better than nothing.