Does anyone know how i can get a job in alaska on a fishing boat? crab or fish?

I'm 20 years old and have been wanting to go up to Alaska and get a job on a fishing boat since i was 15, i looked online a lot and just haven't had any luck, i just need to find someone that actually does it and then talk to them, im planning on next summer to drive up there from Montana and walk the docks or something, because i desperately want to go do it. If anyone has done it or knows someone that works up there please let me know. Thank you