how do i find a job on a fishing boat in alaska and is it a good idea?

im a 17 year old kid, and i have always wanted to work on a fishing noat in a alaska, would it be a good idea for me to go next year or wait till im 21 cuz i really need money, i come from a poor hard working family. and if there is ant websits i can vist let me know, i know its a dangerous job, i just need some money and i want to do something in my life.