Life jackets and kill switches.
-when fishing or hunting inland from a boat(assuming you are in phone range, which at least in SELA i generally have found that i am), your cell phone is normally your best survival option in case of a bad outdoor emergency (wrecked or overturned boat, getting stranded). so keep it dry, in a ziplock or get a waterproof case or whatever. don't just put it in your pocket like normal. consider keeping an old cell phone in double-ziplocks in your boat so you can make an emergency call from it.
ETA: if you are hunting or fishing a lot outside of phone range, consider getting a VHF radio or an EPIRB. (i would consider this mandatory for offshore fishing).
-if fishing or hunting in cold weather from a boat, keep a change of clothes on board, preferably in a waterproof bag or in double large ziplocks. and ponchos. hypothermia and drowning kill hunters every year.
This post was edited on 5/21 at 2:23 pm