I'm a governor fan for any woods carry. Remember, a bears neurologic pain is felt immediately in the head/nose area.....but is a non starter in the torso. I feel more comfortable turning any bear inside 10' with #6 shot than thinking you will stop being mauled or killed with a 44 or 454 to the breadbasket. The chances of hitting the head/nose/eyes with a single shot bullet inside 10' are slim to none and you are toast.
Good luck on the fishing. Should be fun.