I don't get it..
Why are people are for killing everything that interferes with their fishing
If you arn't confertable around these bears then just leave, also why keep going back to the same 1 km stretch of river if you have seen 9 bears there already in the last 2 days. It doesnt' make any sense to me
I guess a fish is more important to you than your own life (assuming these bears are as agressive as you make it out to be). They were there long before you were.
Maybe all the crap we are doing to the enviroment is the reason this is happeneing. Less fish every year, warmer temperatures every year, and expanding population are pushing all sort of animals out of their homes and probably making them more hungry. Don't worry, in 20 or so years we wont have any more fish left and you wont need to go into their space to get mauled.
Give your head a shake.