They go together because of the way the state is structured, (Alaska Native Claims Settlement Act ). Back in 1971 Uncle Sam transferred land titles to twelve Alaska Native regional corporations and over 200 local village corporations. Those corporations became rich (Arctic Slope Regional corp) or third world poor (Yukon-Kuskokwim Delta) depending on where they sat geographically.
What does this have to do with Pebble? Well, unlike many destitute regions of Alaska, Bristol Bay corporation sits in the middle of the largest salmon fishery in the world (this years harvest was over 37 million sockeye valued at $209 million.) That little factoid is what is at the root of many of the issues facing Pebble. In other words, if Bristol bay was a third world economy the mine would be seen in more favorable light.
The locals need money, they have no tangible ways to earn said money without doing some type of resource extraction. In my opinion, the fishing INDUSTRY is what is driving the anti pebble campaign ,not the local Yupik dude. In other parts of Alaska the local population has been all over getting the resource out of the ground: North Slope Oil, RED DOG zinc, Donlan Gold etc, etc.
...and maybe the copper.