There's no reason the fish farms can't domesticate and raise Pacific salmon species like they are doing in Chile.  

Owners of the spill source need to pay for the cleanup, like all waste spills.

Finally, AK needs to repeal the prohibition on aquaculture for finfish so we can compete on an even basis with the rest of the world.  Start trading commercial permits for offshore space.  The more commercial nets we get out of the water, the better fishing will be for the rest of us.  Cheers -