Yikes! Some of these bleak details sound familiar, but this is the first time I am seeing them put together.
At some point I have been involved with a trout farming operation and came to know the local industry fairly well - silly me, I thought farming salmon looks somewhat similar, LOL! From your description, it doesn't sound like anyone would want to take a dip anywhere near a salmon farm, and that was the best part of my consulting for the trout breeder. The other nice part was the fish dished out in every size and form of aggregation
We wouldn't touch the wild stock... Different world, apparently.