This article came to my attention via Aquavetmed.
It’s lucky in a way that this does not apply to our salmon farming because of two things:
1. Our salmon do not have fish lice (and we’d like to keep it that way);
2. We don’t have a ‘wild’ population of salmon that farmed fish can affect (since salmon [and trout and the like] aren’t natives of Australia).
Read more about the flesh eating lice here-
http://m.scotsman.com/news/environment/flesh-eating-lice-spread-by-fish-farms-kill-39-per-cent-of-wild-salmon-1-2616431