This is to the second part of your question. There has been a lot of work that's gone in over the past 30 years in Atlantic Canada into trying to mitigate the impacts of salmon farms. We've seen mitigation measures to try to capture nutrients. So far they've been, in effect, unsuccessful, and we still see toxic sulphide levels, as Inka was showing, under farms that are trying to use these mitigation measures.
As I mentioned, there are a number of efforts for non-chemical controls of sea lice, but it's recognized by industry that those aren't going to be able to work alone. So they plan to continue using pesticides, and indeed they are arguing that they're going to need a broader suite of pesticides, some of which—like the one I mentioned, deltamethrin—are incredibly toxic.
There has been a lot of work in mitigating and trying to fix open-net pen salmon aquaculture. But the problems with it—the waste stream not being managed and having no biosecurity—are such big problems that it's not something we've been able to mitigate away. And I don't think there is any reason to expect we will be able to in the future.