I'll start and then pass it off to Dave or Blair.
Clearly we're seeing some species that we wouldn't traditionally see in waters. We're seeing orcas, killer whales, moving into waters that we haven't seen them in for probably decades. That is obviously having some impact on other marine mammals and fisheries.
The Inuit don't really like orcas. They look at them as being a bit invasive. I guess that would be one way of looking at it. They don't like the meat, and they have impacts on narwhals and beluga and so on, so there are challenges with that.
Obviously there have been migrations of different species of fish.
Dave, maybe you'd like to speak to a little bit of that.
Our fishery surveys are giving us insights into some of this, but we're assuming that as we see different currents and different temperatures we'll see different migrations and increases or decreases in the resource.