Thanks for the question.
In terms of aquatic invasive species, what we've seen historically is that with our colder climate, we've been able to keep various species at bay. Their climactic tolerances haven't been able to withstand our colder temperatures. With climate change, we're seeing species being able to overwinter, which we did not see historically.
We were hoping for a cold winter to potentially eradicate a new species discovered for the first time in North America, in Ontario. It is the marbled crayfish, which is a species first discovered in Germany. It reproduces asexually. They will have a devastating impact on our native crayfish species and fresh fisheries, as well as many other impacts.