Thank you.
We've talked about the biggest sources of this problem. You've mentioned ballast water from foreign ships and the international live trade. Are there any other main sources we should be aware of? What I was thinking when you were describing this is some kind of a hot-spots map that we should have. I know that in my time as city councillor—and I'm thinking of the police—we had the hot-spot areas identified. Is there anything like this that exists? Also, are there any other sources that need to be identified?