The short answer, Mr. Bigras, is I don't know, but I'm sure Transport Canada and the Department of Fisheries and Oceans would know.
What you've just added to the table, sir, is another element to a possible hearing with those two departments, looking at aquatic invasives.
I had thought, initially, that the fact they're coming in faster than DFO can deal with them and getting to the bottom of why that's so with DFO would be a good hearing. Certainly, Transport Canada should be at the table in any such hearing, because they're responsible for ship ballast water.
But what you've just added is yet another dimension to this, which is a very good one, and that is, what kind of work has been done to get a sense of the environmental impact of all of this. And I don't know, but I'm sure these two departments could tell you.