Do you mean answer?
If so, the round goby is an invasive species because of the negative impact it has in the enviroment is it living in. A species is considered "invasive" because of the damages it is doing to the enviroment around it also the species may not even be native to that area.
Vancouver is about as far west as you can go in Canada. It would never serve as a link to the Great Lakes nor would it be an Atlantic Ocean Port. Try Halifax for that.
Saskatoon and Regina could probably use Vancouver as a link; probably wheat and grains would be shipped to the Orient through Vancouver. But Regina and Saskatoon are in the mid west.
The best answer is A Pacific Ocean Port. It is almost right on the Pacific.
Snow, white and reflective.