The main shipping route into ports like Rupert and Vancouver are crucial to the economy of Canada, and you need to identify them and almost protect them. They could go hand in hand with marine protected areas. If you neglect them and you blanket marine protected areas over specific areas, then you can end up with situations where different interests could hamper the economic growth and the movement of trade in Canada.
On June 6th, 2017. See this statement in context.