The article does a much better job of explaining the science than I would hazard to do here.
But in short, it suggests that global warming could change the composition of the Arctic Ocean in significant ways, including stratification where seawater separates into various layers impeding the movement of things like nutrients.
Some research cited in the article suggests such potential changes could impede certain species from thriving, and that a fishing boom in such cases is far from a sure thing.
To read more, click here
Write to Eilís Quinn at eilis.quinn(at)cbc.ca