bluefin tuna

From great white sharks around Quebec's Îles-de-la-Madeleine to lobsters conquering new territory, oceanographers say the warming of the Gulf of St. Lawrence is having an impact on the creatures that live in its unique ecosystem.

Warming seas and dwindling sea ice are bringing new species to Arctic waters, a potentially irreversible tipping point for the ecosystem.

Members of the International Commission for the Conservation of Atlantic Tunas, which is made up of the 53 countries that fish in the Atlantic Ocean, held their annual meeting in Portugal this week to discuss measures to protect tuna, sharks, swordfish and other species.

This is why we can't have nice things.

A tuna buyer in Prince Edward Island has opened Canada's first federally licensed plant to process bluefin tuna for the world sushi market.