Our fast-moving international campaign to make tinned tuna sustainable took another big step forward this week as we began a push on Canada’s largest tinned tuna brand Clover Leaf. The company currently uses an extremely destructive fishing method – purse seining using Fish Aggregation Devices (FADs) – which catches other marine species like sharks, rays and turtles and tuna from stocks that are highly overfished, in addition to the target fish.