It is mystifying how Industrial tuna can present itself as sustainable. Big industry tuna companies are creating new labels and logos and paying big dollars to be a major player in the sustainable canned albacore market. Longlining has been a serious threat to the oceans because of the bycatch.
Longlining Quote by WWF
According to the United Nations, longline fishing has one of the highest bycatch rates of any gear used to fish for tuna. The average bycatch rate is more than a quarter (28%) of the total catch. In the Pacific Ocean, for instance, millions of baited hooks are set each year on longlines in order to catch tuna and other fish that swim deeper like swordfish and mahi mahi. However, sharks, marine turtles, billfish, seabirds, dolphins, juvenile fish and other fish species also get hooked. The bycatch problem is perhaps most sensitive for marine turtles, especially the critically endangered Pacific leatherback turtles.
This is a picture of trolling for albacore.
This is how the St. Jude catches its albacore.
TunaTuna 
