Species has a combination of problems such as overfishing, high bycatch, and poor management.
Tuna, Bigeye (Maguro) – Atlantic, Unassociated Purse SeineThese fish contain levels of mercury or PCBs that may pose a health risk to adults and children. Our source of information is  We also recommend that you check local advisories.

Bigeye Tuna are a large fish, growing to over 200 kg (440 lbs), and are found throughout the Atlantic, Pacific, and Indian Oceans. They grow reasonably fast, can release millions of eggs each year, and can live to 10 years. In the Atlantic Ocean, high fishing levels have depleted the Bigeye Tuna population.

Purse seines that target free schools of tuna and do not use fish aggregating devices (FADs) are called unassociated purse seines. The unassociated purse seine tuna fishery in the Atlantic catches depleted Yellowfin Tuna and occasionally endangered/threatened sea turtles. This fishing method does not contact bottom ocean habitats.

Full species report here.

This fish may have high levels of mercury that could pose a health risk to adults and children. More info here about mercury in tuna. Check out our mercury in seafood section.