The Safina Center

Coho salmon.Coho salmon.Photo taken by: Carl Safina

Some problems exist with this species' status or catch methods, or information is insufficient for evaluating. Tuna, Bigeye (Maguro) – Atlantic, Pole, Troll & Handline These 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, Bigeye Tuna have a medium abundance.

Fishing with pole and line, troll, or handline gear is highly selective, resulting in minimal catches of non-target species. However, in the Atlantic, Bigeye Tuna are caught along with depleted Yellowfin Tuna. These fishing methods cause little to no damage to bottom 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.