Several companies – including Albacora, Maruha Nichiro, Dongwon, Bolton Group and Sajo – are key harvesters of tuna species threatened with extinction. An estimated 56% of the 30 largest tuna ...

How much should you worry about mercury in tuna and other seafood? Experts weigh in. Credit...Bobbi Lin for The New York Times Supported by By Erik Vance Erik Vance has reported on the fishing ...