The Rise and Possible Fall of the Philippines' Tuna Capital

More than 30 years after the accidental discovery of vast tuna resources within a stone’s throw of the shores of Sarangani Bay at the bottom tip of the Philippine island of Mindanao, tuna remains the lifeline of General Santos City, the region’s major port.

Tuna – especially the big mature yellowfin variety – has become a major component in the daily liv…