Scenes from the Tuna Trade

Solid Gold
A fisherman unloads a sashimi-grade yellowfin tuna from a small boat at the General Santos Fish Port Complex on Mindinao island in the southern Philippines on Aug. 11, 2009. Hand-line fishermen in General Santos bring in some of the best quality — and most expensive — tuna that goes on sale in the large fresh tuna market here.

• The Hunt for Tuna: A Tough Catch