This study deals with the tuna industry in the Philippines, which is among the world’s largest producers of tuna and tuna-like species. Centred around General Santos City, the “tuna capital of the Philippines”, the tuna boom was spurred by the arrival, in the mid-1970s, of Japanese traders looking for new supplies of sashimi-grade yellowfin tuna.
https://www.icsf.net/wp-content/uploads/2006/09/930.ICSF111.pdf