With regard to trawlers of more than 100 tons, in part because of the actual operation of longline fisheries and the fishing of tuna, sailfish and shark, the International Tuna Fisheries Organization considers this as IUU fishing(illegal, unregulated and unreported fishing). For the sake of the overall sectoral interests and management of ocean fisheries, those who actually engage in longline fisheries by trawling vessels of more than 100 tons shall, as soon as possible, adjust to engage in the