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Korea has two type of fishing gears which are lonline fishery and purse seine fishery in the Indian Ocean. Korean tuna longline fishery in the Indian Ocean commenced in 1957. 7longline vessels were operated in 2011 and 2012, which were the lowest in number of vessels during previous 5 years. With this fishing capacity, Korean tuna longline fishery caught 1,848mt in 2012, which was 21% higher than that of 2011. The fishing efforts in 2012 were4,290 thousand hooks and distributed higher in the western and eastern areas around 20°S-40°S, while the fishing efforts averaged for 5 recent years (2007-2011) were 7 million hooks and distributed in the tropical areas around 20°N-20°S as well as in the western and eastern areas around 20°S-40°S. It was noted that fishing efforts had not been deployed in the western Indian Ocean around 20°N-20°S in recent years. As results, the catch of bigeye tuna and yellowfin tuna significantly decreased, and albacore tuna became important in catch. Korean tuna purse seine fishery in the Indian Ocean commenced in 2012 and recorded about 29 hundreds mt in catch. 3 purse seine vessels have operated to fish skipjack tuna and yellowfin tuna in the western and central tropical areas around 5°N-10°S. The fishing efforts in 2012 were 145 sets, which mainly distributed in the tropical areas around 50°E-70°E. In 2012, 3 scientific observers were dispatched on board for implementing observer program and scientific data collection, which carried out 6.2% of observer coverage in terms of the number of hooks.
