The japanese threadfin bream, Nemipterus japonicus is one of demersal fishes of the Family Nemipteridae which has high economy value and commonly caught by bottom trawl. The distribution is widespread throughout the Indian Ocean and West Pacific. This species is commonly found in coastal waters, on muddy or sandy bottoms from 5 to 80 meters depth. Special characteristics of N. japonicus are having 11-12 pale golden-yellow stripes along the body from behind of the head to the base of caudal fin, a prominent red-suffused yellow blotch origin of lateral line and a yellow fillament on caudal fin. This species is carnivorous and has external reproductive system. The diet consists mainly of small fishes, molluscas, crustaceans (mainly crab or shrimp), polychaetes and enchinoderms.