Tokyo, 1st of March 2010 - Tuna at Tsukiji wholesale fish market, biggest fish market in the world. 4:30 a.m, a fresh tuna fish was just sold to a wholesaler. Between 20 and 30 tons of fresh tuna are sold every day at Tsukiji. Fresh tunas come from the coasts of Japan and are the most expensive species. On January 6 2010, a 223kg tuna was sold 16M Yen (570 euros/kg).