Kiyoshi Kimura spends record $713,000 on single tuna at Japan's Tsukiji fish market

A deep-pocketed restaurateur shelled out nearly three-quarters of a million dollars for a single tuna fish at Japan's Tsukiji fish market today, smashing a previous record. The 269kg bluefin - caught off the coast of Japan's northern Aomori prefecture - stood at an eye-popping 56.49 million yen ($A712,991) when the hammer came down