This year’s most expensive tuna sold at 7,360,000 JPY or roughly $70,325 US dollars. The tuna weighed about 230 kg. The price per kilogram was about 32,000 JPY or roughly $305 US dollars. The tuna came from Ohma in Aomori prefecture. The tuna was bought by the sushi chain, Sushi Zanmai. Sushi Zanmai has bought…