Japan's Dentsu dives into AI to grade tuna quality in Indonesia - Canned tuna giant Thai Union anchors growth hopes in pet food - Mercury content in tuna can be reduced with new packaging solution - Some Century-brand tuna recalled because of undeclared wheat - Motorbike-sized tuna sold to Tokyo sushi restaurateurs for $1.3m - Tuna weighing as much as a grizzly bear sells for $2.3 million in Japan - US tuna cans linked to reports of forced labour of Indonesian fishers: Greenpeace Southeast Asia report - Is the EU going to lower the levels of mercury allowed in tuna? - Only one of Australia's most popular tuna brands passes sustainability test, first-of-its-kind review finds - Meet the Star of Sushi-Con: A 400-Pound Tuna