A fishery based in northeastern Japan has acquired the world's first certification for sustainable bluefin tuna fishing, according to the Marine Stewardship Council.The MSC's blue fish label certifies that Usufuku Honten Co. in Kesennuma, Miyagi Prefecture, takes full measures to ensure that the endangered bluefin tuna -- a popular fish for sushi and sashimi -- is sustainably sourced, the London-based body said in a statement released Thursday.The fishery operates in the eastern Atlantic Ocean, where the population of bluefin tuna has been recovering thanks to conservation efforts, accordin…READ FULL ARTICLE