Since the March 2011 nuclear crisis, fishery workers in Fukushima Prefecture have had the unprecedented and daunting task of convincing consumers that local fish are safe to eat.
Fishing has resumed on a "trial" basis and the catches are gradually increasing. But seven years on, radiation checks are now part of their routine before shipping the fish to markets.
Japan has a cuisine culture that is often synonymous with sushi overseas, and consumers value not just the safety but the freshness of seafood.