AQUACULTURE in Japan

In this picture taken on January 30, 2018, chief operating officer of FRD Japan, Tetsuro Sogo measures the dissolved oxygen in a tank of grey salmon at the company’s test facility in Saitama. Japan may be an island nation surrounded by the bounty of the sea, but businessman Tetsuro Sogo is looking inland to raise one of the country’s most loved sushi fish: salmon. / AFP PHOTO