Over the past five years, fishermen in the disaster-struck regions of Miyagi and Iwate prefectures have revived their industry, steadily increasing the catch and shipment of oysters, seaweed and other local specialties.

But for the fishing industry in Fukushima Prefecture, the turnaround has been slow, and plagued by the impact of the nuclear disaster that caused massive amounts of radioactive water to flow to the Pacific Ocean.

"I think we are making some progress. The fishermen couldn't fish for more than a year (after 3/11)," said Yoshihisa Komatsu, deputy director of administration at the Fukushima Prefectural Federation of Fisheries Cooperative Associations. But the speed of the progress "is slow, as it's been already five years," he said.