Since the tsunami in March 2011 the only fishing that still takes place in the waters off Fukushima is for contamination research, and is carried out by small-scale fishermen contracted by the government. All other fishing is banned.

Testing Fukushima's Fish

A fisherman stands on his boat in Hisanohama port in Iwaki, about 30 km (19 miles) south of the Fukushima Daiichi nuclear power plant, Fukushima prefecture. ISSEI KATO/REUTERS

Testing Fukushima's Fish

80-year-old fisherman Shohei Yaoita walks through Hisanohama port in Iwaki, about 30 km (19 miles) south of the Fukushima Daiichi nuclear power plant, Fukushima prefecture. ISSEI KATO/REUTERS

Testing Fukushima's Fish

80-year-old fisherman Shohei Yaoita stands aboard his boat Shoei Maru, about 30 km (19 miles) south of Fukushima Daiichi nuclear power plant, Fukushima prefecture. ISSEI KATO/REUTERS

Testing Fukushima's Fish

A greenling is hauled aboad the Shoei Maru fishing boat, close to Hirono town, about 25 km (16 miles) south of Fukushima Daiichi nuclear power plant, Fukushima prefecture. ISSEI KATO/REUTERS

Testing Fukushima's Fish

A crab is hauled aboard the Shoei Maru fishing boat, close to Hirono town, about 25 km (19 miles) south of Fukushima Daiichi nuclear power plant, Fukushima prefecture. ISSEI KATO/REUTERS

Testing Fukushima's Fish

71-year-old Tatsuo Niitsuma holds greenling aboard the Shoei Maru fishing boat, close to Hirono town, about 25 km (16 miles) south of Fukushima Daiichi nuclear power plant, Fukushima prefecture. ISSEI KATO/REUTERS

Testing Fukushima's Fish

Fishermen sail, as they take part in a census of fish close to the Fukushima Daiichi nuclear power plant, in Hisanohama port in Iwaki, Fukushima prefecture. ISSEI KATO/REUTERS

Testing Fukushima's Fish

61-year-old captain Shigeru Katayose and his boat crew are seen as they prepare to take part in a census of fish close to the Fukushima Daiichi nuclear power plant, in Hisanohama port in Iwaki, Fukushima prefecture. ISSEI KATO/REUTERS

Testing Fukushima's Fish

A boat destroyed by the March 11, 2011 tsunami and earthquake lies in Yotsukura port in Iwaki, about 40 km (25 miles) south of the tsunami-crippled Fukushima Daiichi nuclear power plant, Fukushima prefecture. ISSEI KATO/REUTERS

Testing Fukushima's Fish

Local residents pray at a shrine for victims of the March 11, 2011 tsunami and earthquake in Iwaki, about 30 km (19 miles) south of the tsunami-crippled Fukushima Daiichi nuclear power plant, Fukushima prefecture. ISSEI KATO/REUTERS

Testing Fukushima's Fish

Fishermen remove crabs from nets, after fishing in waters close to the Fukushima Daiichi nuclear power plant, in Iwaki, Fukushima prefecture. ISSEI KATO/REUTERS

Testing Fukushima's Fish

80-year-old fisherman Shohei Yaoita removes a crab from a fishing net, after fishing in waters close to the Fukushima Daiichi nuclear power plant, in Iwaki in Fukushima prefecture. ISSEI KATO/REUTERS

Testing Fukushima's Fish

Flatfish, stonefish, flounder, greenling and ray caught by the Shoei Maru fishing boat lie in boxes in Iwaki, Fukushima prefecture. ISSEI KATO/REUTERS

Testing Fukushima's Fish

A laboratory technician is seen through a closed door at Fukushima Agricultural Technology Centre in Koriyama, Fukushima prefecture. ISSEI KATO/REUTERS

Testing Fukushima's Fish

Laboratory technicians chop fish, which was caught close to the tsunami-crippled Fukushima Daiichi nuclear plant, while preparing it for cesium testing at Fukushima Agricultural Technology Centre in Koriyama, Fukushima prefecture. ISSEI KATO/REUTERS

Testing Fukushima's Fish

A laboratory technician chops an anchovy, preparing it for cesium testing at Fukushima Agricultural Technology Centre in Koriyama, Fukushima prefecture. ISSEI KATO/REUTERS

Testing Fukushima's Fish

A laboratory technician puts chopped fish into a plastic container while preparing it for cesium testing at Fukushima Agricultural Technology Centre in Koriyama, Fukushima prefecture. ISSEI KATO/REUTERS

Testing Fukushima's Fish

Chopped greenling, which was caught close to the tsunami-crippled Fukushima Daiichi nuclear plant, sits in a plastic bag in preparation for cesium testing at Fukushima Agricultural Technology Centre in Koriyama, Fukushima prefecture. ISSEI KATO/REUTERS

Testing Fukushima's Fish

A laboratory technician uses a Geiger counter to measure radiation in fish at Fukushima Agricultural Technology Centre in Koriyama, Fukushima prefecture. ISSEI KATO/REUTERS

Testing Fukushima's Fish

A laboratory technician uses a Geiger counter to measure radiation levels in fish at the Fukushima Agricultural Technology Centre in Koriyama, Fukushima prefecture. ISSEI KATO/REUTERS

Testing Fukushima's Fish

Flatfish are seen aboard the Shoei Maru fishing boat, close to Hirono town, about 25 km (16 miles) south of Fukushima Daiichi nuclear power plant, Fukushima prefecture. ISSEI KATO/REUTERS

May 31, 2013