Members of a fisheries cooperative in Naraha, Fukushima Prefecture, released young salmon into the Kido River on April 15 for the first time since the Great East Japan Earthquake and the ensuing Fukushima Daini nuclear power plant accident. Released were some 10,000 salmon fry hatched in the Natsui River in Iwaki. The Naraha town office intends to decide in mid-May when to allow evacuees to return. The Kido River Fisheries Cooperative hopes the release of salmon that return to their native streams for spawning will pave the way for evacuees to come back.
The Kido is one of the rivers that boast large numbers of returning salmon on Japan’s main island of Honshu. But all fishing weirs and hatcheries were swept away by the tsunami tide that followed the 2011 temblor. Cooperative head Hideo Matsumoto and other members released the young salmon, 3 to 4 cm long, into the river. Many return to their natal rivers four years later after migrating through the oceans such as the Okhotsk and Bering seas as well as the Gulf of Alaska.
The cooperative and town authorities are considering rebuilding hatcheries and resuming the egg collection/hauling business in fall next year in the hope of restarting the release of self-hatched young salmon in the spring of 2016. Naraha Mayor Yukihide Matsumoto, who joined the release, said the town hopes to launch the rebuilding of weirs this year, pledging to support the cooperative in a manner leading to the return of evacuees.