海産物を安心して生産できる水準（Seafood can be produced with confidence level）

東日本大震災の津波によって海底の土砂が巻き上げられた宮城県気仙沼市周辺の海域で、水質や生態系が回復していることが首都大東京や京都大などの現地調査で分かった。
　調査チームは「海産物を安心して生産できる水準で、消費者にも三陸の海の幸を安心して食べてもらいたい」と話している。２１日に仙台市で開かれる市民向けシンポジウムで報告する。
　首都大東京の横山准教授らは５～１０月、気仙沼市の漁師らで作る特定非営利活動法人「森は海の恋人」と共同で、同市沿岸の４地点で海の様子を調べた。
　その結果、５月に通常の４～１５倍だった濁り具合が、１０月には元の水準に戻った。５月に大量発生していた植物プランクトンも６月以降は収まった。海底の泥に含まれる金属類や油分も基準を下回った。
　潜水調査も実施し、５月の海底は泥に覆われ、魚もほとんどいなかった。７月、９月と時を経るごとに、リュウグウハゼ、アイナメなどの魚に加え、海藻も見られるようになった。自身も漁師の畠山・同法人副理事長は、「震災直後は漁業ができるのか心配していたが、貝も魚も取れるような結果で安心した」 と話している。自然の回復力は凄いですね。あとは、この震災を通して我々が何を考え行動していくのか問われるところですね。

In the waters around the winding Kesennuma Miyagi seafloor sediments of the eastern earthquake tsunami, field survey, such as found in Metropolitan Tokyo and Kyoto University to recover that water quality and ecosystems.

The research team "at a level that can produce seafood with confidence, I want to eat with confidence Sanriku seafood to consumers," he said. For citizens to report at the symposium to be held in Sendai on June 21.

Yokoyama, Associate Professor of Tokyo Metropolitan University in May to 10, a non-profit corporation made ​​by fishermen from Kesennuma Forest "lover of the sea" in collaboration with four points examined the coastal ocean in the city.

As a result, the weather was a factor of 4 to 15 turbidity, usually in May and in October returned to its original level. Since June, the phytoplankton were outbreaks subsided in May. Metals and oil well below the standards contained in the mud of the seabed.

Also conducted research submersible, ocean floor is covered with mud in May, the fish were few. July and September each over time, beauty goby, in addition to fish such as greenling, seaweed can be seen now. Corporate Vice President of herself as a fisherman Hatakeyama, "immediately after the earthquake, but was worried about how fishing can be, relieved at times resulted take fish," he said. Natural resilience is incredible. After that, I will probably be asked to do what we think and act through this earthquake.