e-book
Impacts of the Fukushima Nuclear Accident on Fish and Fishing Grounds
On March 11, 2011, the most disastrous earthquake and tsunami in modern Japanese history occurred in northeast Japan. They caused a great calamity for the people and industries on the Pacifi c coast of the Tohoku region of Japan, one of the most important regions for Japanese fi sheries. The Fukushima Dai-ichi Nuclear Power Plant (FNPP) was covered by a 15-m-high tsunami, and the electric power supply to
its four nuclear reactors was severed, resulting in hydrogen explosions and the meltdown of the core. This accident caused the elevation of the level of anthropogenic radioactivity in the marine environment in the western North Pacifi c from atmospheric fallout and direct discharges of highly radioactive waters. Security of food safety of marine products is a great concern for the people in the world and especially for the people involved in the fi sheries industry.
The Fisheries Research Agency (FRA) has been conducting research and monitoring the radioactivity of fi sh and shellfi sh since the 1950s, when we were worried about the effect of nuclear arms tests in the ocean to marine environments and products. Because the FRA has enough experience and knowledge of research on the radioactivity of large quantities of specimens, we accepted the requests from the national government to analyze the radioactivity of marine products fi shed all over Japan and started to make a plan to monitor radioactivity of various marine products fi shed around Japan in cooperation
with local governmental institutes just after the accident.
This book describes the results of the research on the effect of radioactivity to ocean and coastal ecosystems and various marine and freshwater fi sh caused by the FNPP accident of the huge magnitude of radioactivity on the ecosystems around Japan. This is the fi rst report on the effect on the hydrosphere ecosystem from the point of view of marine ecology and fi sheries oceanography. A scientifi cally precise description of the distribution and variation of radioactive elements in the ecosystem
is presented in detail in this publication. Of course, this is the fi rst step in revealing the anthropological effect of radioactivity on the ecosystem, and we should continue the research. I trust that this book will contribute to overcoming the tragedy and enhance the culture of human beings in the world
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