The Albacore tuna caught by the U.S. troll & pole fleet are migratory warm water fish. They journey widely across the Northern Pacific Ocean following patterns of warm water and feed. Ten years of tagging data show that these fish do not come anywhere close to the cold waters of Japan at this time of year and it is believed that these albacore tuna stocks are currently many hundreds if not thousands of miles away from Japan at this time.

The area where contaminated water was discharged into the sea is along the Japanese shoreline and that water has not transited far off-shore. The leak has been capped and most of the elements that escaped are low weight isotopes with very short half-lives that are not expected to linger in the environment.

This diminishing radioactivity will likely dilute to undetectable levels along the Japanese coast and the migratory off-shore albacore tuna are expected to be completely unaffected by this event.