Abstract
Living (stained) benthic foraminifers were found on the surface of paddy field in Minamisoma City, Fukushima Prefecture, Northeast Japan, in September 2012. Because those foraminifers were sampled about 18 months later since the 2011 off the Pacific coast of Tohoku Earthquake (the Tohoku earthquake), those were not individuals transported by tsunami. They should be reproduced and grew in that paddy field. Foraminiferal tests in tsunami sediments have been used for estimating origin of those sediments, because it have been interpreted that those tests were transported by tsunami. Present finding, however, suggests that tsunami sediments sometimes contain foraminifers grown in new environment occurred by tsunami.
