He is also a Research Fellow with the Institute for Ethnomedicine in the United States. His study areas are management of marine ecosystems and evolutionary ecology. His current interests are the roles of marine ecosystems for outbreaks of ALS in Kii peninsula, Japan, and the mechanisms of the evolution of anisogamy using marine green algae and theoretical approaches. He holds a BS degree in biology from Yokohama City University and a Ph.D. in biology from Hokkaido University. He is a winner of the Ecological Research Award 2005.