Funding for this research was provided by:
Japan Society for the Promotion of Science (16J06585)
the Bio-logging Science Program of the University of Tokyo
the Cooperative Program of Atmosphere and Ocean Research Institute
the Tohoku Ecosystem-Associated Marine Science
National Geographic (Asia 45-16), Japan Science Technology Agency Core Research for Evolutional Science and Technology (JPMJCR1685)
Japan Society for the Promotion of Science and OP under the Japan-UK Research Cooperative Program
Article History
Received: 3 January 2018
Revised: 10 July 2018
Accepted: 17 July 2018
First Online: 30 July 2018
Compliance with ethical standards
: All procedures performed in this study involving animals were approved by the Animal Experimental Committee of the University of Tokyo and conducted in accordance with the Guidelines for the Care of Experimental Animals. This work was conducted with permission from the Ministry of the Environment and Agency for Cultural Affairs, Japan.