About the Authors
- Katsufumi Sato, Nobuhiro Katsumata
- International Coastal Research Center, Ocean Research Institute, The University of Tokyo, Otsuchi, Iwate, Japan
- Kentaro Q. Sakamoto
- Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan
- Yutaka Watanuki
- Graduate School of Fisheries Sciences, Hokkaido University, Hakodate, Japan
- Akinori Takahashi
- National Institute of Polar Research, Itabashi, Tokyo, Japan
- Charles-André Bost, Henri Weimerskirch
- Centre d'Etudes Biologiques de Chizé-CNRS, Villier en Bois, Beauvoir/Niort, France
The authors have declared that no competing interests exist.
Conceived and designed the experiments: KS HW. Performed the experiments: KS YW AT NK CAB. Analyzed the data: KS KQS NK. Contributed reagents/materials/analysis tools: KS KQS. Wrote the paper: KS AT.