About the Authors
- Kentaro Q. Sakamoto
- Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan
- Akinori Takahashi, Takashi Iwata
- Department of Polar Science, The Graduate University for Advanced Studies, National Institute of Polar Research, Tachikawa, Tokyo, Japan
- Philip N. Trathan
- British Antarctic Survey, Natural Environment Research Council, High Cross, Cambridge, United Kingdom
The authors have declared that no competing interests exist.
Conceived and designed the experiments: KQS AT PNT. Performed the experiments: KQS AT TI. Analyzed the data: KQS AT. Wrote the paper: AT PNT.