Funding for this research was provided by:
Japan Society for the Promotion of Science (18H01269, 20H01965)
National Institute of Polar Research (No. 26–31, No. 31–25, KP-307)
Ministry of Education, Culture, Sports, Science and Technology (the MEXT program for promoting the enhancement of research universities)
Article History
Received: 17 May 2021
Accepted: 29 September 2021
First Online: 18 October 2021
Declarations
:
: The authors declare that we have no competing interests.