Funding for this research was provided by:
Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research (PACES I+II (Topic 1 WP 6), AWI_PS82_03, AWI_PS96_02)
Deutsche Forschungsgemeinschaft (JA-1063/13,1-2, JA-1063/17-1)
Article History
Received: 21 June 2019
Revised: 8 December 2019
Accepted: 10 December 2019
First Online: 21 January 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.