Funding for this research was provided by:
Deutsche Forschungsgemeinschaft (Qu148/16)
FCT, Portugal (SFRH/BPD/88914/2012)
Text and Data Mining valid from 2017-09-01
Received: 27 April 2017
Accepted: 22 August 2017
First Online: 1 September 2017
Compliance with ethical standards
: We declare that we have no conflict of interest.
: This study was funded by the Deutsche Forschungsgemeinschaft (DFG) in the framework of the priority programme SPP1154 “Antarctic Research with comparative investigations in Arctic ice areas” by a grant to PQ (Qu148/16). VN is funded by FCT, Portugal—SFRH/BPD/88914/2012.
: All applicable international, national, and/or institutional guidelines for the care and use of animals were followed.