Funding for this research was provided by:
Fondo para la Investigación Científica y Tecnológica (PICTO 2010-0111)
Instituto Antártico Argentino (PINST-05)
Received: 28 May 2019
Revised: 5 December 2019
Accepted: 11 December 2019
First Online: 21 December 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interests.
: All research involving gentoo penguins was conducted under appropriate international, national and/or institutional guidelines for the care and use of animals.