New publication: Weddell seal behaviour during an exceptional oceanographic event in the Filchner-Ronne Ice Shelf in 2017

Dear colleagues,

On behalf of all the co-authors, we are happy to inform you on the
publication of our new article: Weddell seal behaviour during an exceptional oceanographic event in the Filchner-Ronne Ice Shelf in 2017

Abstract
Rapid and regionally contrasting climate changes have been observed around Antarctica. However, our understanding of the impact of these changes on ecosystems remains limited, and there is an urgent need to better identify habitats of Antarctic species. The Weddell seal (Leptonychotes weddellii) is a circumpolar mesopredator and an indicative species of Antarctic marine communities. It has been extensively studied in the western Ross Sea and East Antarctica, and an understanding of its ecology in the Weddell Sea in the wintertime is emerging. We documented the behavioural response(s) of four Weddell seals from February to June in 2017 in the Filchner-Ronne Ice Shelf region and related these to unusual oceanographic conditions in 2017. Unexpectedly, we found that Weddell seals had the longest foraging effort within the outflow of Ice Shelf Water or at its turbulent boundary. They also foraged on the eastern side of the trough from April to June within the Modified Warm Deep Water and seem to take advantage of the unusual conditions of persistent inflow of warm waters through the winter. Linking animal behavioural responses to oceanographic conditions is informative for quantifying rarely recorded events and provides great insight into how predators may respond to changing conditions.

The article can be obtained from
https://www.cambridge.org/core/journals/antarctic-science/article/weddell-seal-behaviour-during-an-exceptional-oceanographic-event-in-the-filchnerronne-ice-shelf-in-2017/7ADDF50F806311765B06FDCE4A9A7D4E
Or upon request to sara.labrousse@locean.ipsl.fr

Kind regards
--
Sara Labrousse, Dr.
Postdoctoral Researcher
Laboratoire d'Océanographie et du Climat: Expérimentations et approches numériques (LOCEAN)
UMR 7159 Sorbonne-Université, CNRS, MNHN, IRD, IPSL
4 Place Jussieu,
75005 Paris, France