FN Archimer Export Format
PT J
TI Increased sea ice cover alters food web structure in East Antarctica
BT 
AF Michel, Loic
   Danis, Bruno
   Dubois, Philippe
   Eleaume, Marc
   Fournier, Jerome
   Gallut, Cyril
   Jane, Philip
   Lepoint, Gilles
AS 1:1;2:2;3:2;4:3;5:4;6:5;7:6;8:1;
FF 1:;2:;3:;4:;5:;6:;7:;8:;
C1 Laboratory of Oceanology, Freshwater and Oceanic Sciences Unit of reSearch (FOCUS), University of Liège (ULg), Liège, Belgium
   Marine Biology Laboratory, Université Libre de Bruxelles (ULB), Brussels, Belgium
   Institut de Systématique, Évolution, Biodiversité (ISYEB), Muséum National d’Histoire Naturelle, CNRS, Sorbonne Université, EPHE, Paris, France
   CNRS, UMR 7208 BOREA, Biological Marine Station, National Museum of Natural History (MNHN), Concarneau, France
   Institut de Systématique, Évolution, Biodiversité (ISYEB), Sorbonne Université, CNRS, MNHN, EPHE, Station marine de Concarneau, Concarneau, France
   Aquarium de Paris - Cinéaqua, Paris, France
C2 UNIV LIEGE, BELGIUM
   UNIV LIBRE BRUSSELS, BELGIUM
   MNHN, FRANCE
   MNHN, FRANCE
   MNHN, FRANCE
   AQUARIUM PARIS CINÉAQUA, FRANCE
IN DOAJ
IF 3.998
TC 27
UR https://archimer.ifremer.fr/doc/00500/61194/64726.pdf
   https://archimer.ifremer.fr/doc/00500/61194/64728.pdf
   https://archimer.ifremer.fr/doc/00500/61194/64729.mp4
LA English
DT Article
AB In recent years, sea ice cover along coasts of East Antarctica has tended to increase. To understand ecological implications of these environmental changes, we studied benthic food web structure on the coasts of Adélie Land during an event of unusually high sea ice cover (i.e. two successive austral summers without seasonal breakup). We used integrative trophic markers (stable isotope ratios of carbon, nitrogen and sulfur) to build ecological models and explored feeding habits of macroinvertebrates. In total, 28 taxa spanning most present animal groups and functional guilds were investigated. Our results indicate that the absence of seasonal sea ice breakup deeply influenced benthic food webs. Sympagic algae dominated the diet of many key consumers, and the trophic levels of invertebrates were low, suggesting omnivore consumers did not rely much on predation and/or scavenging. Our results provide insights about how Antarctic benthic consumers, which typically live in an extremely stable environment, might adapt their feeding habits in response to sudden changes in environmental conditions and trophic resource availability. They also show that local and/or global trends of sea ice increase in Antarctica have the potential to cause drastic changes in food web structure, and therefore to impact benthic communities. 
PY 2019
PD MAY
SO Scientific Reports
SN 2045-2322
PU Springer Science and Business Media LLC
VL 9
IS 1
UT 000469418100008
DI 10.1038/s41598-019-44605-5
ID 61194
ER

EF