FN Archimer Export Format
PT J
TI Sub‐mesoscale fronts modify elephant seals foraging behavior
BT 
AF Rivière, Pascal
   Jaud, Thomas
   Siegelman, Lia
   Klein, Patrice
   Cotté, Cedric
   Le Sommer, Julien
   Dencausse, Guillaume
   Guinet, Christophe
AS 1:1;2:1;3:1,2,3;4:2,3,4;5:5;6:6;7:4;8:7;
FF 1:;2:;3:;4:;5:;6:;7:;8:;
C1 Laboratoire des sciences de l'Environnement MARin (LEMAR, UMR 6539) Univ. Brest‐CNRS‐IRD‐Ifremer IUEM Plouzané ,France
   Jet Propulsion Laboratory (NASA) California Institute of Technology Pasadena California, USA
   Department of Environmental Science and Engineering California Institute of Technology Pasadena California, USA
   Laboratoire d'Océanographie Physique et Spatiale (LOPS, UMR 6523)CNRS‐Ifremer‐Univ. Brest‐IRD IUEM Brest ,France
   LOCEANSorbonne Universités (UPMC, Univ Paris 06) CNRS‐IRD‐MNHN Paris, France
   Univ. Grenoble Alpes, CNRS, IRD, IGE Grenoble, France
   Centre d'études biologiques de Chizé, CEBC, CNRS Chizé ,France
C2 UBO, FRANCE
   JET PROP LAB, USA
   CALTECH, USA
   CNRS, FRANCE
   UNIV PARIS 06, FRANCE
   UNIV GRENOBLE ALPES, FRANCE
   CNRS, FRANCE
UM LOPS
   LEMAR
IN WOS Cotutelle UMR
   DOAJ
   copubli-france
   copubli-univ-france
   copubli-int-hors-europe
IF 8.507
TC 11
UR https://archimer.ifremer.fr/doc/00584/69636/67497.pdf
   https://archimer.ifremer.fr/doc/00584/69636/67498.pdf
LA English
DT Article
AB Sub‐mesoscale fronts—with scales from 1 to 50 km are ubiquitous in satellite images of the world oceans. They are known to generate strong vertical velocities with significant impacts on biogeochemical fluxes and pelagic ecosystems. Here, we use a unique data set, combining high‐resolution behavioral and physical measurements, to determine the effects of sub‐mesoscale structures on the foraging behavior of 12 instrumented female southern elephant seals. These marine mammals make long voyages (several months over more than 2000 km), diving and feeding continuously in the Antarctic Circumpolar Current. Our results show that elephant seals change their foraging behavior when crossing sub‐mesoscale fronts: They forage more and at shallower depths inside sub‐mesoscale fronts compared to nonfrontal areas, and they also reduce their horizontal velocity likely to concentrate on their vertical diving activity. The results highlight the importance of sub‐mesoscale fronts in enhancing prey accessibility for upper trophic levels, and suggest that trophic interactions are stimulated in these structures. 
PY 2019
PD DEC
SO Limnology And Oceanography Letters
SN 2378-2242
PU Wiley
VL 4
IS 6
UT 000497651700002
BP 193
EP 204
DI 10.1002/lol2.10121
ID 69636
ER

EF