FN Archimer Export Format
PT J
TI Role of estuarine habitats for the feeding ecology of the European eel (Anguilla anguilla L.)
BT 
AF Denis, Jeremy
   Rabhi, Khalef
   LE LOCH, Francois
   Ben Rais Lasram, Frida
   Boutin, Kévin
   Kazour, Maria
   Diop, Mamadou
   Gruselle, Marie-Christine
   Amara, Rachid
AS 1:1;2:1;3:2;4:1;5:1;6:1;7:1;8:3;9:1;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;
C1 Université Littoral Côte d’Opale, Université Lille, CNRS, IRD, UMR 8187, LOG, Laboratoire d’Océanologie et de Géosciences, Wimereux, France
   IRD, Université Brest, CNRS, Ifremer, LEMAR, Plouzane, France
   Parc Naturel Marin des Estuaires Picards et de la Mer d’Opale, OFB, Saint-Étienne-au-Mont, France
C2 UNIV LITTORAL COTE D’OPALE, FRANCE
   IRD, FRANCE
   PARC NATUREL MARIN PICARD MER OPALE, FRANCE
UM LEMAR
IN WOS Cotutelle UMR
   DOAJ
   copubli-france
   copubli-univ-france
IF 3.7
TC 11
UR https://archimer.ifremer.fr/doc/00783/89473/94968.pdf
   https://archimer.ifremer.fr/doc/00783/89473/94969.docx
LA English
DT Article
AB This study aims to characterize and compare the feeding ecology of the European eels (Anguilla anguilla L.) during the continental phase (i.e. yellow and silver) along a salinity gradient (i.e. lower, middle and upper) in six northern France estuaries (i.e. brackish water). The diet and stable isotopic (i.e. δ15N and δ13C values) compositions of eels collected with a fyke net in six estuaries (Slack, Wimereux, Liane, Canche, Authie and Somme estuaries) located along the French coast of the eastern English Channel per season over a year were described by combining gut content and stable isotope analyses. Eel guts were dominated by typical BW prey, Malacostraca and Actinopterygii (54% and 40%, respectively), with the gammare Gammarus zaddachi and the green crab Carcinus maenas (38% and 14%, respectively), and smaller yellow eels of A. anguilla and juvenile European flounder, Platichthys flesus (19% and 14%, respectively) being the most frequently found in their guts. The δ13C values of a majority of eels confirmed the sea- and brackish water-specific carbon resources. Dietary and isotopic niche revealed no clear change between total length, silvering stages and seasons, but a significant difference between salinity gradients and estuaries. Eels δ13C values showed significant enrichment from upper to lower along the estuaries while the δ15N values showed an inverse effect, with the lowest values in the lower part and highest in the upper part. Higher variability in δ13C values in larger estuaries suggested that eels feed on a wide range of food sources than in smaller estuaries. While eels in the smaller estuaries fed mainly on Actinopterygii prey, eels in the larger ones had a lower trophic level (i.e. δ15N values) and fed mainly on Malacostraca prey. This spatial difference in dietary and isotopic niche is discussed in relation to biological structure of eel and environmental variables. 
PY 2022
SO Plos One
SN 1932-6203
PU Public Library of Science (PLoS)
VL 17
IS 7
UT 000835338100026
DI 10.1371/journal.pone.0270348
ID 89473
ER

EF