FN Archimer Export Format
PT J
TI Structure and seasonal variability in fish food webs in a small macrotidal estuary (Canche estuary, Eastern English Channel) based on stable carbon and nitrogen isotope analysis
BT 
AF Bouaziz, Rym
   LE LOCH, Francois
   Rolet, Céline
   Veillet, Guillaume
   Munaron, Jean-Marie
   Rabhi, Khalef
   Borhane Djebar, Abdellah
   Amara, Rachid
   Ben Rais Lasram, Frida
AS 1:1,2;2:3;3:4;4:1,4;5:3;6:1;7:2;8:1;9:1;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;
C1 Univ. Littoral Côte d’Opale, Univ. Lille, CNRS, UMR 8187, LOG, Laboratoire d’Océanologie et de Géosciences, F-62930 Wimereux, France
   Université Badji Mokhtar Annaba, B.P.12, Annaba, 23000, Algeria
   IRD, Univ Brest, CNRS, Ifremer, LEMAR, F-29280 Plouzane, France
   GEMEL Groupe d’Etude des Milieux Estuariens et Littoraux, 115 Quai Jeanne d’Arc, F-80230 Saint-Valery-sur-Somme, France
C2 UNIV LITTORAL COTE D'OPALE, FRANCE
   UNIV BADJI MOKHTAR ANNABA, ALGERIA
   IRD, FRANCE
   GEMEL, FRANCE
UM LEMAR
IN WOS Cotutelle UMR
   copubli-france
   copubli-univ-france
   copubli-int-hors-europe
   copubli-sud
IF 2.166
TC 5
UR https://archimer.ifremer.fr/doc/00682/79423/82008.pdf
LA English
DT Article
DE ;Food web;Macrotidal estuary;Stable isotopes;Seasonal variations;Nursery
AB Estuaries are highly important nursery habitats for a range of fish species because they provide refuge and food, especially for juveniles. However, the importance of specific salinity zones and adjacent shallow marine habitats (subtidal and surf zones) for fish feeding is not well understood, particularly in small macrotidal estuaries. Using the example of the Canche estuary, which is considered a reference for small macrotidal estuaries in France, we investigated the structure and seasonal variability in fish food webs based on stable carbon and nitrogen isotope analysis. Our results provide a new vision of the Canche estuary, which has been considered a major feeding ground for all marine fish that spend time there. Based on C results, our results revealed that organic matter of terrestrial origin has little influence on functioning of the Canche food web, except for flounders in the upstream area of the estuary. Conversely, microphytobenthos and marine particulate organic matter contribute most to the food web of fish in the estuary. Our study also revealed that some fish species visit the estuary for reasons other than feeding, such as to avoid predation or because they are carried by the tide. This work confirmed the suitability of using stable isotopes to trace fish fidelity to feeding grounds less than 10 km apart. 
PY 2021
PD MAY
SO Regional Studies In Marine Science
SN 2352-4855
PU Elsevier BV
VL 44
UT 000663076200010
DI 10.1016/j.rsma.2021.101694
ID 79423
ER

EF