FN Archimer Export Format
PT J
TI Prey preferences of adult sea bass Dicentrarchus labrax in the northeastern Atlantic: implications for bycatch of common dolphin Delphinus delphis
BT 
AF SPITZ, Jerome
   CHOUVELON, Tiphaine
   CARDINAUD, M.
   LORANCE, Pascal
AS 1:1,2;2:1;3:3,4;4:3;5:5;
FF 1:;2:;3:;4:;5:PDG-RBE-EMH;
C1 Univ La Rochelle, CNRS, Littoral Environm & Soc UMR 7266, F-17032 La Rochelle, France.
   Univ British Columbia, Fisheries Ctr, Marine Mammal Res Unit, Vancouver, BC V6T 1Z4, Canada.
   Univ La Rochelle, CNRS, UMS 3462, Observ PELAGIS Syst Observat Conservat Mammiferes, F-17071 La Rochelle, France.
   Univ Bretagne Occidentale, Inst Univ Europeen Mer, CNRS, Lab Sci Environm Marin,UMR 6539, F-29280 Plouzane, France.
   IFREMER, F-44311 Nantes, France.
C2 UNIV LA ROCHELLE, FRANCE
   UNIV BRITISH COLUMBIA, CANADA
   UNIV LA ROCHELLE, FRANCE
   UBO, FRANCE
   IFREMER, FRANCE
SI NANTES
SE PDG-RBE-EMH
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
   copubli-int-hors-europe
IF 2.525
TC 38
UR https://archimer.ifremer.fr/doc/00125/23625/21485.pdf
LA English
DT Article
CR EVHOE 2005
   EVHOE 2006
   EVHOE 2008
BO Thalassa
DE ;Chesson's index;marine top predator;prey selection;SIAR;stable isotope;stomach content
AB In the northeastern Atlantic, adult sea bass (Dicentrarchus labrax) is one of largest fish living on the shelf, and this species has important commercial value. However, pelagic trawl fisheries that target sea bass have negative operational interactions with common dolphins (Delphinus delphis). Our goal was to determine the diet of adult sea bass in the Bay of Biscay from stomachcontent and stable-isotope analyses, and explore the dietary overlap between sea bass and common dolphins. We found that sea bass primarily target small pelagic fish, most notably mackerel (Scomber scombrus), scads (Trachurus spp.), anchovy (Engraulis encrasicolus), and sardine (Sardina pilchardus). These four species also dominated the diets of common dolphins. This overlap in feeding preferences could increase the risk of dolphins being caught by trawl fisheries while feeding among sea bass, and may be an underlying mechanism to explain the high rate of common dolphin bycatch observed in the pelagic trawl fishery for sea bass in the Bay of Biscay. Understanding the foraging ecology and trophic interactions of predator species is an essential step for identifying and resolving management issues in the northeastern Atlantic and other marine ecosystems.
PY 2013
PD MAR
SO Ices Journal Of Marine Science
SN 1054-3139
PU Oxford Univ Press
VL 70
IS 2
UT 000318091700020
BP 452
EP 461
DI 10.1093/icesjms/fss200
ID 23625
ER

EF