FN Archimer Export Format
PT J
TI Contrasting perception of fish trophic level from stomach content and stable isotope analyses: A Mediterranean artificial reef experience
BT 
AF CRESSON, Pierre
   RUITTON, Sandrine
   OURGAUD, Melanie
   HARMELIN-VIVIEN, Mireille
AS 1:;2:;3:;4:;
FF 1:;2:;3:;4:;
C1 Aix Marseille Univ, CNRS INSU, IRD, MIO,UM 110, F-13288 Marseille, France.
   Univ Toulon & Var, CNRS INSU, IRD, MIO,UM 110, F-83957 La Garde, France.
C2 UNIV AIX MARSEILLE, FRANCE
   UNIV TOULON & VAR, FRANCE
IF 1.866
TC 53
UR https://archimer.ifremer.fr/doc/00186/29708/28188.pdf
LA English
DT Article
DE ;Artificial reefs;Fish diet;NW Mediterranean;Stable isotopes;Stomach content;Trophic level
AB A large complex of artificial reefs was deployed in the Bay of Marseilles, North-Western Mediterranean, for the enhancement of commercial fisheries stocks. Carbon and nitrogen stable isotope and stomach content analyses were performed on 23 fish species collected on the artificial reefs to assess their trophic position and feeding behaviour. Results indicated that fish diets were not modified on the artificial reefs compared to natural environments, nor was the structure of their trophic network. Artificial reefs, with their complex design, provide diverse and abundant food sources for fishes. Ranges of delta C-13 and delta N-15 of artificial reef fishes were comparable to those recorded in natural Mediterranean environments, with a similar trophic organization. However, some discrepancies appeared when comparing fish trophic level based on isotopic or diet results, which calls for a careful interpretation of stable isotope values as direct indicators of trophic level.
PY 2014
PD MAR
SO Journal Of Experimental Marine Biology And Ecology
SN 0022-0981
PU Elsevier Science Bv
VL 452
UT 000331683800007
BP 54
EP 62
DI 10.1016/j.jembe.2013.11.014
ID 29708
ER

EF