| Type |
Article |
| Date |
2014-03 |
| Language |
English |
| Author(s) |
Cresson Pierre , Ruitton Sandrine, Ourgaud Melanie, Harmelin-Vivien Mireille |
| Affiliation(s) |
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. |
| Source |
Journal Of Experimental Marine Biology And Ecology (0022-0981) (Elsevier Science Bv), 2014-03 , Vol. 452 , P. 54-62 |
| DOI |
10.1016/j.jembe.2013.11.014 |
| WOS© Times Cited |
53 |
| Keyword(s) |
Artificial reefs, Fish diet, NW Mediterranean, Stable isotopes, Stomach content, Trophic level |
| Abstract |
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. |
| Full Text |
| File |
Pages |
Size |
Access |
|
9 |
919 KB |
Access on demand |
| Author's final draft |
24 |
909 KB |
Open access |
|
