[en] The aim of this work was to identify and compare, using nitrogen and carbon stable isotope data, the food sources supporting consumer communities in a Mediterranean seagrass bed (Gulf of Calvi, Corsica) with those in an adjacent epilithic algal dominated community. Isotopic data for consumers are not significantly different in the two communities. Particulate matter and algal material (seagrass epiflora and dominant epilithic macroalgae) appear to be the main food sources in both communities. Generally, the 13C of animals suggests that the seagrass Posidonia oceanica (L.) Delile represents only a minor component of their diet or of the diet of their prey, but the occurrence of a mixed diet is not excluded. P.oceanica dominates the diet of only of few species, among which holothurians appear as key components in the cycling of seagrass material.
Centre/Unité de recherche :
MARE - Centre Interfacultaire de Recherches en Océanologie - ULiège
Disciplines :
Sciences de l’environnement & écologie Sciences aquatiques & océanologie
Auteur, co-auteur :
Lepoint, Gilles ; Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Océanologie
Nyssen, Fabienne ; Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Systématique et diversité animale
Gobert, Sylvie ; Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Océanologie
Dauby, Patrick ; Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Systématique et diversité animale
Bouquegneau, Jean-Marie ; Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Océanologie
Langue du document :
Anglais
Titre :
Relative impact of a seagrass bed and its adjacent epilithic algal community in consumer diets
Date de publication/diffusion :
2000
Titre du périodique :
Marine Biology
ISSN :
0025-3162
eISSN :
1432-1793
Maison d'édition :
Springer Science & Business Media B.V., New York, Etats-Unis - New York
Volume/Tome :
136
Pagination :
513-518
Peer reviewed :
Peer reviewed vérifié par ORBi
Organisme subsidiant :
FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture FWB - Fédération Wallonie-Bruxelles
Commentaire :
The original publication is available at www.springerlink.com
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