bascule de visibilité Search & Display Options

Tout Sélectionner    Désélectionner
 |   | 
Détails
   print
  Enregistrement Liens
Auteur (up) Mablouke, C.; Kolasinski, J.; Potier, M.; Cuvillier, A.; Potin, G.; Bigot, L.; Frouin, P.; Jaquemet, S. url  doi
openurl 
  Titre Feeding habits and food partitioning between three commercial fish associated with artificial reefs in a tropical coastal environment Type Article scientifique
  Année 2013 Publication Revue Abrégée African Journal of Marine Science  
  Volume 35 Numéro Pages 323-334  
  Mots-Clés Lutjanus kasmira; Priacanthus hamrur; Reunion; Reunion island; Selar crumenophthalmus; Stable Isotopes; Stomach contents; trophic niche width  
  Résumé At Reunion Island (south-western Indian Ocean), artificial reefs were submerged in 2003 in a bay and were soon colonised by fish, among which were the highly abundant commercial species Lutjanus kasmira, Priacanthus hamrur and Selar crumenophthalmus. The high concentration and diversity of fish around the artificial reefs is surprising, considering the low abundance of potential benthic prey. We investigated the diet and food partitioning between the aforementioned species using stomach content and stable isotope analyses (delta C-13, delta N-15). Priacanthus hamrur and S. crumenophthalmus fed on a larger prey diversity and showed significant overlap in their diets, with crustacean larvae the dominant prey. Fish larvae dominated L. kasmira's diet, and delta N-15 values confirmed the species' higher trophic level. Differences in delta C-13 between P. hamrur and S. crumenophthalmus indicated niche segregation, probably as a way to reduce competition, with P. hamrur being characterised by a smaller delta C-13 range and exhibiting a smaller isotopic niche than S. crumenophthalmus. There was a significant correlation between delta N-15 and fish standard length for the three species, suggesting that ontogeny partially explained the niche breadth. There was also a significant correlation between delta C-13 and length for L. kasmira, whereas individual specialisation was prevalent in S. crumenophthalmus.  
  Adresse  
  Auteur institutionnel Thèse  
  Editeur Lieu de Publication Éditeur  
  Langue Langue du Résumé Titre Original  
  Éditeur de collection Titre de collection Titre de collection Abrégé  
  Volume de collection Numéro de collection Edition  
  ISSN 1814-232x ISBN Médium  
  Région Expédition Conférence  
  Notes Approuvé pas de  
  Numéro d'Appel LL @ pixluser @ collection 289  
Lien permanent pour cet enregistrement
Tout Sélectionner    Désélectionner
 |   | 
Détails
   print

Save Citations:
Export Records: