1. Study of the ichthyofauna diet in the Ichkeul Lake (Tunisia)
- Author
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Shaiek, M., Romdhane, M. S., François Le Loc'h, Ecosystèmes et Ressources Aquatiques (UR03AGRO1), Institut National Agronomique de Tunisie, Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD), and Tito de Morais, Claire
- Subjects
abundance ,Tunisia ,coastal lagoon ,ACL ,population-structure ,Ichkeul Lake ,Prey ,mediterranean brackish lagoon ,Stomach contents ,Trophic group ,organization ,portugal ,anguilla-anguilla ,diversity ,Diet ,[SDE.BE] Environmental Sciences/Biodiversity and Ecology ,communities ,Ichthyofauna ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology ,france - Abstract
WOS:000363709700003; International audience; In order to define the structure of trophic network of Ichkeul Lake in Tunisia, diet of main teleost fish species was determined during two seasons, wet and dry. A total of 491 stomachs from 16 teleost species was analyzed. The analysis revealed spatial variability (East under marine influence and West with more continental effect) and temporal one (wet and dry seasons). Based on stomach contents, nine trophic groups were revealed, including eight monospecific groups. The main prey are mudflat snails (Hydrobia ventrosa, H. acuta), bivalves (Abra alba, Cerastoderma glaucum), amphipods and isopods, as well as seagrass (Potamogeton pectinatus, Ruppia cirrhosa) and water brackish algae (Ulva spp. and Chaetomorpha spp., Cladophora sp., Polysiphonia sp.).
- Published
- 2015