République Tunisienne  
Ministère de l'Agriculture, des Ressources Hydrauliques et de la Pêche

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  • Télécharger le document : Distribution of Trace Metals (Cd, Hg, Pb, Cu) and Polycyclic Aromatic Hydrocarbons (PAH) in Loggerhead Turtles (Reptilia: Testudines: Cheloniidae: Caretta Caretta (Linnaeus, 1758)) Tissues Stranded Along the North Tunisian Coasts
  • Auteurs : Hedia Attia El Hili, Nadia Mzoughi, Sami Karaa et Lassaad Chouba

    Date de publication : 2018

    Revue : Symbiosis

  •  

    Mots clés : Trace metals; polycyclic aromatic hydrocarbons; loggerhead turtles; stranding; Tunisia;

    Résumé: Cadmium, mercury, Lead, Copper and Polycyclic Aromatic Hydrocarbons, in liver, kidney, muscle and heart samples of 5 loggerhead turtles Caretta caretta (Linneaus, 1758) stranded along the north Tunisian coast were measured. Analyses were performed by using the Atomic Absorption Spectrometry (AAS, VARIAN 220Z) for trace metals and the mass chromatography for PAH. The results demonstrated that the kidney and the liver are the main concentrated organs and muscles generally display the lowest trace metals and PAH concentration. By comparing with some bibliographic data, the mean trace metals concentrations are about identical to loggerhead turtles’ tissues of others localities in Mediterranean Sea. In addition, obtained results show that the kidney is relatively the most concentrated organ in cadmium, lead and PAH, the liver and the heart are relatively the two most organs concentrated in copper and the highest concentrations of mercury were found in the liver. This is the first assessment into metal and polycyclic aromatic hydrocarbons distribution in tissues of loggerhead turtles from Tunisian Mediterranean Coastline.

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