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Nawel Kheroufi

  • Biodiversity Journal, 12 (4): 0865-0873

    Nawel Kheroufi, Amel Hamdani & Noureddine Soltani
    Acute exposure of cadmium on Donax trunculus Linnaeus, 1758 (Mollusca Bivalvia) during the vitellogenesis process: histological and biochemical aspects
    https://doi.org/10.31396/Biodiv.Jour.2021.12.4.865.873

    ABSTRACT
    This work aims to evaluate the impact of cadmium on the vitellogenesis of Donax trunculus Linnaeus, 1758 an edible Mollusk species, by carrying out a histological study in which the morphometric parameters of the oocytes were measured, and by using vitellogenin (Vtg) and vitellin (Vn) as biomarkers of reprotoxicity. Clams were collected from a clean site (El-Battah) during the period of morphological maturity and reared under laboratory conditions. Cadmium chloride was added to the rearing water at two sublethal concentrations (LC10 and LC25-96h) previously determined. Two-way ANOVA revealed significant effects of Cd concentrations and exposure time on all studied parameters. The data obtained suggest that this metal can act as endocrine-disrupting chemicals in Donax trunculus.