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Chabaca Hasna

  • Biodiversity Journal, 11 (2): 573-580

    Chabaca Hasna, Marniche Faiza & Tadjine Aicha
    Diatoms diversity in Oubeïra Lake, northeastern Algeria
    https://doi.org/10.31396/Biodiv.Jour.2020.11.2.573.580

    ABSTRACT
    Mediterranean wetlands are currently subjected to habitat loss and degradation derived from pollution, climate change, eutrophication and the occurrence of exotic species as the most important threats, affecting numerous taxonomic groups. Different tools are being used to assess water quality conditions in these environments, including physicochemical measurements and biological indicators (fish, invertebrates, and diatoms). We aim to study the diversity and ecology of the diatom assemblage inhabiting the RAMSAR site Oubeïra Lake in northeastern Algeria, contributing to the catalogue of diatoms recorded for Algeria. The identification of the morphological characters allowed us to make an inventory of 18 genera of diatoms belonging to 13 families of diatoms. Navicula and Cymbella resulted in the most abundant genera in the two studied stations during February, June, and August over two years (2017, 2018). The diatom community is structured, with a diversity index (H) equal to ~2.30.