SARDENNE, Fany; LE LOC'H, François; BODIN, Nathalie; MVE-BEH, Jean-Hervé; MUNARON, Jean-Marie; MBEGA, Jean-Daniel; NZIGOU, Aimé Roger; SADIO, Oumar; BUDZINSKI, Hélène; LEBOULANGER, Christophe

doi:10.1016/j.marpolbul.2023.116009

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Article de revue

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Marine Pollution Bulletin. 2024-02-01, vol. 199, p. 116009

Résumé en anglais

Akanda National Park (ANP) is composed of mangrove ecosystems bordering Libreville, Gabon's capital. The contamination of aquatic resources from the ANP by persistent organic pollutants (POPs) and trace metals (TMs) was never evaluated. To provide a basis for their monitoring in the ANP, five species (two fish, two mollusks, and one crustacean) were analyzed from three sampling sites in 2017. Contamination levels for POPs and TMs were below maximum acceptable limits for seafood, including Cd and Pb. No DDT was found in any sample. Inter-specific differences were more obvious than the differences among sites, although the results may be biased by an unbalanced sampling design. The oyster Crassostrea gasar was the most contaminated species, making this species a good candidate to assess environmental contamination in the area. The studied species also contained essential elements, such as Fe, Zn and Mn at interesting levels in a nutritional point of view.< Réduire

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Contaminants

Fish

Mangrove

Marine protected area

Mollusks

URI

https://oskar-bordeaux.fr/handle/20.500.12278/201320

DOI

http://dx.doi.org/10.1016/j.marpolbul.2023.116009

Unités de recherche

EPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805

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Persistent organic pollutants and trace metals in selected marine organisms from the Akanda National Park, Gabon (Central Africa)

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