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

Autor: Sardenne F; IRD, Univ Brest, CNRS, Ifremer, LEMAR, IUEM, F-29280 Plouzané, France. Electronic address: fany.sardenne@ird.fr., Le Loc'h F; IRD, Univ Brest, CNRS, Ifremer, LEMAR, IUEM, F-29280 Plouzané, France., Bodin N; Sustainable Ocean Seychelles, BeauBelle, Mahé, Seychelles., Mve-Beh JH; IRD, Univ Brest, CNRS, Ifremer, LEMAR, IUEM, F-29280 Plouzané, France; Institut de Recherches Agronomiques et Forestières, CENAREST (Laboratoire d'Hydrobiologie et d'Ichtyologie), BP 2246 Libreville, Gabon., Munaron JM; IRD, Univ Brest, CNRS, Ifremer, LEMAR, IUEM, F-29280 Plouzané, France., Mbega JD; Institut de Recherches Agronomiques et Forestières, CENAREST (Laboratoire d'Hydrobiologie et d'Ichtyologie), BP 2246 Libreville, Gabon., Nzigou AR; Université des sciences et techniques de Masuku, Franceville, Gabon., Sadio O; IRD, Univ Brest, CNRS, Ifremer, LEMAR, Dakar, Sénégal., Budzinski H; Bordeaux University, EPOC-LPTC, UMR 5805 CNRS, Talence, France., Leboulanger C; MARBEC, Univ Montpellier, IRD, Ifremer, CNRS, F-34200 Sète, France.
Jazyk: angličtina
Zdroj: Marine pollution bulletin [Mar Pollut Bull] 2024 Feb; Vol. 199, pp. 116009. Date of Electronic Publication: 2024 Jan 12.
DOI: 10.1016/j.marpolbul.2023.116009
Abstrakt: 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.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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