Distribution of mercury species in different tissues and trophic levels of commonly consumed fish species from the south Bay of Biscay (France)
| Autor: | Jonathan Deborde, Amaëlle Bisch, Pierre Cresson, Gilles Morandeau, Nathalie Caill-Milly, Aurore Gueux, Tiphaine Mille, Mathilde Monperrus |
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| Přispěvatelé: | IFREMER Direction de l'Environnement Littoral, Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Laboratoire Ressources halieutiques Manche Mer du nord, IFREMER Centre Manche Mer du Nord, (HMMN), Laboratoire Environnement Ressources des Pertuis Charentais (LER/PC), Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM), Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), European Project: MICROPOLIT, Laboratoire Environnement-Ressources d'Arcachon (LERAR), LITTORAL (LITTORAL), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Laboratoire Ressources halieutiques Boulogne sur mer (LRHBL), Halieutique Manche Mer du Nord (HMMN), Laboratoire Environnement Ressources des Pertuis Charentais (LERPC) |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Red mullet Food Chain Biomagnification Zoology chemistry.chemical_element Teleostei 010501 environmental sciences Aquatic Science Oceanography 01 natural sciences chemistry.chemical_compound Contamination [CHIM.ANAL]Chemical Sciences/Analytical chemistry Animals [CHIM]Chemical Sciences 14. Life underwater Methylmercury Ecosystem 0105 earth and related environmental sciences Trophic level biology 010604 marine biology & hydrobiology Fishes Merluccius merluccius Mercury Organotropism Methylmercury Compounds biology.organism_classification Bioaccumulation Pollution Food web Mercury (element) Bays chemistry 13. Climate action [SDE]Environmental Sciences France Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Marine Pollution Bulletin Marine Pollution Bulletin, Elsevier, 2021, 166, pp.112172. ⟨10.1016/j.marpolbul.2021.112172⟩ Marine Pollution Bulletin (0025-326X) (Elsevier BV), 2021-05, Vol. 166, P. 112172 (8p.) Marine Pollution Bulletin, 2021, 166, pp.112172. ⟨10.1016/j.marpolbul.2021.112172⟩ |
| ISSN: | 0025-326X |
| DOI: | 10.1016/j.marpolbul.2021.112172 |
| Popis: | International audience; Mercury (Hg) is a contaminant of global concern in marine ecosystems, notably due to its ability to accumulate and concentrate in food webs. Concentrations of total mercury (THg), methylmercury (MeHg) and inorganic mercury (IHg) were assessed and compared in different tissues (liver, muscle, and gonads) of three common fish species (hake Merluccius merluccius, red mullet Mullus surmuletus, and sole Solea solea) from the continental shelf from the southern part of the Bay of Biscay. Several studies investigated Hg concentration in fish muscle, but few assessed concentrations in other organs, despite the importance of such data to understand contaminant organotropism and metabolization. Results showed that trophic position and feeding habitat are required to understand the variability of Hg concentration in muscle between fish species. In addition, high MeHg/THg ratio in muscle could be explained by the predatory behavior of the studied fish species and the biomagnification of this Hg species within the food web, MeHg. Despite differences between species, Hg concentration was always higher in muscle (from 118 ± 64 to 338 ± 101 ng g−1 w.w.) and liver (from 122 ± 108 to 271 ± 95 ng g−1 w.w.). These results can be related to physiological processes especially the MeHg detoxification strategies. |
| Databáze: | OpenAIRE |
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