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Article Dans Une Revue BioMetals Année : 2023

Metallic trace elements in marine sponges living in a semi-enclosed tropical lagoon

Résumé

was visually discriminated using a principal component analysis (PCA). Sponges showed Fe, Mn, Cr, Ni, and Zn concentrations 2 to 10 times higher than in the surrounding sediments and seawater. Hyrtios erectus accumulated 3 to 20 times more MTE than R. globostellata, except for Zn. Average bioconcentration factors in sponge tissues were (in decreasing order) Zn > Ni > Mn > Fe > Cr relate to sediments and Fe > Ni > Mn > Cr > Zn relate to seawater. The PCA confirmed higher MTE concentrations in H. erectus compared to R. globostellata. Our results confirm that marine sponges can accumulate MTE to some extent and could be used as a tool for assessing metals contamination in lagoon ecosystems, particularly in New Caledonia, where 40% of the lagoon is classified as a UNESCO World Heritage Site.
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Dates et versions

hal-04271206 , version 1 (15-01-2024)

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Federica Maggioni, Pierre-Louis Stenger, Yves Letourneur, Philippe Jourand, Clarisse Majorel. Metallic trace elements in marine sponges living in a semi-enclosed tropical lagoon. BioMetals, 2023, ⟨10.1007/s10534-023-00536-3⟩. ⟨hal-04271206⟩
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