Cipolloni, Océanne-Amaya; Couture, Patrice 
ORCID: https://orcid.org/0000-0002-1944-5136; Cordonnier, Sébastien et Pascal, Pierre-Yves
(2024).
Temporal fluctuation of metallic trace elements concentrations in three morphotypes of floating holopelagic Sargassum from the Caribbean coast (Guadeloupe, French West Indies).
Marine Pollution Bulletin
, vol. 201
.
p. 116229.
DOI: 10.1016/j.marpolbul.2024.116229.
Résumé
Since 2011, the Caribbean coasts have unprecedented stranding of a pelagic brown macroalgae Sargassum inducing damages for coastal ecosystems and economy. This study evaluated the temporal fluctuations of metallic trace elements (MTE) in Sargassum freshly arrived on the Caribbean coast. From May 2020 to September 2021, 12 floating samples of three morphotypes (S. fluitans III and S. natans I and VIII) were regularly collected in the Petit Cul-de-Sac Marin (Guadeloupe, French West Indies). Measured concentrations of 28 metal(loid)s trace elements reveal i) an absence of seasonal patterns in MTE concentrations except for metals Fe and Al during 2020 summer ii) a regular and high As content during the entire survey iii) a similar trend of contamination for each morphotype. The constant and high amount of As implies that stranding management policy and valorization processes of Sargassum must consider As contamination and that this vigilance must be constantly along the year.
| Type de document: | Article |
|---|---|
| Mots-clés libres: | Survey; metallic trace elements (MTE); Sargassum natans; Sargassum fluitans; arsenic |
| Centre: | Centre Eau Terre Environnement |
| Date de dépôt: | 31 juill. 2024 20:27 |
| Dernière modification: | 31 juill. 2024 20:27 |
| URI: | https://espace.inrs.ca/id/eprint/15507 |
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