How to assess trace elements bioavailability for benthic organisms in lowly to moderately contaminated coastal sediments? - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Marine Pollution Bulletin Année : 2019

How to assess trace elements bioavailability for benthic organisms in lowly to moderately contaminated coastal sediments?

Résumé

The bioavailability of trace elements (As, Cd, Co, Cr, Cu, Hg, Ni, Pb, Zn) in lowly to moderately contaminated coastal sediments from the Berre lagoon, France, was assessed by comparing their potentially bioavailable concentrations and bioaccumulated concentrations in the polychaete Alitta succinea. No linear correlations were observed contrarily to what is generally observed in similar works in areas with highly contaminated sediment. Correlations between trace and major elements (Fe, Ca, S, Mg, P, Al) in Alitta succinea tissues and their distribution in organism tissues show that, in such lowly to moderately contaminated sediments, biological variabilities should be considered. Normalization procedures allow to take into account these variabilities and to identify that sediment contamination is partly involved in the benthic ecosystem degradation of the Berre lagoon. Alitta succinea cannot be used as relevant bioindicator for Zn and Co bioavailability in sediment, since these elements are regulated by this organism.
Fichier principal
Vignette du fichier
Postprint.pdf (2.15 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01987918 , version 1 (22-05-2019)

Licence

Paternité - Pas d'utilisation commerciale - Pas de modification

Identifiants

Citer

Sylvain Rigaud, Jean-Marie Garnier, Xavier Moreau, Laetitia De Jong-Moreau, Nicolas Mayot, et al.. How to assess trace elements bioavailability for benthic organisms in lowly to moderately contaminated coastal sediments?. Marine Pollution Bulletin, 2019, 140, pp.86 - 100. ⟨10.1016/j.marpolbul.2019.01.007⟩. ⟨hal-01987918⟩
196 Consultations
282 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More