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

Abstract : 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.
Document type :
Journal articles
Complete list of metadatas

Cited literature [58 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01987918
Contributor : Perrine Chaurand <>
Submitted on : Wednesday, May 22, 2019 - 9:51:09 AM
Last modification on : Thursday, September 26, 2019 - 1:23:13 AM

File

Postprint.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : hal-01987918, version 1

Citation

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, Elsevier, 2019, 140, pp.86 - 100. ⟨hal-01987918⟩

Share

Metrics

Record views

114

Files downloads

79