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Chemical contamination along the Mediterranean French coast using Posidonia oceanica (L.) Delile above-ground tissues: a multiple trace element study
Luy, Nicolas; Gobert, Sylvie; Sartoretto, Stéphane et al.
2012In Ecological Indicators, 18, p. 269-277
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Keywords :
Trace element; Posidonia oceanica
Abstract :
[en] Levels of Be, Al, V, Mn, Co, As, Se, Mo, Ag, Sn, Sb, Bi as well as of Cr, Fe, Ni, Cu, Zn, Cd and Pb in Posidonia oceanica (L.) Delile from the Mediterranean French coast were analysed using DRC ICP-MS. The first twelve elements have not been well studied and can be considered to be potential pollutants as a result of potentially increased levels resulting from anthropogenic activities. Spatial variation and/or compartmentalization were found for all trace elements. Except for Al, Cr, Fe, Cu and Ag, most trace elements were preferentially accumulated in photosynthetic tissues, suggesting uptake from the water column. Moreover, for Be, V, Mn, Co, Ni, As, Mo, Sb, Sn and Pb, adult leaves had higher levels than intermediate leaves, suggesting low kinetics of accumulation. Levels in the third intermediate leaf were representative of the average levels of the integral shoot, and thus can be used alone in chemical biomonitoring. For most of the twelve little-studied trace elements, the background levels of the northwestern Mediterranean Sea can be measured, and their spatial variation can be related to anthropogenic activities. Levels of the seven widely studied trace elements seem to decrease or stabilize over time, probably due to their reduced anthropogenic use. These observations show that P. oceanica is a sensitive bioindicator for the monitoring of chemical contamination of a large number of trace elements.
Research center :
Laboratoire d'Océanologie
Disciplines :
Aquatic sciences & oceanology
Author, co-author :
Luy, Nicolas
Gobert, Sylvie  ;  Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Océanologie
Sartoretto, Stéphane
Biondo, Renzo ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Océanologie
Bouquegneau, Jean-Marie ;  Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Océanologie
Richir, Jonathan  ;  Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Océanologie
Language :
English
Title :
Chemical contamination along the Mediterranean French coast using Posidonia oceanica (L.) Delile above-ground tissues: a multiple trace element study
Publication date :
2012
Journal title :
Ecological Indicators
ISSN :
1470-160X
eISSN :
1872-7034
Publisher :
Elsevier Science, Amsterdam, Netherlands
Volume :
18
Pages :
269-277
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
PhD thesis. Coastal pollution of the Mediterranean and extension of its biomonitoring to trace elements of emerging concern
Funders :
FWB - Fédération Wallonie-Bruxelles [BE]
Commentary :
En collaboration avec STARESO
Available on ORBi :
since 08 February 2012

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