Reference : Chemical contamination along the Mediterranean French coast using Posidonia oceanica (L....
Scientific journals : Article
Life sciences : Aquatic sciences & oceanology
http://hdl.handle.net/2268/111311
Chemical contamination along the Mediterranean French coast using Posidonia oceanica (L.) Delile above-ground tissues: a multiple trace element study
English
Luy, Nicolas [> >]
Gobert, Sylvie mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Océanologie >]
Sartoretto, Stéphane [> >]
Biondo, Renzo mailto [Université de Liège > Département de Biologie, Ecologie et Evolution > Océanologie >]
Bouquegneau, Jean-Marie [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Océanologie >]
Richir, Jonathan mailto [Université de Liège - ULg > Département des sciences et gestion de l'environnement > Océanologie >]
2012
Ecological Indicators
Elsevier Science
18
269-277
Yes
International
1470-160X
Amsterdam
The Netherlands
[en] Trace element ; Posidonia oceanica
[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.
Laboratoire d'Océanologie
Communauté française de Belgique - CfB
PhD thesis. Coastal pollution of the Mediterranean and extension of its biomonitoring to trace elements of emerging concern
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/111311
http://www.sciencedirect.com/science/article/pii/S1470160X11003700
En collaboration avec STARESO

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