Article 4
Micro-pollutant content in Anguilla anguilla glass eels and relationship with migratory behaviour
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S. Bureau Du Colombier 1,2*, G. Bareille 3, V. Bolliet 1, P. Lambert 2, A. Bardonnet1
1Station d’Hydrobiologie INRA, UMR INRA/UPPA, Quartier Ibarron, 64310 St Pée sur Nivelle, France
2CEMAGREF, Unité Ecosystèmes Estuariens et Poissons Migrateurs Amphihalins, 50 avenue de Verdun, 33612 Cestas cedex, France
3CURS, LCABIE UMR 5034, Hélioparc Pau-Pyrénées, 2 avenue du Président Angot, 64053 Pau cedex 09, France
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Abstract. – The concentrations of ten trace elements (barium, cadmium, cobalt, copper, lead, manganese, nickel, strontium, vanadium and zinc) were determined in the whole-body of glass eels caught in the Adour estuary, and exhibiting different levels of activity in laboratory. Glass eels that become “active” in response to a decrease in light intensity in flume present significantly lower values than those remaining buried in the substratum for Pb (p = 0.010) and Zn (p = 0.049). Results are discussed in relation to migratory behaviour.
