Utilisation de la microchimie de l'otolithe pour discriminer les populations de chabots au sein du bassin de la Meuse walonne

peer reviewed ; A recent study revealed the presence of 0+ bullhead (Cottus gobio) in a deeply modified (canalized) stretch of the Belgian River Meuse in Tihange (Huy), in which suitable spawning grounds for bullheads are absent. We suggested that these 0+ bullheads might reveal dispersion from local upstream tributaries. To assess this hypothesis, we used otolith microchemistry to compare element fingerprints between bullheads samples originating from four rivers of the Meuse basin with a sample of bullhead of the River Meuse in Tihange. Some elements detected by ICPMS analysis revealed anthr... Mehr ...