Trace metal incorporation in otoliths of black bream (Acanthopagrus butcheri Munro), an indicator of exposure to metal contamination

  • Ranaldi M
  • Gagnon M
  • 51

    Readers

    Mendeley users who have this article in their library.
  • 18

    Citations

    Citations of this article.

Abstract

Otoliths of black bream (Acanthopagrus butcheri) collected from the Swan River Estuary were analysed by Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) to measure concentrations of 14 trace metals. Trace metal concentrations in the otoliths may be related to the environmental exposure history of fish to contamination. The following metal isotopes were investigated: aluminium ((27)Al), calcium ((44)Ca), manganese ((55)Mn), iron ((57)Fe), copper ((65)Cu), zinc ((66)Zn), strontium ((88)Sr), cadmium ((111)Cd), tin ((120)Sn), barium ((138)Ba), mercury ((202)Hg), lead ((208)Pb) and the metalloids arsenic ((75)As, (77)As) and selenium ((82)Se). Significant differences in otolith trace metal composition were found between sampling sites. Lead and (57)Fe were consistently lower in downstream fish relative to upstream fish, while (88)Sr varied with the salinity gradient in the urban estuary. Lead and (57)Fe followed similar patterns within the otoliths, and appeared to provide the best discriminatory power for relating otolith metal concentration to the environmental history of the fish.

Author-supplied keywords

  • Contamination
  • Iron
  • LA-ICP-MS
  • Lead
  • Otolith
  • Strontium

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • Melinda M. Ranaldi

  • Marthe M. Gagnon

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free