Accumulation and potential sources of lead in marine organisms from coastal ecosystems of the Chilean Patagonia and Antarctic Peninsula area

Winfred Espejo, Janeide de A. Padilha, Rodrigo A. Gonçalves, Paulo R. Dorneles, Ricardo Barra, Douglas Oliveira, Olaf Malm, Gustavo Chiang, José E. Celis

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Environmental concentrations of Pb have been increased due to anthropogenic activities, which have provoked the released of this element to the environment in large amounts. To understand how Pb behaves in remote southern marine ecosystems, we measured Pb concentrations and isotope ratios in biota from coastal marine ecosystems of the Chilean Patagonia and the Antarctic Peninsula area. Lead concentrations in the aquatic organisms ranged from 0.02 to 1.19 mg kg −1 d.w. In Patagonia, higher Pb levels were found in fish than in invertebrates (crab, shrimp, porifera, limpet and shellfish). In comparison with the baseline reference values from other parts of the world, fishes exhibited lower Pb levels. The results of Pb isotopic compositions indicated that the bioaccumulation of Pb in marine organisms come from different anthropogenic sources. These Pb levels might be useful for further studies that allow a deeper evaluation of sources for Pb contamination in these remote ecosystems.

Original languageEnglish
Pages (from-to)60-64
Number of pages5
JournalMarine Pollution Bulletin
DOIs
Publication statusPublished - 1 Mar 2019
Externally publishedYes

Keywords

  • Antarctica
  • Fish
  • Heavy metals
  • Lead isotope
  • Macroinvertebrate
  • Patagonia

ASJC Scopus subject areas

  • Oceanography
  • Aquatic Science
  • Pollution

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    Espejo, W., Padilha, J. D. A., Gonçalves, R. A., Dorneles, P. R., Barra, R., Oliveira, D., Malm, O., Chiang, G., & Celis, J. E. (2019). Accumulation and potential sources of lead in marine organisms from coastal ecosystems of the Chilean Patagonia and Antarctic Peninsula area. Marine Pollution Bulletin, 60-64. https://doi.org/10.1016/j.marpolbul.2019.01.026