Marine shrimps as biomonitors of the Fundão (Brazil) mine dam disaster: A multi-biomarker approach

Anieli C. Maraschi, Joseane A. Marques, Simone R. Costa, Carlos E.D. Vieira, Márcio A. Geihs, Patrícia G. Costa, Camila de M.G. Martins, Juliana Z. Sandrini, Adalto Bianchini, Marta M. Souza

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


The disruption of the Fundão dam released 43 million m3 of mine tailings into the Doce River until it flowed into the ocean through the estuary. The mine tailing changed the composition of metals in water and sediment, creating a challenging scenario for the local biota. We used multivariate analyzes and the integrated biomarker response index (IBR) to assess the impact of mine tailings on the bioaccumulation profile (As, Cd, Cr, Cu, Fe, Mn, Pb and Zn) as well as the biomarkers response in gills, hepatopancreas and muscle of shrimps sampled from different sectors during two dry seasons (dry1 and dry2) (Sep/Oct 2018; 2019) and two wet seasons (wet1 and wet2) (Jan/feb 2019; 2020). There was seasonal and local effect under bioaccumulation and biomarker response revealing that the pattern responses seen in each sector sampled changed according to the season. The greater IBR added to the strong association among the most metals tissue content (Cd, Cr, Cu and Mn) and sectors sampled during dry 1 suggests greater bioavailability of these metals to the environment in this period. Estuarine sectors stand out for high Fe bioavailability, especially during wet1, which seems to be associated with greater metallothionein content in hepatopancreas of shrimps. Native species of marine shrimps proved to be successful indicators of sediment quality besides being sensitive to water contamination by metals. The multi-biomarkers approach added to multivariate analysis supports the temporal and seasonal effects, signalizing the importance of continuous monitoring of the estuarine region to better know about the bioavailability of these metals, mainly Fe, and their long-term effects on the local biota.

Original languageEnglish
Article number119245
JournalEnvironmental Pollution
StatePublished - 15 Jul 2022
Externally publishedYes


  • Bioaccumulation
  • Biomarkers
  • Biomonitoring
  • Integrated biomarker response
  • Metal and metalloid

ASJC Scopus subject areas

  • Pollution
  • Health, Toxicology and Mutagenesis
  • Toxicology


Dive into the research topics of 'Marine shrimps as biomonitors of the Fundão (Brazil) mine dam disaster: A multi-biomarker approach'. Together they form a unique fingerprint.

Cite this