TY - JOUR
T1 - Impacts of tailings of Fundão dam (Brazil) rupture on marine fish
T2 - Metals bioaccumulation and physiological responses
AU - Bevitório, Lorena Ziviani
AU - da Silva, Niumaique Gonçalves
AU - Pirovani, Juliana Castro Monteiro
AU - Marques, Joseane Aparecida
AU - Vieira, Carlos Eduardo Delfino
AU - Zebral, Yuri Dornelles
AU - Damasceno, Eduardo Medeiros
AU - Lopes, Layra Lethicia Rodrigues
AU - de Sant'Ana, Leandro Pirovani
AU - Marube, Liziane Cardoso
AU - da Costa, Simone Rutz
AU - Martins, Camila De Martinez Gaspar
AU - Sandrini, Juliana Zomer
AU - Souza, Marta Marques
AU - Bianchini, Adalto
AU - do Vale-Oliveira, Maysa
N1 - Funding Information:
The authors would like to thank the Rede Rio Doce Mar (RRDM), especially the Annex 1- Ecotoxicology, for the support in collecting and processing the samples; Victor Santos Miranda, for making the map of the study area; and the Renova Foundation for the financial support. A. Bianchini is a research fellow of the Brazilian National Council for Research and Development (CNPq; grant # 307647/2016-1). C. M. G. Martins is a research fellow of the Brazilian National Council for Research and Development (CNPq; grant # 312898/2020-7). M. M. Souza is research fellow of the Brazilian National Council for Research and Development (CNPq; grant # 310806/2017-1).
Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/4/1
Y1 - 2022/4/1
N2 - This study evaluated the impacts of the mining tailings after the rupture of the Fundão dam on fish communities on the Atlantic Ocean southeast coast. Four sample collections were carried out over two years (2018–2020), in seasonal periods. Omnivorous/herbivorous and carnivorous fish were collected for analysis of metal bioaccumulation, multibiomarkers of environmental contamination and histopathology. Metal bioaccumulation was stronger correlated in carnivorous fish in the dry-2018 collection, besides higher activity of antioxidant enzymes, energy metabolism and higher morphological damage; however, there was less oxidative damage and less metallothioneins induction, and these variables were strongly associated with the wet-2020 collection. In a temporal view, it was possible to observe a reduction in metal levels in fish, except in the mouth of the Doce River. These events can be explained by seasonal natural events, which tend the resuspension and boost metal levels, mainly in the mouth region during the rainy season.
AB - This study evaluated the impacts of the mining tailings after the rupture of the Fundão dam on fish communities on the Atlantic Ocean southeast coast. Four sample collections were carried out over two years (2018–2020), in seasonal periods. Omnivorous/herbivorous and carnivorous fish were collected for analysis of metal bioaccumulation, multibiomarkers of environmental contamination and histopathology. Metal bioaccumulation was stronger correlated in carnivorous fish in the dry-2018 collection, besides higher activity of antioxidant enzymes, energy metabolism and higher morphological damage; however, there was less oxidative damage and less metallothioneins induction, and these variables were strongly associated with the wet-2020 collection. In a temporal view, it was possible to observe a reduction in metal levels in fish, except in the mouth of the Doce River. These events can be explained by seasonal natural events, which tend the resuspension and boost metal levels, mainly in the mouth region during the rainy season.
KW - Biomonitoring
KW - Doce River
KW - Environmental health
KW - Mining
KW - Oxidative damage
KW - Risk assessment
UR - http://www.scopus.com/inward/record.url?scp=85126536568&partnerID=8YFLogxK
U2 - 10.1016/j.marpolbul.2022.113511
DO - 10.1016/j.marpolbul.2022.113511
M3 - Article
C2 - 35303634
AN - SCOPUS:85126536568
SN - 0025-326X
VL - 177
JO - Marine Pollution Bulletin
JF - Marine Pollution Bulletin
M1 - 113511
ER -
