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Sci Total Environ

Title:		"Ecotoxicological impacts of the Fundao dam failure in freshwater fish community: Metal bioaccumulation, biochemical, genetic and histopathological effects"
Author(s):		Vieira CED; Marques JA; da Silva NG; Bevitorio LZ; Zebral YD; Maraschi AC; Costa SR; Costa PG; Damasceno EM; Pirovani JCM; do Vale-Oliveira M; Souza MM; de Martinez Gaspar Martins C; Bianchini A; Sandrini JZ;
Address:		"Programa de Pos-Graduacao em Ciencias Fisiologicas, Instituto de Ciencias Biologicas, Universidade Federal do Rio Grande (FURG), Av. Italia, s/n, Carreiros, Rio Grande, RS, Brazil; Fundacao Espirito-santense de Tecnologia - FEST, Av. Fernando Ferrari, 845 - Goiabeiras, Vitoria, ES, Brazil. Electronic address: carlosuenp@gmail.com. Programa de Pos-Graduacao em Ciencias Fisiologicas, Instituto de Ciencias Biologicas, Universidade Federal do Rio Grande (FURG), Av. Italia, s/n, Carreiros, Rio Grande, RS, Brazil; Fundacao Espirito-santense de Tecnologia - FEST, Av. Fernando Ferrari, 845 - Goiabeiras, Vitoria, ES, Brazil. Fundacao Espirito-santense de Tecnologia - FEST, Av. Fernando Ferrari, 845 - Goiabeiras, Vitoria, ES, Brazil; Centro Universitario Norte do Espirito Santo, Universidade Federal do Espirito Santo - CEUNES/UFES, Rod. Governador Mario Covas, Km 60, Litoraneo, Sao Mateus, ES, Brazil"
Journal Title:		Sci Total Environ
Year:		2022
Volume:		20220329
Issue:
Page Number:		154878 -
DOI:		10.1016/j.scitotenv.2022.154878
ISSN/ISBN:		1879-1026 (Electronic) 0048-9697 (Linking)
Abstract:		"This study investigates the ecotoxicological impacts of the Fundao dam rupture, one of the major environmental disaster that occurred in Brazil and in the world mining industry history, through multi-biomarkers responses and metals bioaccumulation in the fish community of different trophic levels. Specimens of the fishes (omnivorous/herbivorous and carnivorous) were collected along the Doce River channel and its affluent Guandu River, and in different lakes and coastal lagoons adjacent to the river channel, in the Espirito Santo State, Southeast of Brazil. Four sampling collections were carried out over two years (2018 to 2020, during dry and rainy seasons). For both trophic groups the biomarkers responses indicated physiological alterations related to metals exposure and showed strong seasonal variations. The principal component analysis and integrated biomarker response index showed that DNA damage and lipid peroxidation were more associated with dry season 2 (Sep/Oct 2019) and the oxidative damage in proteins, metallothioneins concentration and the activity of superoxide dismutase in the gills showed a greater association with rainy season 2 (Jan/Feb 2020). On the other hand, the enzymes of energy metabolism, catalase and histological damage in the liver and the gills, were more associated with the dry and rainy campaigns of the first year of monitoring. The multivariate approach also suggested a temporal intensification in the bioaccumulation of metals and biological effects in the lacustrine environments. Thus, these results demonstrate that the release of mineral residues from the rupture of the Fundao mine dam affects the health status of the fish from the Doce River basin, provoking metals bioaccumulation, hepatic and branchial damage in the fish besides inducing of enzyme activity related to metal contamination, even four years after the rupture"
Keywords:		"Animals Bioaccumulation Biomarkers Brazil *Environmental Monitoring Fishes Metals/analysis/toxicity Rivers *Water Pollutants, Chemical/analysis/toxicity Doce River Environmental monitoring Lagoons Lakes Multi-biomarkers Oxidative stress;"
Notes:		"MedlineVieira, Carlos Eduardo Delfino Marques, Joseane Aparecida da Silva, Niumaique Goncalves Bevitorio, Lorena Ziviani Zebral, Yuri Dornelles Maraschi, Anieli Cristina Costa, Simone Rutz Costa, Patricia Gomes Damasceno, Eduardo Medeiros Pirovani, Juliana Castro Monteiro do Vale-Oliveira, Maysa Souza, Marta Marques de Martinez Gaspar Martins, Camila Bianchini, Adalto Sandrini, Juliana Zomer eng Netherlands 2022/04/02 Sci Total Environ. 2022 Aug 1; 832:154878. doi: 10.1016/j.scitotenv.2022.154878. Epub 2022 Mar 29"