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Organic contamination and multi-biomarker assessment in watersheds of the southern Brazil: an integrated approach using fish from the Astyanax genus.
Zebral, Yuri Dornelles; Righi, Bruna Duarte Pereira; Anni, Iuri Salim Abou; Escarrone, Ana Laura Venquiaruti; Guillante, Tainá; Vieira, Carlos Eduardo Delfino; Costa, Patrícia Gomes; Bianchini, Adalto.
Afiliação
  • Zebral YD; Postgraduate Program in Physiological Sciences, Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, RS, 96203-900, Brazil.
  • Righi BDP; Postgraduate Program in Physiological Sciences, Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, RS, 96203-900, Brazil.
  • Anni ISA; Postgraduate Program in Physiological Sciences, Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, RS, 96203-900, Brazil.
  • Escarrone ALV; Postgraduate Program in Physiological Sciences, Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, RS, 96203-900, Brazil.
  • Guillante T; Postgraduate Program in Physiological Sciences, Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, RS, 96203-900, Brazil.
  • Vieira CED; Postgraduate Program in Physiological Sciences, Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, RS, 96203-900, Brazil.
  • Costa PG; Postgraduate Program in Physiological Sciences, Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, RS, 96203-900, Brazil.
  • Bianchini A; Postgraduate Program in Physiological Sciences, Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, RS, 96203-900, Brazil. adaltobianchini@furg.br.
Environ Sci Pollut Res Int ; 31(21): 30543-30554, 2024 May.
Article em En | MEDLINE | ID: mdl-38607488
ABSTRACT
We aimed to examine the responses of pollution biomarkers in feral fish from Astyanax genus collected at three hydrographic regions in southern Brazil and the capacity of these tools to differentiate between various levels of contamination. To achieve this, levels of organochlorine pesticides (liver), as well as the biomarkers AChE (muscle and brain), TBARS (liver), and EROD (liver) were assessed. Collections were conducted in four municipalities (Alegrete, Caraá, Lavras, and Santa Vitória) during 1 year, encompassing winter and summer. Fish from Alegrete were the most contaminated overall, but animals sampled in Caraá, and Lavras also displayed elevated levels of current-use pesticides. Elevated levels of endosulfans, DDTs, HCHs, and current-use pesticides were accompanied by elevated levels of TBARS in the liver. Conversely, fish from Santa Vitória exhibited the highest levels of PAHs, accompanied by elevated levels of EROD in the liver and reduced levels of AChE in muscle and brain. TBARS proved to be a reliable biomarker for assessing impacts arising from pesticide accumulation, while EROD and AChE served as valuable indicators of impacts resulting from PAHs accumulation. Ultimately, the results obtained in this study demonstrate the reliable use of the proposed biomarkers for tracking biological impacts stemming from aquatic pollution using feral Astyanax as biomonitoring species.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Limite: Animals País/Região como assunto: America do sul / Brasil Idioma: En Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Limite: Animals País/Região como assunto: America do sul / Brasil Idioma: En Ano de publicação: 2024 Tipo de documento: Article