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Integrated Physiological Biomarkers Responses in Wild Fish Exposed to the Anthropogenic Gradient in the Biobío River, South-Central Chile.
Quiroz-Jara, Mauricio; Casini, Silvia; Fossi, Maria Cristina; Orrego, Rodrigo; Gavilán, Juan F; Barra, Ricardo.
Afiliação
  • Quiroz-Jara M; Department of Aquatic Systems, Faculty of Environmental Sciences and EULA-Chile Centre, University of Concepción, PO Box 160-C, Concepción, Chile. mauquiroz@udec.cl.
  • Casini S; Department of Physical, Earth and Environmental Sciences, Università di Siena, via Pier Andrea Mattioli, 4, Siena, Italy.
  • Fossi MC; Department of Physical, Earth and Environmental Sciences, Università di Siena, via Pier Andrea Mattioli, 4, Siena, Italy.
  • Orrego R; Natural Science Institute Alexander von Humboldt, Aquatic Toxicology Laboratory, Faculty of Marine Sciences and Biological Resources, University of Antofagasta, Av. Universidad de Antofagasta, 02800, Antofagasta, Chile.
  • Gavilán JF; Department of Cellular Biology, Faculty of Biological Science, Universidad of Concepción, PO Box 160-C, Concepción, Chile.
  • Barra R; Department of Aquatic Systems, Faculty of Environmental Sciences and EULA-Chile Centre, University of Concepción, PO Box 160-C, Concepción, Chile.
Environ Manage ; 67(6): 1145-1157, 2021 06.
Article em En | MEDLINE | ID: mdl-33811498
To evaluate the physiological state of the wild fish inhabiting the Biobío River in South-Central Chile, susceptible to the chemical contamination from different sources, biochemical and physiological biomarkers were applied to wild fish Percilia irwini and Trichomycterus areolatus in situ. Fish caught in the Biobío river in low, medium, and high anthropic impacts areas, with different pollution degrees along the river. Ethoxyresorufin O-O deethylase (EROD) activity was evaluated in fish liver. Length, weight, Gonad weight and Liver weight, Physiological Index, and gill and liver histopathology were conducted. Physicochemical parameters (pH, Temperature, Conductivity, and TDS) were measured at each sampling site. The results indicated a deteriorating condition in the biological parameters of both species in a high anthropic zone. Fishes show an increase in physiological indices and EROD liver activity, agreeing with previous studies supporting evidence of reproductive change development as we move downstream the river. Also, an increase in histopathological lesions towards the lower third stretch of the Biobío River. The Integrated Index of Physiological Biomarkers (IPBR) indicated that sites located in the high impact area (P. irwini: BC: 4.09; RC: 3.38; PC: 3.50; SJ: 2.34 and T. areolatus BC: 6.06, PC: 5.37; SJ: 5.42) have the most detrimental environmental quality, compared to reference area. The integrated biomarker analysis demonstrates that the alterations observed are related to the high anthropic activity levels downstream from the sites with the least intervention, demonstrating that the IPBR used is a complementary tool for studies of the Environmental Effects Monitoring approach.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Monitoramento Ambiental Limite: Animals País/Região como assunto: America do sul / Chile Idioma: En Revista: Environ Manage Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Chile País de publicação: Estados Unidos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Monitoramento Ambiental Limite: Animals País/Região como assunto: America do sul / Chile Idioma: En Revista: Environ Manage Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Chile País de publicação: Estados Unidos