Environmental assessment of Neotropical streams using fish as bioindicators: a multibiomarker and integrated approach
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NEOTROPICAL STREAMS IN CHANGING LANDSCAPES
Environmental assessment of Neotropical streams using fish as bioindicators: a multibiomarker and integrated approach Ne´dia de Castilhos Ghisi . Crislei Larentis . Elton Celton de Oliveira . Mayara Pereira Neves . Arielli Giachini Zavaski . Aliciane de Almeida Roque . Catia Cappelli Wachtel . Ana Paula da Silva . Emanuele Barreto Stange de Lima . Giovanni de Oliveira Nagasawa Costa . Joao Paulo de Arruda Amorim . Ciro Alberto de Oliveira Ribeiro . Rosilene Luciana Delariva
Received: 30 January 2020 / Revised: 2 October 2020 / Accepted: 1 November 2020 Ó Springer Nature Switzerland AG 2020
Abstract Freshwater ecosystems are among the most threatened habitats on Earth, due mainly to anthropogenic pollutants made up of complex mixtures. The Iguac¸u River is world famous for the Iguac¸u Falls and highlighted by its endemism. Unfortunately, it is considered the second most polluted urban river in Brazil. We aimed to perform an environmental evaluation of Neotropical streams in the Iguac¸u River basin, using a multibiomarker approach from a land use and landscape perspective. A set of biomarkers in the fish Psalidodon bifasciatus was analyzed using an Integrated Biomarker Response (IBR) index and Guest editors: David J. Hoeinghaus, Jaquelini O. Zeni, Gabriel L. Breja˜o, Rafael P. Leita˜o & Renata G. Frederico / Neotropical Stream Fish Ecology in a Changing Landscape
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s10750-020-04460-2) contains supplementary material, which is available to authorized users.
correlated with surrounding land uses. Agricultural and urban sites presented more alterations compared to references sites, with elevated protein carbonyls at agricultural sites, increased DNA damage and depletion of glutathione S-transferase at urban sites and decreased glutathione associated with higher histopathological indices at urban and agricultural sites. The IBR shows a consistent increase in negative effects in anthropized areas, with similar values at agricultural and urban sites. The multibiomarker approach, associated with a well-elaborated sample design and a statistical analysis, is an ideal method to obtain more conclusive results about the effects of human activities, revealing the effective result of exposure in the real world. Keywords Human pressure Landscape metrics Psalidodon bifasciatus Biomonitoring Ecotoxicology
N. de Castilhos Ghisi Programa de Po´s-graduac¸a˜o em Biotecnologia, Universidade Tecnolo´gica Federal do Parana´, Estr. p/Boa Esperanc¸a, km 04 - Zona Rural, Dois Vizinhos, PR CEP 85660-000, Brazil e-mail: [email protected]
E. C. de Oliveira A. de Almeida Roque C. C. Wachtel A. P. da Silva Programa de Po´s-graduac¸a˜o em Agroecossistemas, Universidade Tecnolo´gica Federal do Parana´, Estr. p/Boa Esperanc¸a, km 04 - Zona Rural, Dois Vizinhos, PR CEP 85660-000, Brazil e-mail: [email protected]
C. Larentis Programa de Po´
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