Realistic environmental exposure to secondary PET microplastics induces biochemical responses in freshwater amphipod Hyalella azteca

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Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorQueiroz, Lucas Gonçalves-
Autor(es): dc.creatorRani-Borges, Bárbara-
Autor(es): dc.creatorPrado, Caio César Achiles-
Autor(es): dc.creatorMoraes, Beatriz Rocha de-
Autor(es): dc.creatorAndo, Rômulo Augusto-
Autor(es): dc.creatorPaiva, Teresa Cristina Brazil de-
Autor(es): dc.creatorPompêo, Marcelo-
Data de aceite: dc.date.accessioned2025-08-21T19:27:59Z-
Data de disponibilização: dc.date.available2025-08-21T19:27:59Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2022-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1080/02757540.2022.2162046-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/246577-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/246577-
Descrição: dc.descriptionFreshwater environments are especially susceptible to microplastic contamination due to their proximity to urbanised and industrial areas. Also, there is a lack of information about the effects of this pollutant on freshwaters making it difficult the conservation of these environments. Benthic species, such as the freshwater amphipod Hyalella azteca, have been superficially studied so far for evaluation of microplastic pollution. In the present study, we analyzed whether polyethylene terephthalate (PET) microplastics could lead to reduced survival of H. azteca or changes in biochemical markers (SOD, CAT, MDA, and GST) at environmentally relevant concentrations (60 and 600 particles) after 7 d of exposure. The results showed that there was no significant mortality at any of the concentrations tested. The enzyme CAT showed no variation compared to the control group at any of the concentrations. SOD, MDA, and GST were statistically different (p < 0.05). Our study demonstrated that PET MP did not affect the survival of H. azteca at environmentally relevant concentrations. However, changes in biomarkers of oxidative stress may be detected at low level of exposure (60 particles). Although survival is not affected, the macrobenthic invertebrate community may be under threat in environments where there is PET microplastic pollution.-
Descrição: dc.descriptionDepartment of Ecology Institute of Biosciences University of São Paulo USP-
Descrição: dc.descriptionInstitute of Science and Technology São Paulo State University UNESP-
Descrição: dc.descriptionDepartment of Biotechnology School of Engineering University of São Paulo USP, Lorena-
Descrição: dc.descriptionDepartment of Fundamental Chemistry Institute of Chemistry University of São Paulo-
Descrição: dc.descriptionDepartment of Environmental Sciences School of Engineering University of São Paulo USP, Lorena-
Descrição: dc.descriptionInstitute of Science and Technology São Paulo State University UNESP-
Formato: dc.format288-301-
Idioma: dc.languageen-
Relação: dc.relationChemistry and Ecology-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAmphipoda-
Palavras-chave: dc.subjectbiomarkers-
Palavras-chave: dc.subjectinvertebrate-
Palavras-chave: dc.subjectoxidative stress-
Palavras-chave: dc.subjectpolyethylene terephthalate-
Título: dc.titleRealistic environmental exposure to secondary PET microplastics induces biochemical responses in freshwater amphipod Hyalella azteca-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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