First record of microplastic contamination in adult endemic amazonian anuran species
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Scientific Reports
Resumo
The microplastics (MPs), due to their high dispersion and bioaccumulation rates, have been identified
in various animal groups, such as anuran amphibians during both larval and adult stages. However,
current studies on adult anuran amphibians focus on assessing only one exposure route, the digestive
system, while other routes remain underestimated. Therefore, this present study aimed to evaluate
the degree of contamination in the digestive, respiratory, and integumentary systems, in situ, of two
endemic Amazonian adult anuran species (Physalaemus ephippifer and Boana multifasciata). From this,
we identified and characterized microplastic particles for each exposure route, assessed the effects of
morphometric measures on the total MP contamination level and in the gastrointestinal tract (GIT).
Additionally, we determined different contamination indices and how they vary according to species
and systems. Based on our data, the digestive and integumentary exposure routes showed the highest
contamination levels for both species. Additionally, variations in MP contamination levels indicated
that P. ephippifer had a higher level of MP contamination. Thus, this study provides the first evidence of
microplastic exposure through respiratory and integumentary routes in adult anurans in situ, and it is
the first to identify MP contamination in terrestrial biomonitors in the Amazon.
Como referenciar
SOUZA-FERREIRA, MARIA L.C. e; REIS, ADRIAN J.O. dos; FERREIRA, ERIKSON B.L.; DIPOLD, JESSICA; FREITAS, ANDERSON Z.; WETTER, NIKLAUS U.; OLIVEIRA-BAHIA, VERÔNICA R.L. de; VIEIRA, THIAGO B. First record of microplastic contamination in adult endemic amazonian anuran species. Scientific Reports, v. 15, n. 1, p. 1-12, 2025. DOI: 10.1038/s41598-025-86434-9. Disponível em: https://repositorio.ipen.br/handle/123456789/49869. Acesso em: 14 May 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.