Evidence map›Paper›PMID 41965905›Full record

ArticleScientific reports2026

Microplastic contamination in tadpoles (Anura) in the Brazilian Amazon.

Fabrielle Barbosa de Araújo, Maria Luiza Cunha E Souza-Ferreira, Winston Asafe Santos da Rocha Sepaul, André Mourão Batista, Anderson Zanardi Freitas, Niklaus Ursus Wetter, Rosildo Santos Paiva, Verônica Regina Lobato de Oliveira-Bahia, Rossineide Martins da Rocha

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Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Fabrielle Barbosa de AraújoMultidisciplinary Laboratory of Animal Morphophysiology, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, 66075-110, Brazil. fabrielle.araujo@icb.ufpa.br.ORCID http://orcid.org/0000-0002-0989-7315
Maria Luiza Cunha E Souza-FerreiraEcotoxicology Laboratory, Institute of Biological Sciences, Federal University of Pará, Belém, 66075-110, Pará, Brazil.
Winston Asafe Santos da Rocha SepaulBotany Laboratory, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, 66075-110, Brazil.
André Mourão BatistaNuclear and Energy Research Institute - São Paulo - Brazil, IPEN, São Paulo, SP, 05508- 000, Brazil.
Anderson Zanardi FreitasNuclear and Energy Research Institute - São Paulo - Brazil, IPEN, São Paulo, SP, 05508- 000, Brazil.
Niklaus Ursus WetterNuclear and Energy Research Institute - São Paulo - Brazil, IPEN, São Paulo, SP, 05508- 000, Brazil.
Rosildo Santos PaivaBotany Laboratory, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, 66075-110, Brazil.
Verônica Regina Lobato de Oliveira-BahiaMultidisciplinary Laboratory of Animal Morphophysiology, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, 66075-110, Brazil.
Rossineide Martins da RochaCellular Ultrastructure Laboratory, Institute of Biological Sciences, Federal University of Pará, Belém, Pará, 66075-110, Brazil.

Funding

Conselho Nacional de Desenvolvimento Científico e Tecnológico , Brasil 303140/2022-4Coordenação de Aperfeiçoamento de Pessoal de Nível Superior , Brasil 88887.949785/2024-00Fundação de Amparo à Pesquisa do Estado de São Paulo 2024/07162-0Fundação de Amparo à Pesquisa do Estado de São Paulo 300313/2025-0Fundação de Amparo à Pesquisa do Estado de São Paulo 3085262021-0
6 · The paper itself

Abstract

The potential risks posed by microplastics (MPs) to anuran tadpoles remain poorly studied in the Brazilian Amazon region. Therefore, the aim of this study was to analyze MP contamination in Scinax x-signatus tadpoles at two developmental stages, as well as to characterize and quantify MPs. In addition, we evaluated MP concentrations in surface water and their relationship with environmental characteristics. The study was conducted at the Gunma Ecological Park, Santa Bárbara, Pará, Brazil, across five sampling sites during April 2025. We identified MP contamination in both surface water and tadpoles from all sampled sites. Environmental characteristics showed no direct relationship with MP contamination in tadpoles. However, tadpoles in the pre-metamorphic stage exhibited higher levels of MP contamination than those in the pro-metamorphic stage. A correlation was observed between tadpole body weight (g) and MP concentration, indicating that MP ingestion decreased as body weight increased. This study is the first to report in situ MP contamination in anuran tadpoles from the Amazon region, demonstrating the susceptibility of these organisms to contamination by this pollutant.

Indexed as

AnuraLarvaMicroplasticsWater Pollutants, ChemicalAnimalsBrazilEnvironmental MonitoringMicroplasticsWater Pollutants, ChemicalAmphibiansBiomassMicrohabitatPolymersWater pollution

Identifiers

PMID41965905
PMCPMC13490430

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.