Assessment of ichthyofauna in the port region of São Luís, ecological characterization, fishing and microplastic contamination

Evaluation of microplastic in the digestive tract of fish species in the vicinity of the Itaqui Port Complex, São Luís – MA

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Researchers evaluated microplastic content in the digestive tracts of fish species collected in the vicinity of the Itaqui Port Complex in São Luís, Maranhão, Brazil. The study characterised microplastic presence and quantity in fish from a commercially and industrially active coastal area, contributing to the understanding of microplastic contamination in South American estuarine fish communities.

Ecological and Seasonal Patterns of Microplastic Ingestion in Fish Near a Port Region in the Brazilian Amazon

Influence of biological, ecological, and anthropogenic factors on microplastic contamination in coastal fishes from Southeastern Brazil

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Researchers analyzed four commercially important fish species from two bays of contrasting human impact in southeastern Brazil, finding microplastics in 83.1% of individuals with blue microfibers predominating, and determined that anthropogenic pressure and summer seasonality — not habitat type or body size — were the strongest predictors of contamination levels.

Ingestão e efeitos morfofisiológicos dos microplásticos em espécies de peixes da Amazônia Central

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This Brazilian thesis investigates microplastic ingestion and its effects on fish from the Amazon basin, one of the world's most biodiverse freshwater systems. Given that aquatic organisms in even remote areas are exposed to microplastics, the research highlights risks to Amazon fish diversity and the potential for microplastics to disrupt aquatic food webs in previously pristine ecosystems.

Microplastic contamination in demersal and pelagic fish from two differently anthropized bays on the south coast of Rio de Janeiro, Brazil

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Researchers investigated microplastic contamination in demersal and pelagic fish from two bays with differing levels of human impact on the south coast of Rio de Janeiro, Brazil. The study compared microplastic occurrence across fish species and sampling sites to assess how anthropisation influences microplastic exposure in coastal fish populations.