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Microplastic contamination in bivalves: First assessment in three coastal lagoons of the colombian caribbean, south america

Zenodo (CERN European Organization for Nuclear Research) 2024
Victoria A. Arana, Adriana H. R. Santos, Lindys Miranda, Jonathan Ayala, Jairo Medina

Summary

Researchers conducted the first assessment of microplastic contamination in bivalves from three coastal lagoons, examining filter-feeding mollusks that concentrate suspended particles from surrounding waters. Microplastics were detected in bivalve tissues across all sites, establishing baseline contamination levels in these coastal ecosystems.

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Microplastics (MPs) have been detected throughout the water column, in sublittoral sediments, and on beaches worldwide. Due to their similar size to sediments and suspended particles, MPs are often consumed by filter-feeding organisms that inhabit water bodies, such as certain species of bivalves. This consumption becomes a route of human exposure to MPs. In this study, MPs were analyzed and detected in 174 of 288 bivalve samples from three coastal lagoons in the Colombian Caribbean region, South America, during two seasons. The average abundance of MPs in bivalves was 1.83 (± 4.02) MPs per individual, with a frequency of occurrence of 62 Also see: https://micro2024.sciencesconf.org/559151/document

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