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Baseline Assessment of Microplastic Ingestion in the Sea Cucumber Holothuria scabra, Jaeger 1833 from Pujada Bay, Philippines
Summary
Scientists found tiny plastic bits (mostly synthetic rubber fibers) inside nearly 4 in 10 sea cucumbers tested in a bay in the Philippines — a species commonly harvested for food in Southeast Asia. While this study didn't test human health effects directly, it's a reminder that plastic pollution is working its way into seafood, which is one reason researchers are increasingly studying how microplastics might affect people who eat marine animals regularly.
Microplastics are major pollutants in marine ecosystems and pose threats to benthic organisms such as sea cucumbers. This study investigated the occurrence, morphotypes, colors, polymer types, and spatial variation of microplastics ingested by Holothuria scabra in selected sites of Pujada Bay. A total of 90 individuals were examined, with 35 (38.88%) containing microplastics. Thirty-six microplastic particles were recovered, averaging 0.4 particles per individual. Fibers were the dominant morphotype (75%), while blue particles were the most common color (61.11%). FTIR analysis identified synthetic rubber as the most abundant polymer type. The findings provide baseline information on microplastic contamination in H. scabra and highlight its potential as a bioindicator of sediment-associated microplastic pollution in Pujada Bay.