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Analysis of Microplastic in Holothuria (Mertensiothuria) leucospilota (EchinodermataHolothuroidea) and Sediments from Karachi coast, (Northern Arabian Sea)

International Journal of Environment and Geoinformatics 2023 8 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Quratulan Ahmed, Ayşah Öztekin, Qadeer Mohammad Ali, Levent Bat, Iqra Shaikh

Summary

Researchers examined microplastic contamination in sea cucumbers (Holothuria leucospilota) and coastal sediments from the Karachi coast of Pakistan, finding up to 40 microplastic pieces per individual sea cucumber across gut, respiratory tree, and tentacles, with fibres comprising 99% of particles — indicating widespread contamination in the northern Arabian Sea.

Body Systems
Study Type Environmental

Microplastics are found in all aquatic environments, and they can have several negative impacts on marine life. In this study, the distribution of microplastics in the sediment and in the organs (gut, respiratory tree, and tentacles) of sea cucumber (Holothuria leucospilota) collected from Mubarak Village and Cape Monze on the Karachi coast of Pakistan were investigated. The microplastic amount in different organs of H. leucospilota was found as 15.3-40.45 pieces/individual in the gut, 15.45-23.9 pieces/individual in the respiratory tree, 8.9-9.55 pieces/individual in tentacles. The microplastic amount of sediment samples was 57.40-129.35 pieces/kg. Fibers were the dominant microplastic type, up to 99% of all samples. The results of the present study show that the region is contaminated with microplastics both in biota and in sediments.

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