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Estimation of bottom microplastic flux in the Indonesian seas

Marine Pollution Bulletin 2024 4 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Mochamad Riza Iskandar, Young‐Gyu Park, Dewi Surinati, Dwiyoga Nugroho, Muhammad Reza Cordova

Summary

Using ocean circulation models and Lagrangian particle tracking, researchers estimated microplastic flux to the seafloor from 68 Indonesian rivers, finding that accumulation concentrates within 50-100 km of major islands. The Karimata Strait, Java Sea, and South Java were identified as the primary accumulation zones within Indonesia's Fisheries Management Areas.

Marine debris, particularly microplastics, is an important environmental problem for Indonesia, impacting vast coastline and diverse marine ecosystems. However, little is known about the microplastics flux to the seafloor in the Indonesian Seas. This study employs HYCOM data and Lagrangian particle tracking model to analyze the distribution of microplastics flux to the seafloor from 68 rivers in Indonesia. Microplastics accumulation can be found in coastal waters near major islands, typically within 50-100 km of the coast. Accumulation regions within the Fisheries Management Area (FMA) in Indonesia are mostly located in Karimata Strait, Java Sea and South Java. This study highlights the importance of understanding sinking particles behavior for effective waste management strategies, as well as for mitigating environmental impacts in Indonesian waters.

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