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Estimation of bottom microplastic flux in the Indonesian seas
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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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Microplastics Patch Based on HydrodynamicModeling in The North Indramayu, Java Sea
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Hydrodynamic modeling was used to track microplastic transport in the Java Sea off North Indramayu, Indonesia, predicting accumulation zones influenced by tidal currents and seasonal winds. The study provides a modeling framework for understanding microplastic distribution in Indonesian coastal waters, which receive high plastic inputs from land.
Modeling the fate of microplastics in the Sengkarang Estuary, Pekalongan City, Central Java, Indonesia
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Researchers measured microplastic concentrations in water and sediment at the mouth of the Sengkarang River in Indonesia and built a hydrodynamic model to track how tidal currents, wind, and river flow distribute the particles. Microplastics were highest in coastal waters and mangrove sediments, with tides and currents driving horizontal transport and concentrating particles in biologically sensitive habitats. The modeling approach offers a practical framework for predicting where microplastics accumulate and informing pollution management in river-to-sea systems.
Microplastics in the tropical Northwestern Pacific Ocean and the Indonesian seas
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Researchers measured microplastic abundance in the tropical Northwestern Pacific and Indonesian seas, finding very low concentrations in open-ocean currents but an order of magnitude higher levels in the Indonesian straits due to river runoff and current convergence patterns.
Numerical Simulation of River-Borne Debris Trajectories and Dispersion Patterns in Lamong Bay, Indonesia
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Scientists used computer modeling to track how plastic waste moves through Lamong Bay in Indonesia, finding that ocean currents and seasonal wind patterns push floating plastic debris toward river mouths and different parts of the bay depending on the time of year. This matters because that plastic breaks down into microplastics that can enter the food chain through fish and shellfish harvested from these waters, and this kind of pollution-tracking research helps identify where cleanup efforts would have the biggest impact.
The Movement of Plastic Marine Debris in Indonesian Seas using A Trajectory Model
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This Indonesian study used a Lagrangian trajectory model to simulate the transport of plastic marine debris in Indonesian waters, driven by ocean current data. The modeling revealed characteristic movement patterns of floating plastic waste within the Indonesian archipelago and toward surrounding ocean regions.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.