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61,005 resultsShowing papers similar to The correlation between microplastics characteristics and sediment grain size to microplastics accumulation in coral reef sediment in Gede Island, Rembang, Indonesia
ClearMicroplastics as a sedimentary component in reef systems: A case study from the Java Sea
Researchers investigated microplastic distribution in sediments from two tropical atoll reef platforms in Indonesia. The study found that microplastics are a component of reef sediments, with distribution patterns influenced by reef geomorphology and hydrodynamic processes, highlighting the need to better understand how microplastics accumulate in coral reef systems and their potential impacts on reef health.
Assessment of Sediment Grain Size and Its Correlation with Microplastic Accumulation and Characteristics in the Kahayan River, Indonesia
Researchers investigated microplastic accumulation in sediments of the Kahayan River in Indonesia in relation to sediment grain size, finding an average abundance of 7.3 items/kg dry weight. Significant correlations were found between coarse and fine sand grain sizes and microplastic occurrence, suggesting grain size plays a key role in microplastic retention.
Identifikasi Mikroplastik Pada Sedimen di Pulau Perak, Jakarta Indonesia
Researchers identified and characterised microplastics in sediments at Perak Island, Jakarta, Indonesia, examining the shapes, sizes, and composition of plastic particles smaller than 5 mm that accumulate in coastal sediment environments.
The fate of microplastic in marine sedimentary environments: A review and synthesis
A systematic review of 80 papers on microplastics in marine sediments found median concentrations varied widely by sediment environment, with fibers dominating many locations, and showed that sediment grain size and organic carbon content influence microplastic accumulation.
First Evidence of Microplastics Presence in Coralsof Jepara Coastal Waters, Java Sea: A ComparisonAmong Habitats Receiving Different Degreesof Sedimentations
Researchers found microplastics inside coral tissues collected from Jepara coastal waters in the Java Sea — one of the first such reports for Indonesian coral reefs. Corals in areas with higher sedimentation contained more microplastics, suggesting sediment transport plays a role in microplastic accumulation. The findings raise concerns about coral reef health under combined microplastic and sedimentation stress.
Microplastic abundance and its relationship with sediment grain size in seagrass and bare flats of Panjang Island, Banten Bay, Indonesia
Researchers surveying Panjang Island in Indonesia's Banten Bay found microplastics throughout both seagrass and bare sediment areas, with finer-grained sediments accumulating more particles. Seagrass beds appeared to trap more microplastics than bare areas, meaning these critical coastal habitats — already under stress — may concentrate plastic pollution and expose the organisms sheltering in them to higher doses.
Reef‐building corals act as long‐term sink for microplastic
Coral reef structures were shown to act as long-term sinks for microplastics, with microplastics accumulating in reef framework interstices and sediments at higher concentrations than surrounding seawater, potentially contributing to the resolution of the missing plastic problem in ocean budgets.
Microplastic beaching dependence on sediment grain size
Researchers sampled microplastics across a Mediterranean protected beach and found that accumulation is strongly influenced by sediment grain size — fine-grained sands trap more surface microplastics due to lower infiltration capacity — while fiber shape promotes entanglement in sediment pores and proximity to tourism and port activities drives spatial pollution hotspots.
Factors influencing microplastic abundances in the sediments of a seagrass-dominated tropical atoll
Researchers investigated factors controlling microplastic abundance in sediments of a seagrass-dominated tropical atoll. They found that seagrass density, water flow patterns, and proximity to human settlements all influenced microplastic accumulation, with denser seagrass meadows trapping more particles in their sediments. The study raises concerns that microplastic buildup in seagrass ecosystems could threaten the ecological services these habitats provide, including carbon storage and biodiversity support.
Occurrence And Abundance Of Microplastics In Coral Reef Sediment: A Case Study In Sekotong, Lombok-Indonesia
Microplastics were found in coral reef sediments in Sekotong, Lombok, Indonesia, with possible contributions from ocean current transport through the Indonesian Throughflow. The findings highlight that microplastic contamination has reached Indonesia's coral reef ecosystems, which are among the most biodiverse on Earth.
Microplastic Identification and Density In Coastal Sediments of Manado Bay
Researchers identified and quantified microplastics in coastal sediments of Manado Bay, documenting the density and polymer types of plastic particles accumulating in the marine environment from anthropogenic activities.
Spatial distribution of microplastics around an inhabited coral island in the Maldives, Indian Ocean
Researchers investigated microplastic accumulation across fore reef, reef flat, and beach sediment environments surrounding a small inhabited coral island in the Maldives, finding 1,244 individual microplastic pieces across 22 sampling sites. The study reveals that even remote inhabited islands in the Indian Ocean show significant microplastic contamination, with spatial distribution patterns reflecting local hydrodynamics and human activities.
The effect of coral colony morphology, coral surface condition, particle size, and seeding point on the trapping and deposition of microplastics
Scientists used a saltwater flume to study how different coral colony shapes trap microplastics, finding that compact branching corals caught significantly more particles than open-shaped colonies. Larger microplastics were trapped more easily than smaller ones, and the coral's living or dead status did not affect trapping rates. This research shows that coral reefs act as sinks for microplastic pollution, and certain reef types may be especially vulnerable, which matters for the coastal communities that depend on healthy reefs for food and livelihoods.
Exploring Microplastic Interactions with Reef-Building Corals Across Flow Conditions
Researchers examined how reef-building corals interact with microplastics under varying flow conditions, investigating whether active ingestion or passive adhesion dominates microplastic removal and which particle types and sizes are most readily captured by coral structures.
Transport and sedimentation of microplastics by turbidity currents: Dependence on suspended sediment concentration and grain size
Researchers used laboratory experiments to study how turbidity currents, underwater flows of sediment-laden water, transport and deposit microplastics on the ocean floor. They found that higher sediment concentrations carried microplastics farther, and finer sediment grains enhanced transport distances compared to coarser ones. The findings suggest that both the properties of the sediment flow and the shape and density of microplastic particles play important roles in determining where plastics end up in marine sediments.
Microplastic Accumulation in Coral Reef Ecosystems at Peukan Bada District, Aceh Besar
Researchers collected sediment from coral reef sites in Aceh, Indonesia and found microplastics of three types — fibers, films, and fragments — at all locations, with densities ranging from 32 to 68 particles per kilogram. The study found a strong statistical association between microplastic abundance and the health of coral reef cover, suggesting a link between plastic pollution and reef degradation. This provides early evidence that microplastics may be contributing to the decline of coral ecosystems in Indonesian coastal waters.
Habitat-forming species trap microplastics into coastal sediment sinks
A field flume experiment comparing microplastic retention in seagrass, macroalgae, and coral habitats found that hard corals trapped the most particles in their above-ground structure, while sediment was the dominant overall sink — accumulating 1–2 orders of magnitude more than the organisms themselves.
The relation of sediment texture to macro- and microplastic abundance in intertidal zone
Researchers analyzed the relationship between sediment grain size and microplastic accumulation in an intertidal zone, finding that finer-grained sediments tend to accumulate more plastic particles. Understanding this relationship helps identify which coastal areas are at greatest risk from microplastic contamination.
Transport and trapping of microplastics in coral reefs: a physical experimental investigation
Researchers conducted physical experiments in a laboratory channel to study how microplastics are transported and trapped in simulated coral reef structures. Rough reef surfaces increased particle capture compared to flat beds. These findings help explain why coral reefs accumulate microplastics and inform predictions of plastic pollution impacts on biodiverse reef ecosystems.
Microplastic Distribution in Beach Sediments: Comparison Between the North and South Waters of East Java Island, Indonesia
Researchers compared microplastic concentrations in beach sediments on the north (Java Sea) versus south (Indian Ocean) sides of eastern Java Island, Indonesia, finding higher levels on the northern beaches that are closer to major population centers and shipping lanes. Fiber shapes and blue color dominated across all sites, and concentrations ranged from about 55 to 103 particles per kilogram. The study highlights how local population density, coastal morphology, and ocean current patterns together shape where microplastics accumulate on tropical beaches.
The role of oceanographic processes and sedimentological settings on the deposition of microplastics in marine sediment: Icelandic waters
Researchers analyzed microplastics from marine sediment cores collected at eight sites on the Iceland continental shelf, examining how oceanographic processes and sedimentological settings influence the deposition and distribution of microplastic debris on the seafloor.
Occurrence and distribution of microplastics in surface sediments from the Gulf of Thailand
Researchers investigated the distribution and characteristics of microplastics in surface sediments across the Gulf of Thailand, finding an average abundance of 150.4 pieces/kg dry weight with fragment shapes dominating, and observed a correlation between sediment grain size and microplastic content. The results establish baseline contamination data for this Southeast Asian coastal region.
Infiltration Behavior of Microplastic Particles with Different Densities, Sizes, and Shapes—From Glass Spheres to Natural Sediments
Laboratory column experiments showed that microplastic infiltration depth in sediment increases as particle size decreases and sediment grain size increases, with spherical particles penetrating deepest and fibers infiltrating least. The results help define appropriate sampling depths for environmental microplastic monitoring depending on sediment type.
Linking the Tourism Activity to the Occurrence and Distribution of Microplastics
Researchers assessed microplastic abundance, type, and spatial distribution in coastal water, sediments, and fish across three zones of Gili Trawangan, Indonesia, finding that tourism-related activities concentrated microplastics at recreational beaches with concentrations reaching 19.25 particles/L.