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61,005 resultsShowing papers similar to Underestimated Microplastic Pollution Derived from Fishery Activities and “Hidden” in Deep Sediment
ClearMicroplastic pollution in deep-sea sediments
Researchers analyzed deep-sea sediment cores and found microplastics present at depth, providing early evidence that deep-sea sediments globally accumulate microplastic pollution far from coastlines and at the seafloor.
Comparison of Microplastic abundance in varying depths of deep-sea sediments, Bay of Bengal
Researchers measured microplastic concentrations in deep-sea sediment samples from the Bay of Bengal at depths of 225 to 1,070 meters, finding the highest concentrations at intermediate depths. The findings add to evidence that microplastics have penetrated into deep-sea environments far from the surface.
Ocean current modulation of the spatial distribution of microplastics in the surface sediments of the Beibu Gulf, China
Researchers conducted a large-scale survey of microplastics in seafloor sediments of the Beibu Gulf in China and found that ocean currents play a major role in where microplastics accumulate. The study provides important data on how water circulation patterns transport and concentrate microplastic pollution in coastal marine environments.
Occurrence of Microplastic Pollution in the Beibu Gulf, the Northern South China Sea
Researchers found microplastics in both surface water (0.67 items/m3) and sediment (4.33 items/kg dry weight) of the Beibu Gulf in the northern South China Sea, with polystyrene fragments dominating in seawater and a different polymer composition in sediment. The study characterized microplastic occurrence in a region with intensive fishery activity but relatively less economic development compared to other Chinese coastal areas.
Microplastic pollution in deep-sea sediments and organisms of the Western Pacific Ocean
Researchers collected deep-sea sediment and organism samples from multiple sites in the western Pacific Ocean and found microplastics at all locations sampled, with depth, distance from land, and current patterns influencing accumulation, confirming the western Pacific deep sea as a significant microplastic sink.
Abundant small microplastics hidden in water columns of the Yellow Sea and East China Sea: Distribution, transportation and potential risk
Researchers discovered abundant small microplastics (under 100 micrometers) hidden beneath the surface of the Yellow Sea and East China Sea, at concentrations far higher than previously reported surface counts. The study suggests that conventional surface sampling methods may significantly underestimate the true extent of marine microplastic pollution, particularly for smaller particles.
Plastic pollution in deep seafloor of the South China Sea
Researchers documented the abundance, distribution, and transport of plastics in the South China Sea using over 100 manned submersible dives combined with video analysis, finding that large plastics concentrate in canyon geomorphological units while microplastics predominate in coastal sediments via distinct transport mechanisms.
Microplastic prevalence in marine fish from onshore Beibu Gulf, South China Sea
Researchers examined 271 fish across 32 species from the Beibu Gulf and found microplastics in the majority of samples, with fibers being the most common type and abundance varying by species, feeding habits, and habitat.
Distribution and sources of microplastics in the Beibu Gulf using in-situ filtration technique
Researchers used in-situ filtration to characterize microplastic distribution in the Beibu Gulf, finding an average of 0.25 items per cubic meter dominated by fibers and cellulose, with land-based inputs from textiles, packaging, fisheries, and mariculture as dominant sources.
Fate, source, and ecological risk of microplastic in the surface sediment of the Beibu Gulf, the Northern South China sea
Researchers surveyed microplastic contamination in surface sediments across the Beibu Gulf in the northern South China Sea. They found microplastic levels ranging from about 13 to 252 particles per kilogram of sediment, with the highest concentrations near estuaries influenced by coastal currents, and fibers from household and textile products being the dominant form. The study's risk assessment indicated that some areas face extremely high ecological risk from microplastic pollution, underscoring the need for measures to reduce human-caused contamination.
The deep sea is a major sink for microplastic debris
Researchers analyzed deep-sea sediments from the Atlantic, Mediterranean, and Indian Ocean and found microplastic fibers up to 4 orders of magnitude more concentrated than at the contaminated sea surface, identifying the deep seafloor as a vast and previously unknown repository of the world's 'missing' plastic.
Unveiling the deep-sea microplastic Odyssey: Characteristics, distribution, and ecological implications in Pacific Ocean sediments
Researchers investigated microplastic contamination in deep-sea sediments from the Pacific Ocean at depths reaching nearly 7,000 meters. They found microplastics at every sampling site, predominantly polyester and rayon fibers, with the highest concentrations in the Western Pacific. The study highlights that microplastic pollution has reached some of the most remote deep-sea environments on Earth, raising concerns about its ecological impact.
Deep Sea Microplastic Pollution Extends Out to Sediments in the Northeast Atlantic Ocean Margins
Researchers surveyed deep-sea sediments across four areas of the Northeast Atlantic and detected microplastics at 75% of stations sampled, finding no hotspots and no clear correlation with depth or distance from land, demonstrating the widespread extent of deep-sea microplastic contamination.
Microplastics in offshore sediment in the Yellow Sea and East China Sea, China
Microplastics were found in offshore sediment samples from the Southern Yellow Sea and East China Sea, with concentrations and polymer types reflecting both local and distant anthropogenic sources. The study expands the known distribution of seafloor microplastic contamination in China's coastal seas and identifies fishing activities as a likely contributor.
The first report on emerged microplastics in deep-sea sediment: Insights from the Central Indian Ocean Basin
Researchers reported the first detection of emerged (beach-cast) microplastics in deep-sea sediments from an understudied region, characterizing particle types, polymer composition, and likely transport pathways. The findings confirm that even remote deep-sea environments receive microplastic inputs.
First long-term evidence of microplastic pollution in the deep subtropical Northeast Atlantic
Researchers found microplastic particles in all 110 sediment trap samples collected over a 12-year period from 2,000-meter depths in the Northeast Atlantic, establishing the deep ocean as a long-term sink for microplastics with fluxes increasing over time.
Distribution pattern and influencing factors for the microplastics in continental shelf, slope, and deep-sea surface sediments from the South China Sea
Researchers investigated microplastic pollution in surface sediments across the continental shelf, slope, and deep-sea floor of the northern South China Sea. The study found an average abundance of about 131 particles per kilogram, with distribution patterns influenced by ocean currents, water depth, and proximity to river inputs.
Fate of microplastics in deep-sea sediments and its influencing factors: Evidence from the Eastern Indian Ocean
Surface sediments from 26 sites in the deep basin of the Eastern Indian Ocean were analyzed for microplastics, finding concentrations ranging widely and influenced by water depth, distance from land, and ocean current patterns. The study extends deep-sea microplastic monitoring to the Indian Ocean and identifies oceanographic transport as a key control on plastic distribution.
[Characteristics of Microplastic Pollution in Sediment of Silty Coast in Culture Bay].
Microplastic characteristics and depth profiles were analyzed in deep sediments from a silty mudflat near a Haizhou Bay aquaculture area, providing rare data on vertical microplastic distribution in coastal sediment cores.
Microplastic ingestion in deep-sea fish from the South China Sea
Microplastics were found in all deep-sea fish species examined from the northern continental slope of the South China Sea, with fiber shapes predominating, suggesting pervasive contamination even in deep-water ecosystems.
High Abundances of Microplastic Pollution in Deep-Sea Sediments: Evidence from Antarctica and the Southern Ocean
Microplastic pollution was investigated in deep-sea sediments from Antarctic and Southern Ocean regions, finding high abundances that varied among sites. The study confirmed that microplastics are accumulating in the remote Antarctic deep-sea environment, with evidence going back to scientific literature from the 1980s that has accelerated in recent years.
Spatiotemporal distribution, source identification and inventory of microplastics in surface sediments from Sanggou Bay, China
Researchers measured the spatiotemporal distribution of microplastics in surface sediments from Sanggou Bay (an aquaculture area in China) across multiple seasons and identified fishing gear and aquaculture equipment as dominant local sources, estimating total plastic inventory in the bay.
Microplastic pollution in sediments from the Bohai Sea and the Yellow Sea, China
Researchers sampled sediments from the Bohai Sea and Yellow Sea and found widespread microplastic contamination, with fibers and fragments as the dominant forms, and higher concentrations near river mouths and urban coastlines.
Microplastic in the Deep-sea Sediment of Southwestern Sumatran Waters
Researchers found microplastic particles in deep-sea sediments off the coast of southwestern Sumatra, Indonesia — a country that ranks among the world's largest plastic waste producers. The presence of microplastics in deep-sea sediments confirms that plastic particles sink and accumulate even in remote ocean floor environments far from land.