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61,005 resultsShowing papers similar to Microplastic contamination in deep-sea sediments and polymetallic nodules: Insights from the Clarion-Clipperton Zone, Pacific Ocean
ClearMicroplastic 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.
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.
Microplastic 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.
Investigation of Microplastics from Deep-Sea Antarctic and West Coast North American Sediments
Microplastics were identified in deep-sea sediments from both Antarctic and North American Pacific sites, confirming that plastic pollution has reached even the most remote ocean floor environments far from human activity.
Microplastic Contamination of a Benthic Ecosystem in a Hydrothermal Vent
Researchers documented microplastic contamination in a deep-sea hydrothermal vent at the Central Indian Ridge for the first time. The study found microplastics in seawater, sediments, and all six major benthic species examined, with polypropylene, PET, and polystyrene fragments being the most common types, demonstrating that plastic pollution has reached even extreme deep-sea environments.
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.
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.
Microplastics and synthetic particles ingested by deep-sea amphipods in six of the deepest marine ecosystems on Earth
Amphipod crustaceans from six of the deepest Pacific ocean trenches (7,000–10,890 m depth) were examined for microplastic ingestion, with over 72% of the 90 individuals containing at least one microparticle, including fibers, films, and fragments of polyethylene terephthalate and nylon. The study provides the first evidence that microplastic contamination reaches the deepest inhabited parts of the world's oceans.
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.
Microplastic Contamination of a Benthic Ecosystem in a Deep-Sea Hydrothermal Vent
Researchers documented, for the first time, microplastic contamination at a deep-sea hydrothermal vent on the Central Indian Ridge, finding MPs in seawater (2.08 MPs/L), surface sediments (0.57 MP/g), and all six major benthic species sampled, with polypropylene, PET, and polystyrene fragments under 100 micrometers dominating.
Unseen pollutants: Microplastics in deep-sea invertebrates
Microplastics were detected in deep-sea invertebrates from multiple ocean basins, confirming that plastic contamination has penetrated to organisms living in the darkest, most remote zones of the ocean. This finding raises concerns about the ecological and food-web implications of deep-sea microplastic exposure.
Microplastics in the abyss: a first investigation into sediments at 2443-m depth (Toulon, France)
Researchers conducted the first microplastic investigation of deep-sea sediments at 2,443-m depth near Toulon, France, finding microplastics present in abyssal sediments and suggesting that deep-sea environments are not isolated from surface plastic pollution.
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.
Microplastics in the sediments of Terra Nova Bay (Ross Sea, Antarctica)
The first survey of plastic contamination in Antarctic seafloor sediments from Terra Nova Bay found microplastics in all 31 samples collected, with a diverse range of polymer types. This confirms that even remote polar deep-sea sediments are not free of human-derived plastic pollution.
Plastics from Surfaceto Seabed: Vertical Distributionof (Micro)plastic Particles in the North Pacific Ocean
Researchers investigated the vertical distribution of microplastics from surface waters to deep-sea sediments (>5 km) in the North Pacific Ocean, documenting concentrations of 8-2600 items/m3 in the water column and 1100-3200 items/kg in sediments across the North Pacific Subtropical Gyre, Papahanaumokuakea Monument, and a less-polluted reference site.
Plastics from Surface to Seabed: Vertical Distribution of (Micro)plastic Particles in the North Pacific Ocean
Researchers investigated the vertical distribution of microplastics across the water column and deep-sea sediments (>5 km) in the North Pacific Ocean, finding concentrations of 8-2600 items/m3 in the water column and 1100-3200 items/kg in sediments, with distinct patterns across the North Pacific Subtropical Gyre, Papahanaumokuakea Monument, and a less-polluted open ocean site.
Determination of the presence of microplastics in intertidal sediments of deception island, antarctica
Researchers determined the presence and characteristics of microplastics in intertidal sediments of Deception Island, Antarctica, providing evidence that plastic contamination has reached one of Earth's most remote environments and documenting the role of marine sediments as sinks for persistent microplastic pollution.
Plastic microfibre ingestion by deep-sea organisms
Researchers provided the first evidence that microplastics are being ingested and internalized by deep-sea organisms living on the ocean floor. The study found plastic microfibres in multiple deep-water species, demonstrating that microplastic contamination has already reached some of the most remote habitats on Earth.
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.
Low prevalence of microplastic contamination in the bottom sediments and deep-sea waters of the Bransfield strait, Antarctica
Researchers conducted a baseline assessment of microplastic contamination in the deep-sea waters and bottom sediments of the Bransfield Strait in Antarctica. They found a low but measurable prevalence of suspected microplastic particles, predominantly fibers, even in this remote deep-sea environment. The findings confirm that microplastic pollution has reached some of the most isolated marine habitats on Earth.
Weathered microplastics alter deep sea benthic biogeochemistry and organic matter cycling: insights from a microcosm experiment
Weathered (aged) microplastics deposited in deep-sea sediments were found to alter benthic biogeochemical cycles, affecting nitrogen and carbon processing by seafloor microorganisms. The findings show that plastic pollution can disrupt the chemical ecology of even the most remote deep-ocean environments.
Microplastic pollution identified in deep-sea water and ingested by benthic invertebrates in the Rockall Trough, North Atlantic Ocean
Researchers identified microplastics in deep-sea water samples and found them in the gut contents of benthic invertebrates living on the seafloor — providing evidence that the deep sea is both a sink for microplastics and that deep-sea organisms are ingesting them. The study raises concerns about contamination reaching even the most remote marine ecosystems.
Microplastic occurrence in the deep-sea sediment of the Indonesian Throughflow, Banggai Sea
This first investigation of microplastics in deep-sea sediments in Indonesian waters found microplastic contamination in the Banggai Sea, with abundance strongly decreasing with distance from the coast and PET and PE identified as dominant polymer types.
Does the microplastics ingestion patterns and polymer composition vary across the oceanic zones? A case study from the Indian coast
Researchers examined microplastic ingestion in 27 species of deep-sea fish from the Central Indian Ocean and found contamination in 19 of them, with PET being the most common polymer. The study suggests that feeding behavior, rather than habitat depth or trophic level, is the primary factor influencing how much microplastic deep-sea fish ingest, and proposes these fish could serve as indicators for monitoring deep-sea plastic pollution.