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61,005 resultsShowing papers similar to Small microplastics and other components of microlitter in Arctic invertebrates (Amphipods)
ClearSmall microplastics and other components of microlitter in Arctic invertebrates (Amphipods)
Researchers investigated small microplastics (less than 100 µm) and other microlitter components in Arctic amphipod invertebrates, addressing a gap in knowledge since most Arctic microplastics research has focused on particles larger than 100 µm. The study characterised the presence and composition of these smaller particles within this ecologically important invertebrate group.
Small microplastics and other components ofmicrolitter in Arctic invertebrates (Amphipods)
Researchers investigated small microplastics (under 100 micrometers) and other microlitter components — including plastic additives and non-plastic fibers — in Arctic amphipod crustaceans to evaluate their potential as bioindicators of plastic pollution in polar environments. The study quantified and identified small microplastics and microlitter in Arctic amphipod species, noting that their small size facilitates atmospheric and oceanic transport far from pollution sources and easy ingestion by organisms entering the trophic web.
Arctic Amphipods as bioindicators of plastic pollution: identification and simultaneous quantification of small microplastics and microlitter (< 100 μm)
Researchers investigated Arctic amphipods as bioindicators of plastic pollution by simultaneously identifying and quantifying small microplastics, plastic additives, and other microlitter components below 100 micrometers in body tissues, focusing on the size fractions most likely to enter the trophic web.
Small Microplastics: A yet Unknown Threat in the Svalbard (Norway) Region
Researchers investigated the presence of small microplastics and nanoplastics in the Arctic Svalbard region, where climate change is accelerating ice melt and increasing shipping activity. Initial analyses of amphipods collected near Ny-Alesund confirmed the presence of small microplastics in Arctic marine organisms. The study outlines ongoing research efforts to understand how these tiny plastic particles move through polar food webs and affect both local ecosystems and human health.
Microlitter in arctic marine benthic food chains and potential effects on sediment dwelling fauna
Researchers measured microlitter concentrations in arctic marine sediments and biota at Svalbard and Greenland, finding higher concentrations and greater diversity of plastic types near human settlements and sites of abandoned fishing gear. Laboratory experiments on an arctic amphipod showed physiological effects — including altered feeding rates and respiration — only at concentrations much higher than those currently found in the field.
Abundance and characterization of microplastics in amphipods from the Japanese coastal environment
Researchers found high levels of microplastic ingestion in coastal amphipods from Japan, with up to 76 particles per individual and 83% of particles smaller than 90 µm, predominantly polyethylene, raising concerns about microplastic transfer through coastal food webs.
Microplastic ingestion in zooplankton from the Fram Strait in the Arctic
Researchers found that all five zooplankton species examined in the Arctic Fram Strait had ingested microplastics, with polyester and polyamide fibers being the most common types, confirming widespread microplastic contamination at the base of the Arctic food web.
Microplastic contamination in benthic organisms from the Arctic and sub-Arctic regions
This study provided the first data on microplastic contamination in benthic invertebrates from Arctic and sub-Arctic regions, finding microplastics in multiple species including sea cucumbers and polychaete worms at concentrations comparable to lower-latitude studies. The results indicate that bottom-dwelling Arctic fauna are exposed to microplastic pollution, potentially transported from lower latitudes by ocean currents.
First evidence of microplastics ingestion in benthic amphipods from Svalbard
Researchers provided the first evidence of microplastic ingestion by benthic amphipods (Gammarus setosus) from Svalbard in natural conditions, identifying plastic particles via Nile Red staining and micro FT-IR spectroscopy and noting potential for trophic transfer in Arctic food webs.
Microplastics in Arctic polar waters: the first reported values of particles in surface and sub-surface samples
Researchers reported some of the first measured values for microplastic particles in Arctic polar waters, finding contamination even in these remote high-latitude waters and raising questions about long-range transport mechanisms.
Microplastic pollution in the Arctic Ocean: Assessing ingestion and potential health effects in Calanus and Neocalanus copepods
This review assessed the extent of microplastic ingestion by Arctic marine organisms and evaluated the potential risks to both wildlife and human consumers of Arctic seafood. The authors found evidence of microplastic ingestion across multiple species and called for more research on long-term ecological impacts in polar environments.
Spatial distribution of small microplastics in the Norwegian Coastal Current
Researchers mapped microplastic concentrations at multiple depths along the Norwegian Coastal Current, a major pathway carrying pollutants toward the Arctic. They found that the smallest microplastics, those under 50 micrometers, made up over 80% of all detected particles and were found at concentrations up to four orders of magnitude higher than larger microplastics, underscoring the importance of measuring these very small particles in ocean monitoring.
Investigating the sources, transfer, and fate of microplastics in the Arctic marine environment
This review synthesizes current knowledge on microplastic sources, transport pathways, and fate in Arctic marine environments, examining how MPs present in sea ice, water columns, and marine biota reflect both local and long-range transport from lower latitudes.
Quantifying microplastics concentration of invertebrates from three Antarctic fjords
Researchers quantified microplastic contamination in marine invertebrates from three Antarctic fjords created by retreating glaciers. They found microplastics present in organisms even in these remote polar environments, with contamination levels varying between species and locations. The study adds to growing evidence that microplastic pollution has reached some of the most isolated ecosystems on Earth.
Microplastic pellets in Arctic marine sediments: a common source or a common process?
Researchers examined microplastic pellet contamination in Arctic marine sediments to understand whether their presence reflects common sources or shared degradation processes. The study found that microplastics are accumulating on the Arctic seafloor, contributing to growing evidence that plastic pollution reaches even the most remote ocean environments.
Microplastics in landfast sea ice of Alaskan Arctic: Characteristics and potential sources
Microplastics were found at concentrations averaging 221 particles per liter in Alaskan Arctic landfast sea ice, with over 80% of particles smaller than 50 micrometers — small enough to be readily ingested by marine organisms. The sea ice near Barrow acts as a seasonal reservoir that traps microplastics from Pacific Ocean currents and then releases them when the ice melts, exposing Arctic marine ecosystems to a pulse of pollution each spring. The dominance of polyamide and polyethylene points to fishing gear and packaging waste as primary sources.
Microplastics in three typical benthic species from the Arctic: Occurrence, characteristics, sources, and environmental implications
Researchers found microplastics in three benthic species from the Chukchi Sea in the Arctic, with polyester, nylon, and PET as the top three polymer types in sea anemones, deposit-feeding starfish, and snow crabs. Microplastic abundances were significantly higher than those from the Bering Sea but lower than those from other global regions, pointing to long-range transport as a source of Arctic contamination.
Mussels (Mytilus spp.) in Svalbard contain microplastic particles in tissues: Implications for monitoring
Researchers found microplastic particles in the tissues of blue mussels collected from intertidal zones in Arctic Svalbard, detecting 148 particles per sample on average and identifying polyethylene and polystyrene as dominant polymers, with implications for Arctic food web monitoring.
Fish species, habitat, and capture location outweigh fish mass as drivers of microplastic pollution in Canadian Arctic fishes
Researchers investigated microplastic contamination in 435 stomachs and gastrointestinal tracts of seven freshwater fish species from the Canadian Arctic. The study found that fish species, habitat type, and capture location were more important drivers of microplastic levels than fish size, with demersal species and those near larger human populations containing significantly more microplastics.
First Evidence of Microplastic Contamination in Antarctic Fish (Actinopterygii, Perciformes)
This study provides the first evidence of microplastic contamination in Antarctic fish, finding moderate levels of microplastics in species from the Amundsen and Ross Seas with differences in polymer type and size linked to regional human activities.
Microplastic and other anthropogenic microparticles in Arctic char (Salvelinus alpinus) and their coastal habitat: A first-look at a central Canadian Arctic commercial fishery
Arctic char and coastal habitat samples from a commercial fishery in the central Canadian Arctic were assessed for microplastic and anthropogenic particle contamination, representing some of the first data on microplastics in Arctic salmonids from this region.
Comparative analysis of microplastic pollution in commercially relevant seafood across different geographical regions
Researchers analyzed microplastic pollution in commercially important seafood species, characterizing particle morphology and polymer composition across species. The study found microplastics in all species sampled, with differences in contamination levels linked to feeding ecology and habitat.
The problem of Microplastic Accumulation in the Arctic Ocean
This review highlights the emerging threat of microplastic accumulation in the rapidly warming Arctic Ocean, documenting MP presence in seawater, sediments, sea ice, and marine organisms and identifying the Arctic as a convergence zone for plastic pollution transported by ocean currents.
Microplastics in the Arctic: A case study with sub-surface water and fish samples off Northeast Greenland
Researchers investigated microplastic contamination in sub-surface water and two mid-trophic level fish species off Northeast Greenland, finding synthetic particles in both water samples and fish stomachs. The study demonstrates that even remote Arctic ecosystems are not free from microplastic pollution, with fibers being the most commonly detected particle type.