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61,005 resultsShowing papers similar to Microplastic ingestion and plastic additive detection in pelagic squid and fish: Implications for bioindicators and plastic tracers in open oceanic food webs
ClearMicroplastic intake in epi- and mesopelagic fish and squid species from an oceanic environment (NE Atlantic)
Researchers investigated microplastic ingestion in epi- and mesopelagic fish and squid species from the open NE Atlantic Ocean, documenting contamination in oceanic species that may confuse microplastics with similarly sized and colored planktonic prey.
Microplastic in the stomachs of open-ocean and deep-sea fishes of the North-East Atlantic
Researchers investigated microplastic occurrence in the stomachs of 390 fish from three pelagic and two deep-sea species in the North-East Atlantic, comparing plastic ingestion between fish occupying contrasting ocean compartments. The study documented microplastic presence across species at different depths, highlighting how plastic contamination extends throughout the oceanic water column.
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.
Microplastics Contamination of Large Pelagic Fish in the Open Atlantic Ocean
Researchers analyzed microplastic contamination in large pelagic fish including tunas, mackerels, and amberjacks collected from the open Atlantic Ocean to assess plastic exposure in top predators. They found microplastics present in fish from even remote open-ocean habitats, demonstrating the ubiquity of microplastic contamination and the utility of large migratory fish as indicators of ocean health.
Microplastics in different tissues of a pelagic squid (Dosidicus gigas) in the northern Humboldt Current ecosystem
Microplastics were identified in multiple tissues of the Humboldt squid from the northern Humboldt Current ecosystem, including digestive gland, mantle, and gills, indicating systemic exposure beyond the gut in this commercially important cephalopod.
Plastic in the inferno: Microplastic contamination in deep-sea cephalopods (Vampyroteuthis infernalis and Abralia veranyi) from the southwestern Atlantic
Microplastics were detected in two deep-sea cephalopod species from the southwestern Atlantic -- the vampire squid and midwater squid -- demonstrating that microplastic contamination extends into deep-water ecosystems and affects organisms across different depth ranges and feeding strategies.
Frequency of Microplastics in Mesopelagic Fishes from the Northwest Atlantic
Microplastics were found in the stomachs of mesopelagic fish collected from the Northwest Atlantic, with ingestion rates and particle types varying by species and depth. The study expands the known distribution of microplastic ingestion into deep-water fish communities, suggesting that plastic contamination has penetrated even mid-water food webs far from the surface.
Microplastic ingestion and Phthalate ester levels as plastic tracers in the Mediterranean Velella velella: a candidate plastic indicator for the pelagic neustonic environment
Researchers used Mediterranean fish and invertebrates as bioindicators of plastic pollution, correlating microplastic ingestion levels with phthalate ester concentrations in their tissues to validate the use of combined biological monitoring for tracking spatial and temporal trends in marine plastic contamination.
Microplastics, bisphenols, phthalates and pesticides in odontocete species in the Macaronesian Region (Eastern North Atlantic)
Researchers found microplastics in all 12 stranded odontocetes from six species in the Macaronesian Region, with fibers comprising 98% of particles, and detected bisphenols and DEHP at high concentrations in muscle tissue alongside pesticide residues in nearly all individuals.
Microplastic ingestion by deep‐pelagic crustaceans and fishes
Among 557 individual deep-pelagic crustaceans and fishes from the Gulf of Mexico, 29% of crustaceans and 26% of fishes had ingested microplastics, with ingestion rates in non-migratory fishes increasing with depth and reaching 40% at 1200-1500 m, suggesting plastic accumulates at greater ocean depths.
Microplastic pollution in the Indian Ocean: Fiber-dominated contamination and comparative bioaccumulation in Auxis thazard and Symplectoteuthis oualaniensis
Researchers surveyed microplastic pollution across 32 sites in the Indian Ocean and in the tissues of two marine species, frigate tuna and flying squid. Microplastics were detected at nearly 94% of sampling sites, predominantly fiber-shaped particles from synthetic textiles, with the Arabian Sea showing the highest concentrations. The study found evidence of microplastic bioaccumulation in both species, raising concerns about contamination moving through the marine food chain.
The uptake of macroplastic & microplastic by demersal & pelagic fish in the Northeast Atlantic around Scotland
Researchers examined plastic ingestion in coastal flatfish and offshore pelagic and demersal fish around Scotland, finding that nearly half of coastal fish contained plastic while only 2.4% of offshore fish did, with polyamide fibers being the most commonly identified polymer type across both environments.
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.
Synthetic and Semi-Synthetic Microplastic Ingestion by Mesopelagic Fishes From Tristan da Cunha and St Helena, South Atlantic
Scientists examined the digestive tracts of deep-sea mesopelagic fish from the remote South Atlantic and found microplastics in their intestines. The presence of plastic in fish at depths down to 1,000 meters in one of the most isolated ocean regions confirms that microplastic contamination has reached even the deep ocean.
Ingestion of Microplastics by Zooplankton in the Northeast Pacific Ocean
Researchers collected zooplankton from the northeast Pacific Ocean and found microplastics ingested by multiple species, demonstrating that microplastic uptake occurs throughout the open ocean zooplankton community far from coastlines.
Little evidence for bioaccumulation or biomagnification of microplastics in a deep-sea food web
Researchers examined microplastic contamination in both gastrointestinal tracts and non-GI tissues of six marine species across multiple trophic levels sampled in a deep-sea food web in Monterey Bay, California, including tuna crab, market squid, northern lampfish, chub mackerel, California halibut, and Chinook salmon. After chemical digestion, they found little evidence for bioaccumulation or biomagnification of microplastics in tissues outside the gastrointestinal tract.
Phthalate diester occurrence in marine feed and food (Mediterranean Sea)
Researchers detected phthalate diesters in Mediterranean Sea zooplankton, fish, and bivalves, with DEHP found in all zooplankton samples and 30% of fish, demonstrating how microplastics transport these endocrine-disrupting chemicals through marine food webs.
Microplastics in a pelagic squid (Dosidicus gigas) from the Eastern tropical Pacific Ocean: Characteristics, spatial variation, and preliminary risk assessment
Researchers examined microplastics in the stomachs of jumbo squid from the eastern tropical Pacific Ocean, finding contamination in most specimens with fragment and fiber types dominating, and conducted a preliminary risk assessment highlighting the potential for microplastic trophic transfer in this commercially important pelagic species.
When the small ones tease the largest: Microplastic and phthalate ester occurrence in cetaceans occasionally found in the German North Sea and Baltic Sea
Seven cetacean species stranded on Germany's North Sea and Baltic Sea coasts were examined for microplastics and phthalate esters, with microplastics and plastic-associated chemicals detected in intestinal and fecal samples across baleen and toothed whale species alike.
Microplastics in the Indian and South Atlantic oceans translocate to gills, digestive glands, and muscle of the chokka squid Loligo reynaudii
Researchers compared microplastic contamination in chokka squid from the South Atlantic and Indian Oceans off South Africa. The study found that squid from both oceans contained microplastics in their gills, digestive glands, and muscle tissue, with blue polyethylene fibers being the dominant type, suggesting that marine microplastic pollution affects commercially important cephalopod species.
Plastic ingestion by pelagic and demersal fish from the North Sea and Baltic Sea
Researchers examined gastrointestinal tracts of 290 North and Baltic Sea fish and detected plastic in 5.5% of individuals, with pelagic species like herring and mackerel ingesting plastic at three times the rate of bottom-dwelling cod and flounder, and polyethylene making up nearly 40% of identified polymer types.
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.
Plastic for dinner? Observations of frequent debris ingestion by pelagic predatory fishes from the central North Pacific
Researchers documented frequent ingestion of plastic debris by large predatory pelagic fishes — including mahi-mahi, opah, and swordfish — sampled from the central North Pacific between 2007 and 2012. The findings demonstrate that plastic contamination extends beyond small planktivorous fish and seabirds to apex pelagic predators, with implications for trophic transfer of associated chemical contaminants.
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.