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61,005 resultsShowing papers similar to Presence and Characterization of Microplastics in Coastal Fish around the Eastern Coast of Thailand
ClearMicroplastic contamination in edible marine fishes from the upper Gulf of Thailand
Researchers examined microplastic contamination in edible fish from the upper Gulf of Thailand and found that nearly half the fish sampled contained microplastics in their digestive tracts, mostly polyester fibers. The estimated daily microplastic exposure for people eating these fish was relatively low at 0.03 to 0.1 particles per person. While the immediate risk appears small, the study recommends continued monitoring to ensure seafood safety as plastic pollution increases.
Microplastics in commercial fish digestive tracts from freshwater habitats in Northern Thailand
Researchers examined the digestive tracts of commercial freshwater fish species from Northern Thailand and found microplastics present in all species studied. Fibers were the most common type of microplastic detected, followed by fragments, with varying abundances depending on the fish species and habitat. The findings raise awareness about microplastic contamination in Thai freshwater fish and the potential for human dietary exposure.
Surveillance and histopathological study of microplastics in marine fish from the gulf of Thailand
Researchers found microplastics in the digestive tracts of 46.9% of marine fish sampled from the upper Gulf of Thailand, with an average of 1.6 particles per fish. Bottom-dwelling fish had higher contamination rates than open-water species, and histological examination showed intestinal tissue damage in contaminated fish — relevant to food safety for fish consumers in the region.
Microplastic contamination in freshwater fish: first insights from the Mekong River in Nakhon Phanom Province, Thailand
Researchers found microplastics in 100% of 89 fish gastrointestinal tracts sampled from the Mekong River in Thailand, averaging 23.76 items per individual, with fragments being the dominant shape (83%), particles under 100 µm the most common size, and 17 polymer types identified across species.
Assessment on Microplastics Contamination in Freshwater Fish: a Case Study of the Ubolratana Reservoir, Thailand
Researchers examined microplastic contamination in freshwater fish from the Ubolratana Reservoir, Thailand, finding that 96.4% of 14 examined species had ingested microplastics, and assessed abundance, size, colour, and shape of particles from stomach and intestinal contents across sampling stations.
The accumulation of microplastics in fish freshwater in the Mun river, Thailand
Researchers examined microplastic accumulation in freshwater fish from the Mun River in Thailand, finding plastic particles in the gastrointestinal tracts of multiple fish species. Fiber-shaped microplastics were the most commonly ingested type, likely originating from textile and domestic waste sources. The findings highlight the potential for human dietary exposure to microplastics through consumption of freshwater fish that are widely eaten throughout Southeast Asia.
First Evidence of Existence of Microplastics in Stomach of Some Commercial Fishes in the Lower Gulf of Thailand
This study provided the first evidence of microplastics in the stomach contents of commercial fish species from the lower Gulf of Thailand, finding plastic debris in multiple economically important species. The results raise food safety concerns for Thai seafood markets and highlight an understudied region in Southeast Asia's microplastic contamination landscape.
Screening for microplastics in marine fish of Thailand: the accumulation of microplastics in the gastrointestinal tract of different foraging preferences
Researchers investigated microplastic ingestion in 492 marine fish (361 demersal and 131 pelagic) from Thailand, finding no significant difference in uptake between the two foraging types, with polyamide fibers dominating in both groups. FT-IR analysis confirmed polyamide as the most common polymer and red-colored fibers as the most abundant morphology, providing the first such characterization for Thai marine fish.
Low prevalence of microplastic contamination in planktivorous fish species from the southeast Pacific Ocean
Researchers examined the gut contents of 292 planktivorous fish from seven species along the southeast Pacific coast and found a very low prevalence of microplastic contamination, with only 2.1% of fish containing plastic particles. The microplastics found were degraded fragments and threads of various colors, suggesting the fish were not selectively targeting them. The study indicates that microplastic ingestion risk for planktivorous species in this region may currently be limited compared to other ocean areas.
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.
Deposition characteristics of microplastics in coral reef fish with different feeding habits from the Xisha Islands Waters, South China Sea
Researchers examined microplastic contamination in the gills and gastrointestinal tracts of 96 coral reef fish from the South China Sea, finding that nearly 98% of sampled fish contained microplastics. Fibers were the most common shape, with most particles smaller than 1 mm, and the predominant polymers were PET, PE, and PP. The study found that herbivorous fish had higher microplastic content than omnivorous or carnivorous species, likely because they feed primarily on microplastic-polluted coral reefs.
Microplastic ingestion by commercial marine fish from the seawater of Northwest Peninsular Malaysia
Researchers examined microplastic ingestion by four species of commercially important marine fish caught off the northwest coast of Peninsular Malaysia. The study found microplastics in the gastrointestinal tracts of the fish, with fibers being the most common type, highlighting the prevalence of microplastic contamination in seafood from this region.
First Evidence of Microplastics Ingestion by Freshwater Fishes from Nong Luang Wetland (Chiang Rai, Thailand)
Researchers documented the first evidence of microplastic ingestion by freshwater fish in Nong Luang Wetland, Chiang Rai, Thailand, examining gastrointestinal tracts of 100 specimens across 15 species from 8 families. The study identified microplastics in fish from this understudied freshwater ecosystem, expanding knowledge of MP contamination beyond marine environments in Southeast Asia.
Occurrence, distribution and characteristics of microplastics in gastrointestinal tract and gills of commercial marine fish from Malaysia
Researchers examined 158 commercial marine fish from 16 species in Malaysia and found microplastics in the gastrointestinal tracts and gills of all species studied. Fibers were the most common microplastic type, and the contamination levels varied between sampling locations. The findings add to growing evidence that microplastics are widespread in commercially important fish species, raising questions about the potential for human exposure through seafood consumption.
First Evidence of Microplastic Ingestion by Riverine Fish From the Freshwater of Northwest Peninsular Malaysia
Researchers found microplastics in the guts of multiple fish species from two rivers in northwest Malaysia, with some species averaging nearly 50 microplastic particles per gram of body weight. The dominant particles were fibers and fragments of polyethylene and polypropylene — findings that signal widespread contamination of freshwater food sources and raise concerns about human exposure through fish consumption.
Microplastic occurrence in 21 coastal marine fish species from fishing communities on Viti Levu, Fiji
Researchers analyzed microplastic ingestion in 184 fish from 21 species across three coastal communities in Fiji and found microplastics in 74% of fish examined. Fibers were the most common particle type at 66%, with polyethylene and polypropylene the dominant polymers. This dataset, the largest of its kind for Fiji, establishes a critical baseline for monitoring plastic pollution in the region's coastal fishing grounds.
Feeding Habits and the Occurrence of Anthropogenic Debris in the Stomach Content of Marine Fish from Pattani Bay, Gulf of Thailand
Researchers found anthropogenic debris in the stomachs of 12 of 34 marine fish species from the Gulf of Thailand, with planktivorous fish ingesting the most debris and blue-colored items predominating, with ingestion rates peaking during the northeast monsoon season.
Microplastic contamination in thirty commercially important fish species: Distribution, polymer composition, pollution indices, and human health risks
Researchers examined microplastic contamination in 600 specimens across 30 commercially important fish species from the Indian coast, finding the highest accumulation in the gastrointestinal tract with carnivorous species carrying the greatest burden. Polyethylene and polypropylene fibers were the dominant particle types, and human health risk assessment showed measurable daily intake from consuming these fish, with pollution indices indicating considerable to medium hazard risk levels.
Low occurrence of microplastic contamination in anchovies, a transboundary species, in Thai waters
Researchers investigated microplastic occurrence in 100 anchovies from the Gulf of Thailand and Andaman Sea, finding a surprisingly low contamination rate of approximately 8% with only fragment-type MPs smaller than 500 micrometers detected, attributing the low levels to schooling behavior dilution effects, offshore distance from point sources, and the short six- to twelve-month lifespan of the fish.
Identification of the composition and abundance of microplastics in the digestive tract of fish in the Banjaran River, Banyumas District
Researchers identified and quantified microplastic composition and abundance in digestive tract contents of wild-caught fish from a coastal fishery, documenting ingestion rates, polymer types, and particle morphologies across multiple commercially important species.
Occurrence and accumulation of microplastics in commercial fish in the coastal waters of the Lvsi fishing ground in China
Researchers examined microplastics in the gills and guts of 11 commercial fish species from a Chinese coastal fishing ground, finding that over 85% of fish contained microplastics in these tissues at levels of roughly 2–3 pieces per fish. PET fibers with a blue color were most common, and microplastic abundance did not increase with trophic level, suggesting limited biomagnification in this food web. Because many of these fish species are consumed by humans, understanding their microplastic loads is directly relevant to assessing human dietary exposure.
Effect of biological and environmental factors on microplastic ingestion of commercial fish species
Researchers analyzed microplastic ingestion in commercially important fish species, evaluating how biological and environmental factors influence ingestion rates across 2,222 individual fish. The study assessed gastrointestinal tract contents to determine the extent and patterns of microplastic contamination. The findings suggest that both species-specific biology and environmental conditions play important roles in determining microplastic ingestion levels in commercial fish.
Assessment Of Microplastics In Commercially Important Fishes Collected From Thondi Fish Landing Center
Researchers assessed the presence and characteristics of microplastics in commercially important fish species collected from the Thondi fish landing center in India. The study evaluated microplastic contamination levels in fish obtained from a coastal fishing hub, contributing data on the prevalence of plastic particles in seafood relevant to both ecological and human dietary exposure concerns.
Characteristics and retention of microplastics in the digestive tracts of fish from the Yellow Sea
Researchers systematically characterized microplastics in 19 fish species from the Yellow Sea coast of China, finding plastic retention in 34% of individual fish sampled, with fibers dominating and significant variation in microplastic load by species and habitat.