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61,005 resultsShowing papers similar to First Evidence of Microplastic Ingestion by Riverine Fish From the Freshwater of Northwest Peninsular Malaysia
ClearIngestion of Microplastics by Commercial Fish in Skudai River, Malaysia
Microplastics were found in the gastrointestinal tracts of commercial fish in a Malaysian river, adding to growing evidence of widespread contamination in freshwater fish. The findings raise concerns about the potential transfer of microplastics to humans who consume these fish.
Prevalence of microplastics in commonly consumed fish species of the river Old Brahmaputra, Bangladesh
Researchers found microplastics in nearly 59% of edible fish from Bangladesh's Old Brahmaputra river, with polyethylene fibers and pellets dominating, and ingestion rates linked to fish size, feeding behavior, and downstream location.
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.
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.
Abundance and characteristics of microplastics in commercial marine fish from Malaysia
Microplastics were found in the digestive tracts of eight commercially important marine fish species caught in Malaysian waters, with prevalence and particle types varying by species and location. The study raises food safety concerns for Malaysian seafood consumers and highlights the widespread occurrence of microplastic ingestion in wild-caught fish from Southeast Asian seas.
Contamination of microplastics in Brantas River, East Java, Indonesia and its distribution in gills and digestive tracts of fish Gambusia affinis
Researchers sampled water, gills, and digestive tracts of fish in Indonesia's Brantas River and found microplastics in all three, with fragments under 0.1 mm making up the majority — demonstrating that river fish are actively ingesting microplastics that then accumulate in their bodies.
Investigation of microplastic ingestion in commercial fish from Surabaya river, Indonesia
Researchers examined microplastic contamination in commercial fish species from the Surabaya River in Indonesia, a major urban waterway used for both clean water supply and fisheries. They found microplastics present in all fish studied, with variations in abundance linked to feeding behavior and habitat. The findings raise concerns about food safety for communities that rely on river fish as a dietary staple.
Occurrence and characterization of microplastic content in the digestive system of riverine fishes
Researchers found microplastics in 93.8% of riverine fish examined, with polystyrene, polyethylene, and nylon being the most common polymer types concentrated near urban and industrial areas, and small particles (0.025-1 mm) predominating across species.
Determination of microplastic in various freshwater fish species from agriculture fishpond in Tanjong Karang, Selangor
Researchers found microplastics in the gastrointestinal tracts of 29.25% of freshwater fish from an aquaculture fishpond in Tanjong Karang, Malaysia — a higher rate than previously reported in the region — with variation across species linked to feeding zone differences.
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.
Evidence of microplastic contamination in the food chain: an assessment of their presence in the gastrointestinal tract of native fish
Researchers found microplastics, mainly polyethylene and polypropylene, in the guts of fish from the Swat and Kabul rivers in Pakistan. These rivers are primary freshwater sources for the region, and the contaminated fish are regularly consumed by local communities. The findings confirm that freshwater fish from polluted rivers are a pathway for microplastic exposure in people's diets.
First evidence of microplastic ingestion by fishes from the Amazon River estuary
Researchers documented the first evidence of microplastic ingestion by fish in the Amazon River estuary, finding plastic particles — predominantly polyamide and polyethylene pellets — in 30% of 189 specimens across 14 species, with larger fish containing more particles, indicating widespread contamination extending into one of the world's most biodiverse river systems.
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.
Microplastics in Malaysia's Aquatic Environment: Current Overview and Future Perspectives
This review summarizes microplastic research across Malaysia's rivers, coastal waters, seafood, and sediments, finding widespread contamination in all aquatic environments studied. Fibers and fragments from everyday plastic products were the most common types found. The authors highlight that Malaysians face significant microplastic exposure through seafood consumption and call for better pollution monitoring and waste management policies.
Abundance, characteristics and variation of microplastics in different freshwater fish species from Bangladesh
Researchers examined 48 freshwater fish from 18 species in Bangladesh and found microplastics in the digestive tracts of over 73% of the fish studied. Fibers were the most common shape, and the plastics were primarily polyethylene and polypropylene-based polymers. Bottom-dwelling fish contained more microplastics than those living higher in the water column, suggesting that contaminated sediments are a significant source of exposure for freshwater species.
Microplastics Contamination in Wild Fish Caught from Urbanised Sepanggar River of Kota Kinabalu, Sabah
Researchers examined microplastic contamination in wild fish caught from the urbanized Sepanggar River in Malaysia, finding MPs in all sampled fish with polymer types consistent with urban runoff, domestic sewage, and fishing gear as dominant sources.
Occurrence and amount of microplastic ingested by fishes in watersheds of the Gulf of Mexico
Researchers quantified microplastic ingestion by fishes across several freshwater and estuarine watersheds of the Gulf of Mexico. The study documented widespread microplastic occurrence in fish from these environments, contributing important data about freshwater contamination at a time when most research had focused on marine ecosystems.
Determination of Microplastic in Selected Freshwater Fish Species from Agriculture Fishpond in Tanjong Karang, Selangor, Malaysia
Researchers investigated microplastic contamination in twelve freshwater fish species from aquaculture fishponds in Tanjong Karang, Selangor, Malaysia, using visual examination of gastrointestinal tract contents. Microplastics were detected in 29.2% of fish samples, with prevalence varying by feeding zone, a rate higher than previously documented in comparable regional studies.
Occurrence of Microplastics in the Gastrointestinal Tracts of Edible Fishes from South Indian Rivers
Researchers isolated and characterized microplastics from the gastrointestinal tracts of five edible fish species collected from the Kollidam and Vellar rivers in Tamil Nadu, Southern India. They found 315 microplastic particles across 23 fish, dominated by fibers (85.7%) in Kollidam river fish and fragments (14.3%) in Vellar river fish, with particle sizes ranging from 109 to 284 µm, indicating widespread dietary exposure to microplastics in commercially harvested freshwater fish.
Characterization and enumeration of microplastic pollution in three fish species of the Upper Mississippi River
Researchers found 891 microplastic particles across 281 fish from three species in the Upper Mississippi River, with fibers being the most common type and smaller fish containing proportionally more microplastics than larger ones. This confirms microplastic ingestion is widespread in freshwater fish — not just marine species — and the presence of styrene-isoprene, polyester, and ABS polymers highlights the diverse plastic sources contaminating major river systems.
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.
Microplasticcontaminationincommercial marine fish: A case study in Johor, Malaysia
Researchers examined four species of commercially important marine fish from waters around Johor, Malaysia, and found microplastics present in the flesh of all species sampled. Fibers and fragments were the most common particle types, with polypropylene and polyethylene being the dominant polymers identified. The findings raise concerns about human dietary exposure to microplastics through commonly consumed fish in the region.
The pervasiveness of microplastic contamination in the gastrointestinal tract of fish from the western coast of Bangladesh
Researchers found microplastics in every individual fish examined from the western coast of Bangladesh, with an average of 7.1 particles per specimen, and demersal species accumulating more microplastics than pelagic species near the world's largest mangrove ecosystem.
Abundance, characteristics, and risk assessment of microplastics in indigenous freshwater fishes of India
Researchers examined microplastic contamination in five widely consumed freshwater fish species from India and found plastic particles in all specimens, with fibers being the most dominant type. Evidence of microplastics in edible fish tissue indicates translocation from the gut, suggesting a pathway for human exposure through consumption. Risk assessment showed that while microplastic abundance posed a low quantitative risk, the polymer types identified indicated a high hazard potential for the fish species studied.