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61,005 resultsShowing papers similar to First Evidence of Microplastics Ingestion by Freshwater Fishes from Nong Luang Wetland (Chiang Rai, Thailand)
ClearMicroplastics 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.
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.
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.
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.
Presence and Characterization of Microplastics in Coastal Fish around the Eastern Coast of Thailand
Researchers examined microplastic contamination in 274 fish from Thailand's eastern coast and found that about 13% of specimens had ingested microplastics, predominantly PET fibers. Pelagic species showed slightly higher microplastic ingestion rates than bottom-dwelling species, though overall the contamination was relatively low compared to global averages. The study suggests that fish feeding behavior and habitat influence their exposure to microplastic pollution.
Microplastic contamination in rivers: a survey from the Nan River, Thailand
A survey of the Nan River in northern Thailand found microplastics in surface water, sediment, and the gastrointestinal tracts of five aquatic species including fish and snails, with polypropylene, nylon, and acrylic polymers most common. The presence of microplastics across multiple ecosystem compartments and aquatic organisms highlights the ecological risks in this biodiversity-important river system and the need for expanded freshwater monitoring in Southeast Asia.
Occurrence of microplastics in freshwater gastropods from a tropical river U-Taphao, southern Thailand
This study found microplastics in freshwater gastropod snails from a tropical river in southern Thailand, with concentrations ranging from about 4 to 7 particles per individual depending on species and collection site, confirming microplastic ingestion in freshwater invertebrates in Southeast Asia.
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.
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.
Microplastic Ingestion by Fishes from Jamuna River, Bangladesh
Freshwater fish from the Jamuna River in Bangladesh were examined for microplastic ingestion, finding plastics in a high proportion of individuals across multiple species. The study provides early evidence of freshwater microplastic contamination in Bangladesh and highlights the Jamuna River as a significant conduit for plastic pollution.
Abundance, composition, and fate of microplastics in water, sediment, and shellfish in the Tapi-Phumduang River system and Bandon Bay, Thailand
Researchers measured microplastic contamination in water, sediment, and shellfish across the Tapi-Phumduang River system and Bandon Bay in Thailand, finding MPs throughout the system with highest concentrations in shellfish harvested from aquaculture areas and estimating human intake through local seafood consumption.
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 accumulation in water from protected areas in Western Forest Complex of Thailand
Researchers surveyed microplastic contamination in freshwater ecosystems within protected areas of Thailand's Western Forest Complex. The study found microplastics present in nearly 99% of water samples, predominantly as fibers, with polyethylene and polypropylene among the most common polymer types, suggesting that even remote protected areas are not immune to microplastic pollution.
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.
Microplastics occurrence in water, sediment and edible small indigenous fish species in seasonal freshwater wetland ecosystems of Bangladesh
Researchers found microplastics in the guts, gills, and muscle tissue of three commonly eaten fish species from seasonal wetlands in Bangladesh. Dried fish contained more microplastics than fresh fish, suggesting that the drying process concentrates plastic particles. Since these small fish are a dietary staple for local communities and are often eaten whole, this represents a direct pathway for microplastic exposure in human diets.
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.
Ingestion 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.
Microplastic Pollution in Indigenous Fish From the Padma River, Bangladesh: A Case Study
Researchers examined indigenous fish species from the Padma River in Bangladesh and found microplastics in the gastrointestinal tracts of all species studied, with fibers being the dominant type. The abundance and types of microplastics varied across species, reflecting differences in feeding habits and habitat. The findings highlight the widespread presence of microplastic contamination in an important inland waterway and its potential impact on food security in the region.
Thailand's animals in peril: a systematic review of microplastic contamination and its ecological consequences
This systematic review examines microplastic contamination in animals across Thailand, from fish to birds, revealing widespread pollution in the country's ecosystems. The findings matter for human health because microplastics that accumulate in wildlife can move up the food chain and eventually end up on our plates.
Characterization of microplastics in commercially valued Gangetic fishes and its exposure assessment on humans
Researchers characterized microplastics in commercially sold fish from the Ganges River in India, finding plastic contamination across multiple species and providing an initial exposure assessment for human consumers who rely on freshwater fish as a primary protein source.
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.
Characterization of Microplastics in Gastointestinal Tracts of Some Selected Fish Species in Akhalia River, Fulbaria, Mymensingh
Researchers found microplastics in the gastrointestinal tracts of three freshwater fish species — Channa punctatus, Macrognathus armatus, and Anabas testudineus — collected from the Akhalia River in Bangladesh, documenting the abundance, distribution, and characteristics of ingested particles.
Assessment and quantification of microplastic contamination in fishes with different food habits from Beel wetlands
Researchers examined microplastic contamination in fish from freshwater wetlands in India, finding particles in the digestive tracts of all 90 fish sampled across different feeding types. Carnivorous fish accumulated the most microplastics, followed by omnivores and then herbivores, suggesting trophic transfer plays a role. The most common particles were fibers in the 100 to 500 micrometer size range, with polyethylene and nylon as the dominant polymer types.
Spatial and temporal variations of microplastics in the Bangpakong River of Chachoengsao province
This study monitored microplastic concentrations in the Bangpakong River in Thailand across different seasons and sampling locations, providing baseline data on freshwater microplastic contamination. As a major freshwater source, the river's microplastic pollution has implications for drinking water quality and aquatic ecosystem health.