We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Assessment on Microplastics Contamination in Freshwater Fish: a Case Study of the Ubolratana Reservoir, Thailand
Summary
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 pollution is now a global issue. Reservoirs are an enclosed aquatic environment at risk from accumulation of microplastics. Few studies have used fish species as bio-indicators to monitor microplastic contamination in reservoirs. Freshwater fish were caught by local fishermen from 10 stations around the Ubolratana Reservoir, Thailand in October 2018 and the abundance, size, color and shape of microplastic particles in their stomachs and intestines were investigated. Fourteen fish species were examined. Results showed that 96.4% of the fish had ingested microplastics at mean abundance of 2.921.30 particles per fish, with significant differences of abundance between species. Microplastic abundance was highest in carnivorous fish Parambassis siamensis (4.111.08 particles per fish). The most common size of ingested microplastics was over 0.5 mm (66.4%), with 51.0% as blue color and 98.2% fiber shaped. High levels of microplastics were ingested by fish located in the middle and lower parts of the reservoir. Results revealed that blue fiber microplastics dominantly observed in fish were derived from the breakdown of nets used for fishing activities.
Sign in to start a discussion.
More Papers Like This
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.
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.
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.
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 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.