We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Microplastic content of Kutum fish, Rutilus frisii kutum in the southern Caspian Sea
AI summary Read the abstract
This study found microplastics in the digestive tracts of commercial Kutum fish (Rutilus frisii kutum) from the Caspian Sea, with fibers being the most prevalent type, raising concerns for human exposure through seafood consumption.
The occurrence of microplastics (MPs) in the digestive tract of commercial Kutum fish, Rutilus frisii kutum was investigated. Fish samples, ranging from 33 to 48.5 cm fork length which sold for human consumption, were collected from local fish markets in Bandar-e Torkaman (the south-eastern of Caspian Sea) on November 2017, and March 2018. The MPs were characterized using optical microscopy, NR staining, and SEM-EDS for number, shape, color, surface morphology, and elemental composition. On average, 11.4 MP items per fish (0.015 items per 1 g fish wet weight) were found in Kutum's stomach at an individual detection rate of 80%. Around 66% of all identified MP items were < 500 μm, and 53% possessed light colors. Morphological researches indicated that fish ingested the degradation fragments from larger plastic pieces, fibers, and manufactured microbeads. Microfibers are the most dominant items accounting for over 75% of all MPs. The SEM images indicated the various degrees of erosions upon environmental exposure. Some MPs had surface cracks, broken margins, scaly appearances, and obvious pores. Considering the commercial importance which the Kutum plays for Iran's fishery, the potential effect of MPs on the trophic food web, particularly for human consumption and health, should be urgently investigated.
More Papers Like This
Microplastic contamination in the gastrointestinal tract of Caspian kutum (Rutilus kutum) from Miankaleh fishing grounds: Implications for ecosystem and human health
AI summary Read the abstract
Researchers examined microplastic contamination in Caspian kutum (Rutilus kutum) from three fishing grounds along Iran's Miankaleh coastline, finding MPs in 93.7% of fish — predominantly fibres from textiles and fishing gear — with contamination levels highest near the Gorganrud River, raising food safety concerns for a commercially important species.
Microplastic ingestion in important commercial fish in the southern Caspian Sea
AI summary Read the abstract
Researchers examined microplastics in the digestive systems of two commercial fish species (Chelon aurata and Rutilus kutum) responsible for over 50% of Caspian Sea catch, documenting the extent of contamination in fish destined for human consumption.
Assessment of microplastic contamination in some commercial fishes of the southern Caspian Sea and its potential risks
AI summary Read the abstract
Researchers examined microplastic contamination in the digestive tracts of 384 fish from four species collected across 11 sites in the southern Caspian Sea. Evidence indicates that nearly 69% of fish contained microplastics, with fibers being the most common type, highlighting widespread plastic pollution in this important inland sea and potential risks to both aquatic life and human seafood consumers.
Microplastic fibers in the gut of highly consumed fish species from the southern Caspian Sea
AI summary Read the abstract
Researchers assessed microplastic contamination in the guts of three highly consumed fish species from the southern Caspian Sea. They found that fibers were the only shape of microplastics detected, with leaping mullet showing the highest frequency, and that black-colored polystyrene, polypropylene, and polyethylene terephthalate were the dominant polymer types across all species.
Microplastics in different tissues of some commercially important fish species from Anzali Wetland in the Southwest Caspian Sea, Northern Iran
AI summary Read the abstract
Microplastics were detected in the gastrointestinal tract, muscle, and gonads of nine commercially important fish species from Anzali Wetland in the Caspian Sea, with fiber being the most common type and occurrence varying by species and tissue.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.