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Microplastics in silver catfish (Chrysichthys nigrodigitatus) from new Calabar River in Niger Delta, Nigeria
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Microplastics were found in about 56% of silver catfish from New Calabar River in Nigeria's Niger Delta, with an average of 3.87 particles per fish, mostly fragments, highlighting freshwater microplastic contamination risks in West African river systems.
This study investigated the ingestion of microplastics by silver catfish (Chrysichthys nigrodigitatus) from New Calabar River in Niger Delta, Nigeria. Microplastics from the guts of 45 fish were examined with microscope after dissolution with potassium hydroxide. Microplastics, mostly fragments were found in about 56% of the samples at an average of 3.87±5.97 particles per fish. This study highlights the consequences of plastic pollution in freshwater environment and the potential risk to aquatic and human life. This also shows a potential threat to public health and therefore needs attention from health and environmental policy makers.
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Researchers examined microplastic contamination in the silver catfish (Chrysichthys nigrodigitatus) harvested from the Ikpoba River in Nigeria, quantifying MP levels and characteristics in this commercially important species to assess food web contamination and potential human dietary exposure.
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Fish samples from six Nigerian coastal rivers all contained microplastics, mostly tiny fibers and polystyrene or polypropylene pieces, averaging about 3 particles per fish. Silver Catfish had the highest levels. Researchers suggest studying more aquatic animals for microplastic pollution.
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Researchers detected multiple types of microplastics — including polyethylene, polypropylene, and PVC — in water and fish from a Nigerian river, and found that African catfish living there showed signs of tissue damage and altered blood markers, indicating that microplastic contamination is harming freshwater fish health in the region.
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Researchers tested water and three fish species from Yusuf Bage River in Nigeria for microplastics. Plastic particles, mostly polyethylene, were found in all fish tissues and water samples, with higher amounts in gills and intestines than in flesh, and averaged 45.3 particles per liter in water.
Assessment of Microplastic Contaminations in African Catfish (Clarias gariepinus) From Selected Fish Farms in Awka Metropolis, Anambra State, Nigeria
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Researchers found tiny plastic particles in the gills, intestines, and muscle of farmed catfish in Nigeria, with contamination levels linked to water quality at each farm. Since the muscle is the part people actually eat, this means fish consumers could unknowingly be ingesting microplastics too, highlighting the need for cleaner water sources and better fish farm management.
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.