We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Occurrence of microplastics in the gastrointestinal tracts of four most consumed fish species in Giresun, the Southeastern Black Sea
Summary
Researchers examined four commonly eaten fish species from the Black Sea coast of Turkey and found microplastics in the digestive tracts of all four species. Bottom-dwelling fish had higher microplastic concentrations than surface-dwelling species, likely because microplastics settle and accumulate in sediments. Since these are popular commercial fish species, the findings underscore a direct route of microplastic exposure for seafood consumers in the region.
Microplastic studies investigating concentrations in water are numerous, but the majority of microplastics settle and are retained in sediment, and higher concentrations are regularly reported in sediments. Thus, MPs accumulation may be more threatening to benthic fish living in sediments than to pelagic fish. The presence, abundance and diversity of microplastics were investigated by collecting samples from two pelagic, European anchovy, and horse mackerel and two benthic fish species, red mullet, and whiting that are popularly consumed in Giresun province of Türkiye, located on the southern coast of the Black Sea. Visual classification and chemical compositions of microplastics was performed using a light microscope and ATR-FTIR spectrophotometry, consecutively. The overall incidence and mean microplastics abundance in sampled fishes were 17 and 1.7 ± 0.18 MP fish, respectively. MPs were within the range of 0.026-5 mm in size. In most of the cases, the MP was black in color with 41%. With the rates of 56%, polypropylene was the predominant polymer type. The most dominant MP type was identified as fiber followed by fragments and pellets. The relationship between MP amounts in fish and Fulton condition factor was not strong enough to establish a cause-effect relationship.
Sign in to start a discussion.
More Papers Like This
Microplastics in commercial fish and their habitats in the important fishing ground of the Black Sea: Characteristic, concentration, and risk assessment
Researchers analyzed microplastic contamination in six commercial fish species from the Black Sea and found microplastics in all environmental areas studied, including surface water, the water column, sediments, and fish. Fibers were the most common type of microplastic found, and bottom-dwelling fish had higher contamination levels than fish living closer to the surface. Since these are commonly eaten fish species, the findings are relevant to human dietary exposure to microplastics.
Occurrence of microplastics in the gastrointestinal tracts of some edible fish species along the Turkish coast
Researchers examined the gastrointestinal tracts of 243 individual fish from five edible species along the Turkish coast, documenting the occurrence and characteristics of ingested microplastics. The study found microplastics present in multiple commercially important fish species, raising implications for seafood safety and human dietary exposure.
Ingestion of microplastics by commercial fish species from the southern Black Sea coast
Three commercial fish species from the Turkish Black Sea coast -- European anchovy, whiting, and red mullet -- were examined for microplastic ingestion, with plastics found in all three species and fibers being the dominant type. The study adds to regional evidence that microplastic contamination is widespread in commercially harvested Black Sea fish.
Plastic Occurrence in Commercial Fish Species of the Black Sea
Researchers examined plastic ingestion in seven commercial fish species from the Black Sea and found plastics in the gastrointestinal tracts of 29% of all individuals tested. Fibres were the most common type of plastic found, accounting for nearly 69% of all particles, with 93% being microplastics smaller than 5 mm. The study identified polypropylene, polyester, and acrylic as the most prevalent polymer types, indicating widespread microplastic contamination in Black Sea commercial fisheries.
Assessment of microplastic pollution in eleven commercial fish species in the Gulf of İzmir (Aegean Sea, eastern Mediterranean)
Researchers examined 152 fish from 11 commercially important species in the Gulf of Izmir, Turkey, and found microplastics in 42% of them. Polyethylene fragments and fibers were the most common types found in fish digestive tracts, with surface-dwelling fish species showing higher contamination than bottom-dwelling ones. Since these are species commonly sold and eaten by people in the region, the study highlights a direct pathway for microplastic exposure through seafood consumption.