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pink snapper and blue groper microplastics data_DAY_310823
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This dataset documents microplastic ingestion by two fish species — blue groper and pink snapper — collected in New South Wales, Australia in 2021 and 2022, supporting research on how commonly consumed seafood species ingest plastic particles.
This dataset contains fish morphometrics, gut fullness and gut contents information pertaining to the ingestion of microplastics by two species of fish (A. viridis [blue groper] and C. auratus [pink snapper]) in 2021 and 2022 in New South Wales (NSW), Australia.
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First evidence of microplastic “nurdle” consumption by fish in south-eastern Australia
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For the first time, plastic nurdles — the small pre-production pellets used to manufacture most plastic goods — were found in the gut contents of fish in south-eastern Australia, with pink snapper being much more susceptible to ingestion than blue groper. Nurdle ingestion appeared to increase with fish size, suggesting that larger, commercially important fish species may be accumulating these particles through their natural feeding behavior.
Low abundance of microplastics in commercially caught fish across southern Australia
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Researchers examined microplastic contamination in nine commercially important fish species purchased from seafood markets across 4,000 km of southern Australia. They found that about 35.5% of fish had at least one microplastic particle in their gastrointestinal tract, with an average load of 0.94 pieces per fish, and polyolefin was the dominant polymer type. While microplastic ingestion was widespread across species and locations, the levels were lower than those reported in similar global studies.
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This dataset supports a study that found 21 reef fish species from the southwestern Atlantic had ingested microplastics or artificial cellulose microfibers. Nine species ingested particles in total, with most ingesting both plastic and cellulose types, documenting widespread microfiber contamination in Atlantic reef fish.
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This study examined the plastic ingestion rates and diet composition of two common fish species, identifying the types and quantities of microplastics found in their digestive tracts. The results help establish baseline data on how microplastics enter aquatic food webs through fish consumption.
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Researchers examined the gut contents of 292 planktivorous fish from seven species along the southeast Pacific coast and found a very low prevalence of microplastic contamination, with only 2.1% of fish containing plastic particles. The microplastics found were degraded fragments and threads of various colors, suggesting the fish were not selectively targeting them. The study indicates that microplastic ingestion risk for planktivorous species in this region may currently be limited compared to other ocean areas.
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