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Vijftig keer meer microplastics in de oceaan tegen eind deze eeuw
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This research examined microplastic occurrence in the body tissues and organs of Mediterranean bottlenose dolphins from the Adriatic Sea, finding widespread tissue distribution beyond the gastrointestinal tract. Polymer identification in liver and muscle tissue suggests microplastic translocation from the gut represents a toxicological concern for long-lived marine mammals.
Vijftig keer meer microplastics in de oceaan tegen eind deze eeuw In 2100 zal een kubieke meter oceaanwater 10-50 drijvende deeltjes microplastic bevatten, of vijftig keer meer dan vandaag.Hoewel deze gemiddelde concentraties beduidend onder de veilige concentratie van 6650 deeltjes/m 3 voor oceanische ecosystemen liggen, zijn plaatselijke overschrijdingen nu reeds mogelijk.Kustnabije zeebodems en stranden daarentegen dreigen al vroeger ecologisch schadelijke concentraties te bevatten.
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Evaluating the presence of microplastics in striped dolphins (Stenella coeruleoalba) stranded in the Western Mediterranean Sea
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Researchers analyzed three decades of intestinal content data from Western Mediterranean striped dolphins stranded over 30 years, finding microplastics in 90.5% of dolphins, making it one of the highest contamination rates reported in cetaceans.
First report from North America of microplastics in the gastrointestinal tract of stranded bottlenose dolphins (Tursiops truncatus)
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This study reported the first North American case of microplastics in the gastrointestinal tracts of stranded bottlenose dolphins, finding particles in the majority of animals examined. The detection of microplastics in apex marine predators like dolphins indicates that plastic contamination has penetrated far up the marine food chain.
Microplastic pollution is everywhere, even in the exhaled breath of dolphins – new research
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Researchers detected microplastics in the exhaled breath of wild dolphins, demonstrating that marine mammals are inhaling airborne plastic particles and providing new evidence of how pervasive microplastic pollution has become across ocean ecosystems.
Microplastics in marine mammals stranded around the British coast: ubiquitous but transitory?
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Researchers examined the entire digestive tracts of 50 stranded marine mammals from 10 species around the British coast and found microplastics in every single animal. However, the relatively low particle counts suggest that microplastics may pass through the gut rather than accumulate permanently. The findings indicate that microplastic ingestion is ubiquitous among marine mammals, though the long-term health consequences remain unclear.
Predicted microplastic uptake through trophic transfer by the short-beaked common dolphin (Delphinus delphis) and common bottlenose dolphin (Tursiops truncatus) in the Northeast Atlantic Ocean and Mediterranean Sea
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Researchers estimated daily microplastic ingestion via trophic transfer for two dolphin species in the Mediterranean Sea and Northeast Atlantic, calculating that common dolphins ingest up to 164 microplastics per day in the Mediterranean. The estimates highlight how plastic pollution accumulates through marine food webs and reaches apex predators.
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.