Scientists Define New Disease In Seabirds - Plasticosis, Which Scars The Digestive Tract [View all]

A new disease caused solely by plastics has been discovered in seabirds. The birds identified as having the disease, named plasticosis, have scarred digestive tracts from ingesting waste, scientists at the Natural History Museum in London say.

It is the first recorded instance of specifically plastic-induced fibrosis in wild animals, researchers say. Plastic pollution is becoming so prevalent that the scarring was widespread across different ages of birds, according to the study, published in the Journal of Hazardous Materials. Young birds were found to have the disease, and it is thought chicks were being fed the plastic pollution by parents accidentally bringing it back in food.

Scientists, including the Natural History Museum’s Dr Alex Bond and Dr Jennifer Lavers, studied flesh-footed shearwaters from Australia’s Lord Howe Island to look at the relationship between levels of ingested plastic and the proventriculus organ – the first part of a bird’s stomach.

They found that the more plastic a bird had ingested, the more scarring it had. The disease can lead to the gradual breakdown of tubular glands in the proventriculus. Losing these glands can cause the birds to become more vulnerable to infection and parasites and affect their ability to digest food and absorb some vitamins.

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https://www.theguardian.com/environment/2023/mar/03/plasticosis-new-disease-caused-by-plastics-discovered-in-seabirds