During routine beach litter surveys on the subtropical island of Okinawa, Japan, researchers noticed small, brightly colored specks embedded in pale coral rubble. The unusual appearance prompted them to collect samples for closer examination.
Back in the lab, spectroscopic and microscopic analyses revealed that the specks were melted polymers fused with the coral fragments. The researchers have named these formations 'plasticorals' to describe this newly observed form of plastic pollution.
Because this is a single report, there are no competing findings to compare. The study highlights how plastic pollution can take unexpected forms in coastal environments, and the authors suggest further surveys may reveal how widespread plasticorals are.