Study Investigates How Microplastics Harm Organisms in Coastal Areas

Washington D.C. [USA], Jan 8 (ANI): Microplastics or particles of plastic smaller than five millimeters have plagued salt and freshwater environments with their sheer abundance.In a research paper published in the Association for the Sciences of Limnology and Oceanography's journal Limnology & Oceanography Letters, researchers demonstrated how microplastics transfer through the food chain between microscopic prey and larval fish that inhabit the coastal ecosystem. The study also revealed that microplastic ingestion impedes the normal growth of fish larvae.The investigators, in addition, looked at the effects of a common pollutant (the pesticide DDT) that attaches to microparticles in coastal waters. Organisms were not able to detect or discriminate against ingesting microparticles with high levels of DDT."Our findings indicate that trophic transfer may be an important route for microplastic exposure in estuarine food webs and that even short exposure to high levels of microplastics can impair growth of an important prey fish," said lead author Samantha Athey, of the University of Toronto. "Because estuaries are incredibly productive habitats that are home to many of our commercial seafood species in the United States, it is important to understand the sources, fate, and effects of microplastics and associated pollutants in these systems." (ANI)

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