Popular fish species on the Great Barrier Reef have shown signs of microplastics and other man-made plastics within their gut.
The study from the Australian Institute of Marine Science in Townsville has found this to be the first study of wild-caught commercial fish with the presence of micro-debris within a World Heritage Area.
Researches are currently unclear whether sources of the micro fibre could be from domestic, land-based or shipping-based sewage discharges, or other international sources.