Microplastic contamination was as high as 75% off Fiji - with reef fish and bottom feeders most exposed, according to the study published in the journal PLOS One. Research leader Jasha Dehm says microplastic pollution in marine environments is a "global issue" impacting ecosystems and human health. "However, there has been little research on microplastic contamination in fish consumed in the PICTs." In Fiji, nearly 75% of fish contained microplastics - much higher than the global average of 49%. Reef fish and bottom-dwelling fish were more frequently contaminated with microplastics compared to coastal or lagoon fish and open ocean fish.