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Floating microplastic pollution in the vicinity of a marine protected area and semi-enclosed bay of Peru
Summary
Researchers conducted a baseline survey of floating microplastics near a marine protected area and semi-enclosed bay in northern Peru. They found an average concentration of 0.22 microplastic particles per liter, predominantly blue polyethylene terephthalate fibers. The study suggests that local surface currents within the semi-enclosed Sechura Bay may trap and accumulate floating microplastics regardless of the sampling season.
A baseline survey for floating microplastics (MPs) in the vicinity of a marine protected area and semi-enclosed bay of northern Peru was carried out. An average concentration of 0.22 MPs/L was estimated, primarily dominated by blue polyethylene terephthalate fibers. The distribution of floating MPs suggests that they tend to accumulate within the semi-enclosed Sechura Bay regardless of the sampling season. This behavior may be explained by local surface currents in the bay, which flow inwards and exhibit vorticities that could entrap MPs. Future studies are suggested to investigate the trajectory and fate of floating MPs within semi-enclosed areas. On the other hand, the impact of floating MPs on the trophic chain of coastal marine protected areas requires further research.