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Is the weight of plastic litter correlated with vegetal wrack? A case study from a Central Italian beach
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Researchers found that vegetal wrack on a central Italian beach acts as a trap for plastic litter, with large microplastics (2.5-5 mm) being the most abundant size category, suggesting plant material entrapment plays a role in coastal plastic accumulation.
This study analyzes the occurrence and distribution of plastic litter and the entrapment of plastic by wrack beached on a natural reserve. Large microplastics (2.5 - 5 mm) were the most abundant plastic size category detected. The main color and shape were white and fragment, respectively. The plastics entrapped by egagropiles were mainly transparent fibers. We analyzed the correlation between the weights of plastic litter and vegetal wrack in two transects, selected for their different environmental characteristics. The transect closer to a breakwater showed a significant positive correlation between the weights of plastics and wrack, while the other transect suggested a casual pattern of plastic deposition on the beach. Further research is suggested to focus on the role of breakwaters in altering marine currents and enhancing plastic beaching.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.