Plastic pollution in a special protected area for migratory birds

Area of Science:

• Marine Biology
• Environmental Science
• Conservation Science

Background:

• Special Protected Areas (SPAs) for migratory birds face increasing plastic pollution threats.
• Plastic litter, from macro to microplastics, degrades marine and coastal ecosystems.
• Assessing plastic pollution in SPAs is crucial for understanding ecological risks.

Purpose of the Study:

• To conduct the first assessment of plastic litter in beach sediments within a Special Protected Area.
• To evaluate beach quality and ecological risk at Montorsoli Beach and Pylon Beach in the Strait of Messina.
• To identify types and densities of plastic pollution and their potential impact on migratory birds.

Main Methods:

• Sampling of beach sediments for macro and microplastic analysis at two distinct sites.
• Quantification of plastic density (pieces/m²).
• Identification of polymer types using various analytical techniques.

Main Results:

• Plastic density varied significantly, with Montorsoli Beach (1.2 pieces/m²) being more polluted than Pylon Beach (0.1 pieces/m²).
• Dominant microplastics included Polypropylene, Polyethylene, Polyethylene terephthalate, Polytetrafluoroethylene, cotton, and cellulose-based materials.
• Montorsoli Beach showed a high concentration of Polymethyl methacrylate (91%), while Pylon Beach had a higher proportion of cotton (49%).

Conclusions:

• Montorsoli Beach is classified as 'very dirty' compared to Pylon Beach, indicating significant anthropogenic contamination.
• The presence of Polymethyl methacrylate pellets at Montorsoli Beach poses a direct threat to marine birds.
• This study provides essential baseline data for regional management strategies to mitigate plastic pollution in critical bird habitats.