Stranded and floating marine debris detected along the coastline of Cabrera National Park (Balearic Islands)

Marine Protected Areas (MPAs) are managed to conserve ecosystems however increased reporting highlights the observations of marine debris within these areas. The coastline of Cabrera Natural Park (Cabrera MPA) was surveyed in February, March, May, and July of 2021 to evaluate the seasonal trend of marine debris between winter and summer months. A general value of 6.94 items/km, ranging from 4.38 & PLUSMN; 4.55 items/km in July to 12.57 & PLUSMN; 17.56 items/km in March, was detected with no statistical differences between areas or surveyed months. Abundance of stranded debris (77 %) was statistically higher than floating debris (23 %). Prevailed floating plastic pieces 2.5 >< 50 cm and stranded nets and pieces of nets >50 cm. Artificial polymer materials, non-sourced debris, and non-Single Use Plastics were the most common items identified. This study highlights the importance of applying mitigation measures to avoid the presence of marine debris in areas of ecological interest.

Automated summary

Marine Protected Areas (MPAs) are crucial for conserving ecosystems, but recent reports indicate the presence of marine debris within these areas. A survey conducted in Cabrera Natural Park (Cabrera MPA) between February and July 2021 revealed an average of 6.94 items/km of marine debris, with no significant differences observed between areas or months. Stranded debris accounted for 77% of the total, while floating debris made up the remaining 23%. The most common items were small plastic pieces and large nets. This study emphasizes the need for mitigation measures to prevent marine debris in ecologically significant areas.