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Stranded and floating marine debris detected along the coastline of Cabrera National Park (Balearic Islands)
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Researchers assessed the transfer of polystyrene microplastics across the murine maternal-fetal interface, detecting fluorescent particles in placental tissue and fetal organs following maternal oral exposure during gestation. The study provides evidence that microplastics can cross the placental barrier and reach fetal tissues, raising questions about gestational exposure risks.
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 ± 4.55 items/km in July to 12.57 ± 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.
More Papers Like This
Sea surface surveys for microplastic and floating marine macro litter items in coastal waters of Cabrera Archipelago Maritime Terrestrial National Park
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Net surveys around the Cabrera Archipelago National Park in the Balearic Islands found enormous quantities of microplastics — averaging over 380,000 particles per square kilometer — with polyethylene and polypropylene making up 98% of the material. Even this protected marine area showed high contamination, and smaller survey vessels were far better at capturing the smallest size fractions than larger research ships used in comparable studies. The findings establish a pollution baseline for one of the Mediterranean's few marine protected areas and demonstrate that legal protection from human activity does not shield coastal waters from microplastic drift.
Spatial distribution of macro- and micro-litter items along rocky and sandy beaches of a Marine Protected Area in the western Mediterranean Sea
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Macro- and micro-litter were mapped across rocky and sandy beaches within a marine protected area in the Balearic Islands, finding a mean macrolitter concentration of about 1.9 items per square meter and widespread microplastic presence in sandy sediments. Plastic fragments and films were the dominant litter categories, highlighting recreational pressure even in protected coastal areas.
Nearshore spatio-temporal sea surface trawls of plastic debris in the Balearic Islands.
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Monthly manta net trawls at seven nearshore sites around Mallorca found plastic debris in every trawl, with microplastics dominating (74% by count), polyethylene as the most common polymer (70%), and August showing nearly double the debris of other months. The study reveals high spatial heterogeneity and seasonal peaks in nearshore Mediterranean microplastic pollution linked to coastal tourism and ocean dynamics.
Quarterly variability of floating plastic debris in the marine protected area of the Menorca Channel (Spain)
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Floating plastic debris was monitored quarterly over a year in a marine protected area in the Menorca Channel (Spain), revealing seasonal variation tied to wind patterns and ocean currents. Even protected marine areas are not shielded from plastic pollution, with peaks in certain seasons.
Spatio-temporal monitoring of coastal floating marine debris in the Balearic Islands from sea-cleaning boats
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Researchers analyzed a decade of sea-cleaning boat records from the Balearic Islands and found that plastics made up more than half of all floating coastal debris removed, with concentrations peaking in August and clustering in the northwest and southeast coastal zones.
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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.