We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Posidonia Spheroids Intercepting Plastic Litter: Implications for Beach Clean-Ups
AI summary Read the abstract
Posidonia seagrass spheroids — natural balls of fibrous seagrass debris that wash up on Mediterranean beaches — trap significant quantities of plastic litter, averaging 2.5 items per spheroid including fibers and fragments as small as 0.1 mm. The study recommends that beach clean-up programs specifically target and remove all spheroids to prevent them from disintegrating and releasing their trapped plastic back into the sea.
This study represents the first assessment of plastic waste within Posidonia spheroids on four sandy, Mediterranean beaches, each characterized by varying levels of anthropogenic influence. Fifty-five (68.7%) spheroids, out of eighty examined, included plastic litter. A total of 202 plastic items were isolated. Plastic abundance was 2.5 items/spheroid corresponding to 132 items per kilogram. The length of plastic items ranged from 0.1 to 50 mm. Fibers, tangled fibers and fragments were the most common shapes. The spheroids exhibited a substantial capacity for trapping plastic waste, with notable differences among the beaches. Our results underscore the significance of implementing a beach clean-up plan aimed at removing all spheroids to prevent them from disintegrating and releasing trapped plastic waste into the environment. Manual removal is recommended to safeguard the beaches, and this process should target all spheroids, regardless of their size. This study provides valuable insights that can inform marine litter monitoring programs, contribute to the development of tailored management measures, and support the implementation of specific action plans to mitigate Mediterranean microplastic pollution.
More Papers Like This
Posidonia Spheroids Intercepting Plastic Litter: Implication for Beach Clean-Ups
AI summary Read the abstract
Researchers analyzed seagrass fiber balls (Posidonia spheroids) on four Mediterranean beaches and found they can trap significant quantities of plastic litter — up to 132 plastic items per kilogram of spheroid material. The study recommends that beach clean-up programs specifically target spheroid removal to prevent trapped plastics from being re-released into the sea as the plant material decomposes.
Microplastic entrapment in Posidonia oceanica egagropiles: Spatial patterns from the Costa Blanca (Western Mediterranean, Spain)
AI summary Read the abstract
Scientists found that nearly 90% of natural fiber balls washed up on Mediterranean beaches contained microplastics, mostly tiny fibers from textiles and fishing gear. Surprisingly, "natural" protected beaches had more microplastics than urban ones. This matters because these seagrass ecosystems trap plastic pollution that could otherwise enter the food chain we rely on for seafood.
The trapping of microplastics in the Posidonia oceanica aegagropiles in Tunisian coastal areas—Southern Mediterranean
AI summary Read the abstract
Researchers evaluated microplastic contamination trapped in aegagropiles, the fibrous marine balls formed by Posidonia oceanica seagrass, along Tunisian coastal areas in the southern Mediterranean. The study found that these natural structures effectively trap microplastic particles from beach environments, providing both a useful indicator of local microplastic pollution levels and a natural mechanism for capturing plastic debris.
The Role of Posidonia oceanica Spheroids in Assessing Microplastic Contamination in Coastal Ecosystems
AI summary Read the abstract
Researchers collected 1,300 Posidonia oceanica spheroids along the Italian coast and found that about 35% contained plastic debris, with nearly half of the items classified as microplastics. The most common polymers were nylon and PET, and contamination levels correlated with proximity to wastewater treatment plants. The study suggests that these seagrass spheroids could serve as useful bioindicators for monitoring microplastic pollution in coastal ecosystems.
Posidonia oceanica wrack intercepts plastic debris: First evaluated evidence on Maltese beaches
AI summary Read the abstract
Researchers measured plastic debris trapped within deposits of Posidonia oceanica seagrass wrack on three Maltese beaches, finding up to 102 plastic items per square meter and documenting the seagrass mats as useful indicators of coastal plastic pollution — including micro-, meso-, and macroplastics.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.