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Assessing the microplastic retention and distribution in the water column in mesoscale eddies south of the Canary Islands
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Researchers conducted the first in situ observations of microplastic concentrations and vertical distribution within mesoscale ocean eddies south of the Canary Islands, investigating how these rotating current structures retain and redistribute microplastics through the water column.
Microplastic (MP) pollution has become a major concern in the global ocean, its vertical distribution and retention within mesoscale structures remains unknown. In this study, we present the first in situ observations of microplastic concentrations th
More Papers Like This
Assessing the microplastic retention and distribution in the water column in mesoscale eddies south of the Canary Islands
AI summary Read the abstract
Researchers conducted the first in situ observations of microplastic concentrations within mesoscale eddies south of the Canary Islands, finding that these oceanographic structures influence the vertical distribution and retention of microplastics in the water column. The study provides new evidence that mesoscale eddies act as accumulation zones, affecting how microplastics are transported and redistributed in the open ocean.
Impact of ocean dynamics on microplastics distribution in two oceanic eddies
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Researchers sampled microplastic distributions within an anticyclonic and a cyclonic oceanic eddy downstream of the Canary Islands during 2021 and 2022 campaigns, finding that eddy circulation patterns concentrate microplastics differently depending on eddy rotation direction and that eddies act as dynamic accumulation zones.
Microplastics in the open ocean at different depths in the Canary region: Origin, fate, and composition
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Researchers characterized the origin, fate, and polymer composition of microplastics collected at different depths in the open ocean of the Canary region, examining the role of mesoscale oceanographic structures such as eddies in transporting plastic particles beyond the surface layer.
Microplastics in the open ocean at different depths in the Canary region: Origin, fate, and composition
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Researchers characterized microplastics at multiple depths in the open ocean of the Canary region, examining how mesoscale oceanographic structures such as eddies, upwelling filaments, and wind-driven advection distribute particles beyond the surface and through the water column. They found microplastics at all sampled depths with polymer composition and abundance varying by depth, indicating that subsurface transport processes significantly affect microplastic fate in the open ocean.
Coherent eddies redistribute microplastics across the water column
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Scientists studying swirling ocean currents called eddies near the Canary Islands found that these massive rotating water masses can trap up to three times more microplastic pieces than surrounding waters, pulling plastic bits down as deep as 1,200 meters (nearly 4,000 feet). This matters because it shows the ocean's interior, not just the surface, is a major hidden storage zone for plastic pollution, meaning the seafood and marine ecosystems we depend on may be exposed to more microplastics than previously realized, even far below where we can see them.
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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.