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Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Detection Methods Marine & Wildlife Sign in to save

Microplastics in the surface waters of a brazilian marine protected area - cagarras archipelago

Zenodo (CERN European Organization for Nuclear Research) 2024
Raquel A. F. Neves, Raquel A. F. Neves, Nathália Rodrigues, Guilherme De Luca, Thuany F. Carvalho, Nicole S. Santos, Maria Eduarda S. Adelino, Luiza Belli Caldas, Luiza Belli Caldas, Agatha Miralha, Raimara S. Gomes, Andreia N. Fernandes, Andreia N. Fernandes, Luciano N. Santos

Summary

Researchers assessed microplastic contamination in surface waters of the Cagarras Archipelago Marine Protected Area (MONA Cagarras) off Rio de Janeiro, Brazil, using a manta trawl with 68 µm mesh deployed from a motorized vessel. The study examined whether this no-take MPA designated as a biodiversity Hope Spot is subject to microplastic pollution from surrounding urban waters.

Plastic waste affects several coastal and marine ecosystems in the world. Cagarras Archipelago, a no-take MPA in the Rio de Janeiro - Southeast Brazil, was designated as a Natural Monument (MONA Cagarras) and, more recently, recognized as a Hope Spot for biodiversity conservation. This study aimed to assess microplastic contamination in MONA Cagarras and surrounding waters. Water sampling was conducted using a Manta trawl, with a net mesh size of 68 μm, deployed from the side of a motorized vessel. Two independent samplings with a flowmeter coupled in the trawl were conducted around the Palmas (4 km distant from the coast), Comprida (4.8 km distant from the coast), and Redonda (8.5 km distant from the coast) islands For the first time, microplastics were detected in the surface waters of Comprida, Palmas and Redonda islands from MONA Cagarras at mean concentrations (± SD) of 0.0033 (± 0.0009), 0.0020 (± 0.0003) and 0.0058 (± 0.0012) particles L-1, respectively. Fragments and black particle were the most frequently found shapes and colors in samples, respectively. µ-FTIR analysis of representative particles (n=161, 10.3 Also see: https://micro2024.sciencesconf.org/559166/document

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