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Assessment of Microplastic and Organophosphate Pesticides Contamination in Fiddler Crabs from a Ramsar Site in the Estuary of Guayas River, Ecuador

Bulletin of Environmental Contamination and Toxicology 2021 70 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 55 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Marcela Cabrera, Mariana V. Capparelli Lipsi Villegas, Mariana V. Capparelli Mariana V. Capparelli Marcela Cabrera, Lipsi Villegas, Mariana V. Capparelli Mariana V. Capparelli Mariana V. Capparelli Mariana V. Capparelli Lipsi Villegas, Lipsi Villegas, Mariana V. Capparelli Marcela Cabrera, Mariana V. Capparelli Marcela Cabrera, Marcela Cabrera, Marcela Cabrera, Mariana V. Capparelli Mariana V. Capparelli Mariana V. Capparelli Mariana V. Capparelli Mariana V. Capparelli Mariana V. Capparelli Mariana V. Capparelli Mariana V. Capparelli Mariana V. Capparelli Mariana V. Capparelli Mariana V. Capparelli Mariana V. Capparelli Mariana V. Capparelli Lipsi Villegas, Mariana V. Capparelli Mariana V. Capparelli Lipsi Villegas, Mariana V. Capparelli Marcela Cabrera, Marcela Cabrera, Mariana V. Capparelli Marcela Cabrera, Marcela Cabrera, Marcela Cabrera, Mariana V. Capparelli Mariana V. Capparelli Marcela Cabrera, Mariana V. Capparelli

Summary

Researchers assessed microplastic and organophosphate pesticide contamination in fiddler crabs from a protected Ramsar wetland site in Ecuador. Microplastics were found in the gills, digestive tract, and hepatopancreas of both crab species studied, while pesticide levels in surrounding water and sediment exceeded safe thresholds by up to 26 times. The study highlights that even protected coastal areas are not spared from microplastic and chemical pollution.

Body Systems

Digestive Hepatic

Study Type Environmental

We assessed the concentration of organophosphate pesticides (OPs) and microplastics (MPs) in water and sediments from the burrows, and tissues of the fiddler crabs Leptuca festae and Minuca ecuadoriensis, from Isla Santay, a Ramsar site in the estuary of the Guayas River, Ecuador. MPs concentrations in the burrows were 660 ± 174.36 items kg (w.w.) and 26 ± 1 items L in collected sediments and water, respectively. Regarding OPs, water and sediment concentrations were up to 26 times above the USEPA thresholds for chronic exposure, indicating environmental risk. MPs were found in tissues collected from both species. The highest abundance was in the gills followed by the digestive tract and hepatopancreas. OPs concentrations in tissues were below the detection limits. Because fiddler crabs are chronically exposed to environmental contamination, they are suitable bioindicators to monitor Isla Santay and to comprehend human impacts in coastal environments of Ecuador.

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