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Availability and assessment of microplastic ingestion by marsh birds in Mississippi Gulf Coast tidal marshes
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2021
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Source: Marine Pollution Bulletin, 166, 112187
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Journal Title:Marine Pollution Bulletin
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Description:Millions of tons of plastic enter the environment every year, where much of it concentrates in environmental sinks such as tidal marshes. With prior studies documenting harm to marine fauna caused by this plastic pollution, the need to understand how this novel type of pollution affects estuarine fauna is great. Yet, research on the fate and uptake of plastic pollutants in estuarine ecosystems is sparse. Therefore, we quantified plastic prevalence and ingestion by two species of resident marsh bird, Clapper Rails (Rallus crepitans) and Seaside Sparrows (Ammospiza maritima), in coastal marsh ecosystems within Mississippi. We detected microplastics (plastics smaller than 5 mm) in 64% of marsh sediment samples, 83% of Clapper Rail and 69% of Seaside Sparrow proventriculus samples. Dominant types of microplastics detected in sediment and bird samples were fibers. This study provides the first evidence of microplastic ingestion by marsh birds and its distribution in coastal marshes within Mississippi.
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Source:Marine Pollution Bulletin, 166, 112187
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ISSN:0025-326X
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Rights Information:Accepted Manuscript
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Compliance:Library
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