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Article

Incidence of Watershed Land Use on the Consumption of Meso and Microplastics by Fish Communities in Uruguayan Lowland Streams

1
Departamento de Ecología y Gestión Ambiental, Centro Universitario Regional Este, Maldonado 20000, CP, Uruguay
2
Centro Interdisciplinario Manejo Costero Integrado del Cono Sur, Centro Universitario Regional del Este, Maldonado 20000, CP, Uruguay
*
Author to whom correspondence should be addressed.
Academic Editors: Pietro Volta and Erik Jeppesen
Water 2021, 13(11), 1575; https://doi.org/10.3390/w13111575
Received: 4 May 2021 / Revised: 25 May 2021 / Accepted: 30 May 2021 / Published: 2 June 2021
(This article belongs to the Special Issue Impacts of Human Activities and Climate Change on Freshwater Fish)
Physical-chemical and biologicaldiversity of streams are influenced by the land use in their watersheds. Plastics currently make up the most important waste asset, representing an important part of the transported and accumulated material in water courses. This work analyzes the consumption of plastics debris by the fish communities in streams with two contrasting types of land use. We worked with threestreams impacted by urbanization and threeby extensive ranching. The stomach and intestinal contents of 309 individuals of 29 species were analyzed, by a modified alkaline digestion, and observed under a stereo microscope with polarized light. A total of 373 plastic itemswere found, of which the majority corresponded to fibers (318). A significant difference was found between the percentage of individuals that consumed plastic debrisbetween both systems (51.6% in ranchers and 76.6% in urban, p = 0.014 Mood’s Median), but no difference was found in the average ingested per individual. This study establishes the first baseline on plastic debris consumption by fish in Uruguayan streams, showing the extent of the plastic and microplastic pollution problem. Although there are differences between the analyzed sites, we also observed significant contamination in streams far from urbanization. View Full-Text
Keywords: urban streams; plastic pollution; microplastic consumption; freshwater fishes; gut content urban streams; plastic pollution; microplastic consumption; freshwater fishes; gut content
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MDPI and ACS Style

Vidal, C.; Lozoya, J.P.; Tesitore, G.; Goyenola, G.; Teixeira-de-Mello, F. Incidence of Watershed Land Use on the Consumption of Meso and Microplastics by Fish Communities in Uruguayan Lowland Streams. Water 2021, 13, 1575. https://doi.org/10.3390/w13111575

AMA Style

Vidal C, Lozoya JP, Tesitore G, Goyenola G, Teixeira-de-Mello F. Incidence of Watershed Land Use on the Consumption of Meso and Microplastics by Fish Communities in Uruguayan Lowland Streams. Water. 2021; 13(11):1575. https://doi.org/10.3390/w13111575

Chicago/Turabian Style

Vidal, Camila, Juan P. Lozoya, Giancarlo Tesitore, Guillermo Goyenola, and Franco Teixeira-de-Mello. 2021. "Incidence of Watershed Land Use on the Consumption of Meso and Microplastics by Fish Communities in Uruguayan Lowland Streams" Water 13, no. 11: 1575. https://doi.org/10.3390/w13111575

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