Plastic ingestion by freshwater turtles: a review and call to action

Abstract Plastic pollution, and especially plastic ingestion by animals, is a serious global issue. This problem is well documented in marine systems, but it is relatively understudied in freshwater systems. For turtles, it is unknown how plastic ingestion compares between marine and non-marine spec...

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Autores principales:	Adam G. Clause, Aaron J. Celestian, Gregory B. Pauly
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5fc287f4edc94efb8e1bbd927d46a9f5
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spelling	oai:doaj.org-article:5fc287f4edc94efb8e1bbd927d46a9f52021-12-02T16:36:11ZPlastic ingestion by freshwater turtles: a review and call to action10.1038/s41598-021-84846-x2045-2322https://doaj.org/article/5fc287f4edc94efb8e1bbd927d46a9f52021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84846-xhttps://doaj.org/toc/2045-2322Abstract Plastic pollution, and especially plastic ingestion by animals, is a serious global issue. This problem is well documented in marine systems, but it is relatively understudied in freshwater systems. For turtles, it is unknown how plastic ingestion compares between marine and non-marine species. We review the relevant turtle dietary literature, and find that plastic ingestion is reported for all 7 marine turtle species, but only 5 of 352 non-marine turtle species. In the last 10 years, despite marine turtles representing just 2% of all turtle species, almost 50% of relevant turtle dietary studies involved only marine turtles. These results suggest that the potential threat of plastic ingestion is poorly studied in non-marine turtles. We also examine plastic ingestion frequency in a freshwater turtle population, finding that 7.7% of 65 turtles had ingested plastic. However, plastic-resembling organic material would have inflated our frequency results up to 40% higher were it not for verification using Raman spectroscopy. Additionally, we showcase how non-native turtles can be used as a proxy for understanding the potential for plastic ingestion by co-occurring native turtles of conservation concern. We conclude with recommendations for how scientists studying non-marine turtles can improve the implementation, quality, and discoverability of plastic ingestion research.Adam G. ClauseAaron J. CelestianGregory B. PaulyNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Adam G. Clause Aaron J. Celestian Gregory B. Pauly Plastic ingestion by freshwater turtles: a review and call to action
description	Abstract Plastic pollution, and especially plastic ingestion by animals, is a serious global issue. This problem is well documented in marine systems, but it is relatively understudied in freshwater systems. For turtles, it is unknown how plastic ingestion compares between marine and non-marine species. We review the relevant turtle dietary literature, and find that plastic ingestion is reported for all 7 marine turtle species, but only 5 of 352 non-marine turtle species. In the last 10 years, despite marine turtles representing just 2% of all turtle species, almost 50% of relevant turtle dietary studies involved only marine turtles. These results suggest that the potential threat of plastic ingestion is poorly studied in non-marine turtles. We also examine plastic ingestion frequency in a freshwater turtle population, finding that 7.7% of 65 turtles had ingested plastic. However, plastic-resembling organic material would have inflated our frequency results up to 40% higher were it not for verification using Raman spectroscopy. Additionally, we showcase how non-native turtles can be used as a proxy for understanding the potential for plastic ingestion by co-occurring native turtles of conservation concern. We conclude with recommendations for how scientists studying non-marine turtles can improve the implementation, quality, and discoverability of plastic ingestion research.
format	article
author	Adam G. Clause Aaron J. Celestian Gregory B. Pauly
author_facet	Adam G. Clause Aaron J. Celestian Gregory B. Pauly
author_sort	Adam G. Clause
title	Plastic ingestion by freshwater turtles: a review and call to action
title_short	Plastic ingestion by freshwater turtles: a review and call to action
title_full	Plastic ingestion by freshwater turtles: a review and call to action
title_fullStr	Plastic ingestion by freshwater turtles: a review and call to action
title_full_unstemmed	Plastic ingestion by freshwater turtles: a review and call to action
title_sort	plastic ingestion by freshwater turtles: a review and call to action
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/5fc287f4edc94efb8e1bbd927d46a9f5
work_keys_str_mv	AT adamgclause plasticingestionbyfreshwaterturtlesareviewandcalltoaction AT aaronjcelestian plasticingestionbyfreshwaterturtlesareviewandcalltoaction AT gregorybpauly plasticingestionbyfreshwaterturtlesareviewandcalltoaction
_version_	1718383635659227136

Plastic ingestion by freshwater turtles: a review and call to action

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