Estimating the size distribution of plastics ingested by animals

Jams, Ifan B., Windsor, Fredric M. ORCID: https://orcid.org/0000-0001-5030-3470, Poudevigne-Durance, Thomas, Ormerod, Steve J. ORCID: https://orcid.org/0000-0002-8174-302X and Durance, Isabelle ORCID: https://orcid.org/0000-0002-4138-3349 2020. Estimating the size distribution of plastics ingested by animals. Nature Communications 11 , 1594. 10.1038/s41467-020-15406-6

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Abstract

The ingestion of plastics appears to be widespread throughout the animal kingdom with risks to individuals, ecosystems and human health. Despite growing information on the location, abundance and size distribution of plastics in the environment, it cannot be assumed that any given animal will ingest all sizes of plastic encountered. Here, we use published data to develop an allometric relationship between plastic consumption and animal size to estimate the size distribution of plastics feasibly ingested by animals. Based on more than 2000 gut content analyses from animals ranging over three orders of magnitude in size (lengths 9 mm to 10 m), body length alone accounts for 42% of the variance in the length of plastic an animal may ingest and indicates a size ratio of roughly 20:1 between animal body length and the largest plastic the animal may ingest. We expect this work to improve global assessments of plastic pollution risk by introducing a quantifiable link between animals and the plastics they can ingest.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Mathematics Biosciences Water Research Institute (WATER)
Additional Information:	This article is licensed under a Creative Commons Attribution 4.0 International License.
Publisher:	Nature Research
ISSN:	2041-1723
Funders:	NERC
Date of First Compliant Deposit:	31 March 2020
Date of Acceptance:	4 March 2020
Last Modified:	17 Aug 2023 07:22
URI:	https://orca.cardiff.ac.uk/id/eprint/130668

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