Microplastic burden in invasive signal crayfish (Pacifastacus leniusculus) increases along a stream urbanization gradient

Abstract Microplastics are a globally pervasive pollutant with the potential to directly impact species and accumulate in ecosystems. However, there remains a relative paucity of research addressing their accumulation in freshwater ecosystems and a near absence of work in crayfish, despite their hig...

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Main Authors: Abigail R. Dent, Daniel D. A. Chadwick, Lawrence J. B. Eagle, Alex N. Gould, Matthew Harwood, Carl D. Sayer, Neil L. Rose
Format: Article
Language:English
Published: Wiley 2023-05-01
Series:Ecology and Evolution
Subjects:
Online Access:https://doi.org/10.1002/ece3.10041
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author Abigail R. Dent
Daniel D. A. Chadwick
Lawrence J. B. Eagle
Alex N. Gould
Matthew Harwood
Carl D. Sayer
Neil L. Rose
author_facet Abigail R. Dent
Daniel D. A. Chadwick
Lawrence J. B. Eagle
Alex N. Gould
Matthew Harwood
Carl D. Sayer
Neil L. Rose
author_sort Abigail R. Dent
collection DOAJ
description Abstract Microplastics are a globally pervasive pollutant with the potential to directly impact species and accumulate in ecosystems. However, there remains a relative paucity of research addressing their accumulation in freshwater ecosystems and a near absence of work in crayfish, despite their high ecological and economic importance. This study investigated the presence of microplastics in the invasive signal crayfish Pacifastacus leniusculus along a stream urbanization gradient. The results demonstrate a ubiquitous presence of microplastics in crayfish digestive tracts at all sites and provide the first evidence of microplastic accumulation in tail tissue. Evidence of a positive linear trend was demonstrated between microplastic concentration in crayfish and upstream urban area size in generalized linear models. Evidence for a positive effect of the upstream urban area and a negative effect of crayfish length on microplastic concentrations in crayfish was demonstrated in multiple generalized linear regression models. Our results extend the current understanding of microplastics presence in freshwater ecosystems and demonstrate their presence in crayfish in the wild for the first time.
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spelling doaj.art-42ecf689ac4747c0a7fc9a5e5f3515862023-07-20T08:50:55ZengWileyEcology and Evolution2045-77582023-05-01135n/an/a10.1002/ece3.10041Microplastic burden in invasive signal crayfish (Pacifastacus leniusculus) increases along a stream urbanization gradientAbigail R. Dent0Daniel D. A. Chadwick1Lawrence J. B. Eagle2Alex N. Gould3Matthew Harwood4Carl D. Sayer5Neil L. Rose6Department of Geography University College London London UKDepartment of Geography University College London London UKDepartment of Geography University College London London UKPBA Applied Ecology Settle, North Yorkshire UKDepartment of Geography University College London London UKDepartment of Geography University College London London UKDepartment of Geography University College London London UKAbstract Microplastics are a globally pervasive pollutant with the potential to directly impact species and accumulate in ecosystems. However, there remains a relative paucity of research addressing their accumulation in freshwater ecosystems and a near absence of work in crayfish, despite their high ecological and economic importance. This study investigated the presence of microplastics in the invasive signal crayfish Pacifastacus leniusculus along a stream urbanization gradient. The results demonstrate a ubiquitous presence of microplastics in crayfish digestive tracts at all sites and provide the first evidence of microplastic accumulation in tail tissue. Evidence of a positive linear trend was demonstrated between microplastic concentration in crayfish and upstream urban area size in generalized linear models. Evidence for a positive effect of the upstream urban area and a negative effect of crayfish length on microplastic concentrations in crayfish was demonstrated in multiple generalized linear regression models. Our results extend the current understanding of microplastics presence in freshwater ecosystems and demonstrate their presence in crayfish in the wild for the first time.https://doi.org/10.1002/ece3.10041freshwater ecosystemmacroinvertebratemicroplasticsPacifastacus leniusculussignal crayfishurbanization
spellingShingle Abigail R. Dent
Daniel D. A. Chadwick
Lawrence J. B. Eagle
Alex N. Gould
Matthew Harwood
Carl D. Sayer
Neil L. Rose
Microplastic burden in invasive signal crayfish (Pacifastacus leniusculus) increases along a stream urbanization gradient
Ecology and Evolution
freshwater ecosystem
macroinvertebrate
microplastics
Pacifastacus leniusculus
signal crayfish
urbanization
title Microplastic burden in invasive signal crayfish (Pacifastacus leniusculus) increases along a stream urbanization gradient
title_full Microplastic burden in invasive signal crayfish (Pacifastacus leniusculus) increases along a stream urbanization gradient
title_fullStr Microplastic burden in invasive signal crayfish (Pacifastacus leniusculus) increases along a stream urbanization gradient
title_full_unstemmed Microplastic burden in invasive signal crayfish (Pacifastacus leniusculus) increases along a stream urbanization gradient
title_short Microplastic burden in invasive signal crayfish (Pacifastacus leniusculus) increases along a stream urbanization gradient
title_sort microplastic burden in invasive signal crayfish pacifastacus leniusculus increases along a stream urbanization gradient
topic freshwater ecosystem
macroinvertebrate
microplastics
Pacifastacus leniusculus
signal crayfish
urbanization
url https://doi.org/10.1002/ece3.10041
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