Are we underestimating microplastic abundance in the marine environment? A comparison of microplastic capture with nets of different mesh-size
Microplastic debris is ubiquitous and yet sampling, classifying and enumerating this prolific pollutant in marine waters has proven challenging. Typically, waterborne microplastic sampling is undertaken using nets with a 333 μm mesh, which cannot account for smaller debris. In this study, we provide...
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ftplymouthml:oai:plymsea.ac.uk:8948 2023-05-15T17:33:51+02:00 Are we underestimating microplastic abundance in the marine environment? A comparison of microplastic capture with nets of different mesh-size Lindeque, PK Cole, MJ Coppock, RL Lewis, CN Miller, RZ Watts, AJR Wilson-McNeal, A Wright, SL Galloway, TS 2020-05-03 text http://plymsea.ac.uk/id/eprint/8948/ http://plymsea.ac.uk/id/eprint/8948/1/Lindeque%20Cole%20et%20al%202020.pdf https://doi.org/10.1016/j.envpol.2020.114721 en eng Elsevier http://plymsea.ac.uk/id/eprint/8948/1/Lindeque%20Cole%20et%20al%202020.pdf Lindeque, PK; Cole, MJ; Coppock, RL; Lewis, CN; Miller, RZ; Watts, AJR; Wilson-McNeal, A; Wright, SL; Galloway, TS. 2020 Are we underestimating microplastic abundance in the marine environment? A comparison of microplastic capture with nets of different mesh-size. Environmental Pollution. 114721. https://doi.org/10.1016/j.envpol.2020.114721 <https://doi.org/10.1016/j.envpol.2020.114721> cc_by_4 CC-BY Publication - Article PeerReviewed 2020 ftplymouthml https://doi.org/10.1016/j.envpol.2020.114721 2022-09-13T05:49:44Z Microplastic debris is ubiquitous and yet sampling, classifying and enumerating this prolific pollutant in marine waters has proven challenging. Typically, waterborne microplastic sampling is undertaken using nets with a 333 μm mesh, which cannot account for smaller debris. In this study, we provide an estimate of the extent to which microplastic concentrations are underestimated with traditional sampling. Our efforts focus on coastal waters, where microplastics are predicted to have the greatest influence on marine life, on both sides of the North Atlantic Ocean. Microplastic debris was collected via surface trawls using 100, 333 and 500 μm nets. Our findings show that sampling using nets with a 100 μm mesh resulted in the collection of 2.5-fold and 10-fold greater microplastic concentrations compared with using 333 and 500 μm meshes respectively (P < 0.01). Based on the relationship between microplastic concentrations identified and extrapolation of our data using a power law, we estimate that microplastic concentrations could exceed 3700 microplastics m−3 if a net with a 1 μm mesh size is used. We further identified that use of finer nets resulted in the collection of significantly thinner and shorter microplastic fibres (P < 0.05). These results elucidate that estimates of marine microplastic concentrations could currently be underestimated. Article in Journal/Newspaper North Atlantic Plymouth Marine Science Electronic Archive (PlyMSEA - Plymouth Marine Laboratory, PML) Environmental Pollution 265 114721 |
institution |
Open Polar |
collection |
Plymouth Marine Science Electronic Archive (PlyMSEA - Plymouth Marine Laboratory, PML) |
op_collection_id |
ftplymouthml |
language |
English |
description |
Microplastic debris is ubiquitous and yet sampling, classifying and enumerating this prolific pollutant in marine waters has proven challenging. Typically, waterborne microplastic sampling is undertaken using nets with a 333 μm mesh, which cannot account for smaller debris. In this study, we provide an estimate of the extent to which microplastic concentrations are underestimated with traditional sampling. Our efforts focus on coastal waters, where microplastics are predicted to have the greatest influence on marine life, on both sides of the North Atlantic Ocean. Microplastic debris was collected via surface trawls using 100, 333 and 500 μm nets. Our findings show that sampling using nets with a 100 μm mesh resulted in the collection of 2.5-fold and 10-fold greater microplastic concentrations compared with using 333 and 500 μm meshes respectively (P < 0.01). Based on the relationship between microplastic concentrations identified and extrapolation of our data using a power law, we estimate that microplastic concentrations could exceed 3700 microplastics m−3 if a net with a 1 μm mesh size is used. We further identified that use of finer nets resulted in the collection of significantly thinner and shorter microplastic fibres (P < 0.05). These results elucidate that estimates of marine microplastic concentrations could currently be underestimated. |
format |
Article in Journal/Newspaper |
author |
Lindeque, PK Cole, MJ Coppock, RL Lewis, CN Miller, RZ Watts, AJR Wilson-McNeal, A Wright, SL Galloway, TS |
spellingShingle |
Lindeque, PK Cole, MJ Coppock, RL Lewis, CN Miller, RZ Watts, AJR Wilson-McNeal, A Wright, SL Galloway, TS Are we underestimating microplastic abundance in the marine environment? A comparison of microplastic capture with nets of different mesh-size |
author_facet |
Lindeque, PK Cole, MJ Coppock, RL Lewis, CN Miller, RZ Watts, AJR Wilson-McNeal, A Wright, SL Galloway, TS |
author_sort |
Lindeque, PK |
title |
Are we underestimating microplastic abundance in the marine environment? A comparison of microplastic capture with nets of different mesh-size |
title_short |
Are we underestimating microplastic abundance in the marine environment? A comparison of microplastic capture with nets of different mesh-size |
title_full |
Are we underestimating microplastic abundance in the marine environment? A comparison of microplastic capture with nets of different mesh-size |
title_fullStr |
Are we underestimating microplastic abundance in the marine environment? A comparison of microplastic capture with nets of different mesh-size |
title_full_unstemmed |
Are we underestimating microplastic abundance in the marine environment? A comparison of microplastic capture with nets of different mesh-size |
title_sort |
are we underestimating microplastic abundance in the marine environment? a comparison of microplastic capture with nets of different mesh-size |
publisher |
Elsevier |
publishDate |
2020 |
url |
http://plymsea.ac.uk/id/eprint/8948/ http://plymsea.ac.uk/id/eprint/8948/1/Lindeque%20Cole%20et%20al%202020.pdf https://doi.org/10.1016/j.envpol.2020.114721 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
http://plymsea.ac.uk/id/eprint/8948/1/Lindeque%20Cole%20et%20al%202020.pdf Lindeque, PK; Cole, MJ; Coppock, RL; Lewis, CN; Miller, RZ; Watts, AJR; Wilson-McNeal, A; Wright, SL; Galloway, TS. 2020 Are we underestimating microplastic abundance in the marine environment? A comparison of microplastic capture with nets of different mesh-size. Environmental Pollution. 114721. https://doi.org/10.1016/j.envpol.2020.114721 <https://doi.org/10.1016/j.envpol.2020.114721> |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1016/j.envpol.2020.114721 |
container_title |
Environmental Pollution |
container_volume |
265 |
container_start_page |
114721 |
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1766132488892055552 |