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Microplastic Effect Thresholds for Freshwater Benthic Macroinvertebrates
[Image: see text] Now that microplastics have been detected in lakes, rivers, and estuaries all over the globe, evaluating their effects on biota has become an urgent research priority. This is the first study that aims at determining the effect thresholds for a battery of six freshwater benthic mac...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American
Chemical Society
2018
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5822217/ https://www.ncbi.nlm.nih.gov/pubmed/29337537 http://dx.doi.org/10.1021/acs.est.7b05367 |
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author | Redondo-Hasselerharm, Paula E. Falahudin, Dede Peeters, Edwin T. H. M. Koelmans, Albert A. |
author_facet | Redondo-Hasselerharm, Paula E. Falahudin, Dede Peeters, Edwin T. H. M. Koelmans, Albert A. |
author_sort | Redondo-Hasselerharm, Paula E. |
collection | PubMed |
description | [Image: see text] Now that microplastics have been detected in lakes, rivers, and estuaries all over the globe, evaluating their effects on biota has become an urgent research priority. This is the first study that aims at determining the effect thresholds for a battery of six freshwater benthic macroinvertebrates with different species traits, using a wide range of microplastic concentrations. Standardized 28 days single species bioassays were performed under environmentally relevant exposure conditions using polystyrene microplastics (20–500 μm) mixed with sediment at concentrations ranging from 0 to 40% sediment dry weight (dw). Microplastics caused no effects on the survival of Gammarus pulex, Hyalella azteca, Asellus aquaticus, Sphaerium corneum, and Tubifex spp. and no effects were found on the reproduction of Lumbriculus variegatus. No significant differences in growth were found for H. azteca, A. aquaticus, S. corneum, L. variegatus, and Tubifex spp. However, G. pulex showed a significant reduction in growth (EC(10) = 1.07% sediment dw) and microplastic uptake was proportional with microplastic concentrations in sediment. These results indicate that although the risks of environmentally realistic concentrations of microplastics may be low, they still may affect the biodiversity and the functioning of aquatic communities which after all also depend on the sensitive species. |
format | Online Article Text |
id | pubmed-5822217 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | American
Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-58222172018-02-26 Microplastic Effect Thresholds for Freshwater Benthic Macroinvertebrates Redondo-Hasselerharm, Paula E. Falahudin, Dede Peeters, Edwin T. H. M. Koelmans, Albert A. Environ Sci Technol [Image: see text] Now that microplastics have been detected in lakes, rivers, and estuaries all over the globe, evaluating their effects on biota has become an urgent research priority. This is the first study that aims at determining the effect thresholds for a battery of six freshwater benthic macroinvertebrates with different species traits, using a wide range of microplastic concentrations. Standardized 28 days single species bioassays were performed under environmentally relevant exposure conditions using polystyrene microplastics (20–500 μm) mixed with sediment at concentrations ranging from 0 to 40% sediment dry weight (dw). Microplastics caused no effects on the survival of Gammarus pulex, Hyalella azteca, Asellus aquaticus, Sphaerium corneum, and Tubifex spp. and no effects were found on the reproduction of Lumbriculus variegatus. No significant differences in growth were found for H. azteca, A. aquaticus, S. corneum, L. variegatus, and Tubifex spp. However, G. pulex showed a significant reduction in growth (EC(10) = 1.07% sediment dw) and microplastic uptake was proportional with microplastic concentrations in sediment. These results indicate that although the risks of environmentally realistic concentrations of microplastics may be low, they still may affect the biodiversity and the functioning of aquatic communities which after all also depend on the sensitive species. American Chemical Society 2018-01-16 2018-02-20 /pmc/articles/PMC5822217/ /pubmed/29337537 http://dx.doi.org/10.1021/acs.est.7b05367 Text en Copyright © 2018 American Chemical Society This is an open access article published under a Creative Commons Non-Commercial No Derivative Works (CC-BY-NC-ND) Attribution License (http://pubs.acs.org/page/policy/authorchoice_ccbyncnd_termsofuse.html) , which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes. |
spellingShingle | Redondo-Hasselerharm, Paula E. Falahudin, Dede Peeters, Edwin T. H. M. Koelmans, Albert A. Microplastic Effect Thresholds for Freshwater Benthic Macroinvertebrates |
title | Microplastic
Effect Thresholds for Freshwater Benthic
Macroinvertebrates |
title_full | Microplastic
Effect Thresholds for Freshwater Benthic
Macroinvertebrates |
title_fullStr | Microplastic
Effect Thresholds for Freshwater Benthic
Macroinvertebrates |
title_full_unstemmed | Microplastic
Effect Thresholds for Freshwater Benthic
Macroinvertebrates |
title_short | Microplastic
Effect Thresholds for Freshwater Benthic
Macroinvertebrates |
title_sort | microplastic
effect thresholds for freshwater benthic
macroinvertebrates |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5822217/ https://www.ncbi.nlm.nih.gov/pubmed/29337537 http://dx.doi.org/10.1021/acs.est.7b05367 |
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