The world is your oyster: low-dose, long-term microplastic exposure of juvenile oysters
Bivalve filter feeders, such as oysters, filter large volumes of water and are particularly exposed to microplastics (MP). Consequently, these animals digest and assimilate high levels of MP in their bodies that may likely impact their physiology, and potentially affect shellfish stocks, benthic hab...
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ftdoajarticles:oai:doaj.org/article:0279e5159f3f49bc9faed71e9d294c91 2023-05-15T15:58:51+02:00 The world is your oyster: low-dose, long-term microplastic exposure of juvenile oysters Maes Thomas Barry Jon Stenton Craig Roberts Edward Hicks Ruth Bignell John Vethaak A. Dick Leslie A. Heather Sanders Matthew 2020-01-01T00:00:00Z https://doi.org/10.1016/j.heliyon.2019.e03103 https://doaj.org/article/0279e5159f3f49bc9faed71e9d294c91 EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S2405844019367623 https://doaj.org/toc/2405-8440 2405-8440 doi:10.1016/j.heliyon.2019.e03103 https://doaj.org/article/0279e5159f3f49bc9faed71e9d294c91 Heliyon, Vol 6, Iss 1, Pp e03103- (2020) Aquaculture Aquatic ecology Ecological health Environmental hazard Environmental health Environmental science Science (General) Q1-390 Social sciences (General) H1-99 article 2020 ftdoajarticles https://doi.org/10.1016/j.heliyon.2019.e03103 2022-12-31T03:52:59Z Bivalve filter feeders, such as oysters, filter large volumes of water and are particularly exposed to microplastics (MP). Consequently, these animals digest and assimilate high levels of MP in their bodies that may likely impact their physiology, and potentially affect shellfish stocks, benthic habitats and, indirectly, the health status of the marine ecosystem and human consumers. In this study we exposed juvenile oysters, Crassostrea gigas, to 3 different MP concentrations (104, 105 and 106 particles L−1), represented by 6μm Polystyrene (PS) microbeads, compared to a control treatment receiving no MP. The study ran for a period of 80 days to test for the impacts of MP on growth, Condition Index and Lysosomal Stability. From histological analysis, microbeads were detected in the intestines of exposed oysters and in the digestive tubules, but no cellular inflammatory features were observed over time. Weight and shell length remained comparable between the different treatments and control. We found that Condition Index in the highest concentration increased initially but significantly reduced over time. The oysters in the highest MP exposure also showed the lowest mean Lysosomal Stability score throughout the experiment. Lysosomes play a vital role in the cells defense mechanisms and breakdown of constituents, crucial for the oysters’ wellbeing. Most importantly, we detected an increased mortality in those oysters who were chronically exposed to the highest loads of MP. Article in Journal/Newspaper Crassostrea gigas Directory of Open Access Journals: DOAJ Articles Heliyon 6 1 e03103 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Aquaculture Aquatic ecology Ecological health Environmental hazard Environmental health Environmental science Science (General) Q1-390 Social sciences (General) H1-99 |
spellingShingle |
Aquaculture Aquatic ecology Ecological health Environmental hazard Environmental health Environmental science Science (General) Q1-390 Social sciences (General) H1-99 Maes Thomas Barry Jon Stenton Craig Roberts Edward Hicks Ruth Bignell John Vethaak A. Dick Leslie A. Heather Sanders Matthew The world is your oyster: low-dose, long-term microplastic exposure of juvenile oysters |
topic_facet |
Aquaculture Aquatic ecology Ecological health Environmental hazard Environmental health Environmental science Science (General) Q1-390 Social sciences (General) H1-99 |
description |
Bivalve filter feeders, such as oysters, filter large volumes of water and are particularly exposed to microplastics (MP). Consequently, these animals digest and assimilate high levels of MP in their bodies that may likely impact their physiology, and potentially affect shellfish stocks, benthic habitats and, indirectly, the health status of the marine ecosystem and human consumers. In this study we exposed juvenile oysters, Crassostrea gigas, to 3 different MP concentrations (104, 105 and 106 particles L−1), represented by 6μm Polystyrene (PS) microbeads, compared to a control treatment receiving no MP. The study ran for a period of 80 days to test for the impacts of MP on growth, Condition Index and Lysosomal Stability. From histological analysis, microbeads were detected in the intestines of exposed oysters and in the digestive tubules, but no cellular inflammatory features were observed over time. Weight and shell length remained comparable between the different treatments and control. We found that Condition Index in the highest concentration increased initially but significantly reduced over time. The oysters in the highest MP exposure also showed the lowest mean Lysosomal Stability score throughout the experiment. Lysosomes play a vital role in the cells defense mechanisms and breakdown of constituents, crucial for the oysters’ wellbeing. Most importantly, we detected an increased mortality in those oysters who were chronically exposed to the highest loads of MP. |
format |
Article in Journal/Newspaper |
author |
Maes Thomas Barry Jon Stenton Craig Roberts Edward Hicks Ruth Bignell John Vethaak A. Dick Leslie A. Heather Sanders Matthew |
author_facet |
Maes Thomas Barry Jon Stenton Craig Roberts Edward Hicks Ruth Bignell John Vethaak A. Dick Leslie A. Heather Sanders Matthew |
author_sort |
Maes Thomas |
title |
The world is your oyster: low-dose, long-term microplastic exposure of juvenile oysters |
title_short |
The world is your oyster: low-dose, long-term microplastic exposure of juvenile oysters |
title_full |
The world is your oyster: low-dose, long-term microplastic exposure of juvenile oysters |
title_fullStr |
The world is your oyster: low-dose, long-term microplastic exposure of juvenile oysters |
title_full_unstemmed |
The world is your oyster: low-dose, long-term microplastic exposure of juvenile oysters |
title_sort |
world is your oyster: low-dose, long-term microplastic exposure of juvenile oysters |
publisher |
Elsevier |
publishDate |
2020 |
url |
https://doi.org/10.1016/j.heliyon.2019.e03103 https://doaj.org/article/0279e5159f3f49bc9faed71e9d294c91 |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
Heliyon, Vol 6, Iss 1, Pp e03103- (2020) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S2405844019367623 https://doaj.org/toc/2405-8440 2405-8440 doi:10.1016/j.heliyon.2019.e03103 https://doaj.org/article/0279e5159f3f49bc9faed71e9d294c91 |
op_doi |
https://doi.org/10.1016/j.heliyon.2019.e03103 |
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Heliyon |
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6 |
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1 |
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e03103 |
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