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Freshwater insects of different feeding guilds ingest microplastics in two Gulf of Guinea tributaries in Nigeria

Plastic pollution has enormous impacts on freshwater and marine ecosystem health, and it is one of the topmost environmental concerns of the current geological period (i.e. the Anthropocene). Thus, the goal of our study was to provide baseline information and bridge the information gap on the occurr...

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Autores principales: Akindele, Emmanuel O., Ehlers, Sonja M., Koop, Jochen H. E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7417413/
https://www.ncbi.nlm.nih.gov/pubmed/32577960
http://dx.doi.org/10.1007/s11356-020-08763-8
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author Akindele, Emmanuel O.
Ehlers, Sonja M.
Koop, Jochen H. E.
author_facet Akindele, Emmanuel O.
Ehlers, Sonja M.
Koop, Jochen H. E.
author_sort Akindele, Emmanuel O.
collection PubMed
description Plastic pollution has enormous impacts on freshwater and marine ecosystem health, and it is one of the topmost environmental concerns of the current geological period (i.e. the Anthropocene). Thus, the goal of our study was to provide baseline information and bridge the information gap on the occurrence of microplastics (MPs) in African freshwater systems, using two tributaries of the Gulf of Guinea (Ogun and Osun Rivers) in Nigeria as a case study and three freshwater insect species of different feeding guilds as bioindicators. A total of 29 individuals of the insect species were chemically digested and subsequently analysed for MP presence under a digital microscope and a micro-Fourier-transform infrared (μFTIR) spectroscope. Collector-gatherers (Chironomus sp. and Siphlonurus sp.) recorded the highest MP load per gram wet weight, while the predatory Lestes viridis recorded the lowest. The highest diversity of polymers was recorded in Chironomus sp. of Ogun River, i.e. styrene ethylene butylene styrene, acrylonitrile butadiene styrene (ABS), chlorinated polyethylene, polypropylene (PP), and polyester, while two polymers each were recorded in Siphlonurus sp. (i.e. polyester and ABS) and L. viridis (i.e. polyester and PP) of Osun River. We conclude that collector-gatherers like Chironomus sp. and Siphlonurus sp. could be best employed as MP bioindicators in freshwater systems. However, their suitability as MP bioindicators should be further investigated in different freshwater ecosystems worldwide. [Figure: see text]
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spelling pubmed-74174132020-08-17 Freshwater insects of different feeding guilds ingest microplastics in two Gulf of Guinea tributaries in Nigeria Akindele, Emmanuel O. Ehlers, Sonja M. Koop, Jochen H. E. Environ Sci Pollut Res Int Short Research and Discussion Article Plastic pollution has enormous impacts on freshwater and marine ecosystem health, and it is one of the topmost environmental concerns of the current geological period (i.e. the Anthropocene). Thus, the goal of our study was to provide baseline information and bridge the information gap on the occurrence of microplastics (MPs) in African freshwater systems, using two tributaries of the Gulf of Guinea (Ogun and Osun Rivers) in Nigeria as a case study and three freshwater insect species of different feeding guilds as bioindicators. A total of 29 individuals of the insect species were chemically digested and subsequently analysed for MP presence under a digital microscope and a micro-Fourier-transform infrared (μFTIR) spectroscope. Collector-gatherers (Chironomus sp. and Siphlonurus sp.) recorded the highest MP load per gram wet weight, while the predatory Lestes viridis recorded the lowest. The highest diversity of polymers was recorded in Chironomus sp. of Ogun River, i.e. styrene ethylene butylene styrene, acrylonitrile butadiene styrene (ABS), chlorinated polyethylene, polypropylene (PP), and polyester, while two polymers each were recorded in Siphlonurus sp. (i.e. polyester and ABS) and L. viridis (i.e. polyester and PP) of Osun River. We conclude that collector-gatherers like Chironomus sp. and Siphlonurus sp. could be best employed as MP bioindicators in freshwater systems. However, their suitability as MP bioindicators should be further investigated in different freshwater ecosystems worldwide. [Figure: see text] Springer Berlin Heidelberg 2020-06-23 2020 /pmc/articles/PMC7417413/ /pubmed/32577960 http://dx.doi.org/10.1007/s11356-020-08763-8 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Short Research and Discussion Article
Akindele, Emmanuel O.
Ehlers, Sonja M.
Koop, Jochen H. E.
Freshwater insects of different feeding guilds ingest microplastics in two Gulf of Guinea tributaries in Nigeria
title Freshwater insects of different feeding guilds ingest microplastics in two Gulf of Guinea tributaries in Nigeria
title_full Freshwater insects of different feeding guilds ingest microplastics in two Gulf of Guinea tributaries in Nigeria
title_fullStr Freshwater insects of different feeding guilds ingest microplastics in two Gulf of Guinea tributaries in Nigeria
title_full_unstemmed Freshwater insects of different feeding guilds ingest microplastics in two Gulf of Guinea tributaries in Nigeria
title_short Freshwater insects of different feeding guilds ingest microplastics in two Gulf of Guinea tributaries in Nigeria
title_sort freshwater insects of different feeding guilds ingest microplastics in two gulf of guinea tributaries in nigeria
topic Short Research and Discussion Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7417413/
https://www.ncbi.nlm.nih.gov/pubmed/32577960
http://dx.doi.org/10.1007/s11356-020-08763-8
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