Surface microplastics in the Kara Sea: from the Kara Gate to the 83�N
Despite ongoing research into microplastics pollution in the Arctic Ocean, the region remains underexplored. In the Eurasian Arctic studies mainly focus on the Barents Sea, while there are only limited and variable data from few stations in the Kara Sea. The study aims to perform an extensive survey...
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Online Access: | http://dx.doi.org/10.3389/fmars.2023.1268879 https://www.frontiersin.org/articles/10.3389/fmars.2023.1268879/full |
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crfrontiers:10.3389/fmars.2023.1268879 2024-09-15T17:54:07+00:00 Surface microplastics in the Kara Sea: from the Kara Gate to the 83�N Berezina, Anfisa Pakhomova, Svetlana Zhdanov, Igor Mekhova, Olga Polivanova, Tatiana Novikov, Matvei Pogojeva, Maria Osadchiev, Alexander Stepanova, Natalia Yakushev, Evgeniy Norsk Institutt for Vannforskning 2023 http://dx.doi.org/10.3389/fmars.2023.1268879 https://www.frontiersin.org/articles/10.3389/fmars.2023.1268879/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Marine Science volume 10 ISSN 2296-7745 journal-article 2023 crfrontiers https://doi.org/10.3389/fmars.2023.1268879 2024-09-03T04:04:53Z Despite ongoing research into microplastics pollution in the Arctic Ocean, the region remains underexplored. In the Eurasian Arctic studies mainly focus on the Barents Sea, while there are only limited and variable data from few stations in the Kara Sea. The study aims to perform an extensive survey of microplastics floating on the sea surface in the Kara Sea. The sampling throughout the Kara Sea was carried out using a neuston net in the August 2021 starting from the Kara Gate strait, reaching 83N latitude and ending in the north-eastern part of the Barents Sea along the border with the Kara Sea. Average abundance of microplastics was 0.124 ± 0.383 items/m 3 in the Kara Sea. The Kara Gate exhibited the highest abundance of microplastics (0.93 ± 0.73 items/m 3 ), suggesting that it is an important source of the microplastics pollution of the Kara Sea. The results suggest that the Ob and Yenisey rivers do not substantially contribute to the microplastic pollution of the Kara Sea due to significantly lower concentrations in the river plume water (0.008 ± 0.009 items/m 3 ) compared to the other regions of the Kara Sea. Further, the river plume differs in chemical composition of microplastics dominated by expanded polystyrene (EPS) particles (52%) in contrast to other regions where the predominant polymer is polyethylene (PE) (64-77%). The study highlights the potential of the Kara Sea to accumulate the microplastics due to its semi-enclosed nature and complex interaction between inflow of waters originating from the North Atlantic and Ob-Yenisey river plume. Article in Journal/Newspaper Arctic Ocean Barents Sea Kara Sea North Atlantic yenisey river Frontiers (Publisher) Frontiers in Marine Science 10 |
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description |
Despite ongoing research into microplastics pollution in the Arctic Ocean, the region remains underexplored. In the Eurasian Arctic studies mainly focus on the Barents Sea, while there are only limited and variable data from few stations in the Kara Sea. The study aims to perform an extensive survey of microplastics floating on the sea surface in the Kara Sea. The sampling throughout the Kara Sea was carried out using a neuston net in the August 2021 starting from the Kara Gate strait, reaching 83N latitude and ending in the north-eastern part of the Barents Sea along the border with the Kara Sea. Average abundance of microplastics was 0.124 ± 0.383 items/m 3 in the Kara Sea. The Kara Gate exhibited the highest abundance of microplastics (0.93 ± 0.73 items/m 3 ), suggesting that it is an important source of the microplastics pollution of the Kara Sea. The results suggest that the Ob and Yenisey rivers do not substantially contribute to the microplastic pollution of the Kara Sea due to significantly lower concentrations in the river plume water (0.008 ± 0.009 items/m 3 ) compared to the other regions of the Kara Sea. Further, the river plume differs in chemical composition of microplastics dominated by expanded polystyrene (EPS) particles (52%) in contrast to other regions where the predominant polymer is polyethylene (PE) (64-77%). The study highlights the potential of the Kara Sea to accumulate the microplastics due to its semi-enclosed nature and complex interaction between inflow of waters originating from the North Atlantic and Ob-Yenisey river plume. |
author2 |
Norsk Institutt for Vannforskning |
format |
Article in Journal/Newspaper |
author |
Berezina, Anfisa Pakhomova, Svetlana Zhdanov, Igor Mekhova, Olga Polivanova, Tatiana Novikov, Matvei Pogojeva, Maria Osadchiev, Alexander Stepanova, Natalia Yakushev, Evgeniy |
spellingShingle |
Berezina, Anfisa Pakhomova, Svetlana Zhdanov, Igor Mekhova, Olga Polivanova, Tatiana Novikov, Matvei Pogojeva, Maria Osadchiev, Alexander Stepanova, Natalia Yakushev, Evgeniy Surface microplastics in the Kara Sea: from the Kara Gate to the 83�N |
author_facet |
Berezina, Anfisa Pakhomova, Svetlana Zhdanov, Igor Mekhova, Olga Polivanova, Tatiana Novikov, Matvei Pogojeva, Maria Osadchiev, Alexander Stepanova, Natalia Yakushev, Evgeniy |
author_sort |
Berezina, Anfisa |
title |
Surface microplastics in the Kara Sea: from the Kara Gate to the 83�N |
title_short |
Surface microplastics in the Kara Sea: from the Kara Gate to the 83�N |
title_full |
Surface microplastics in the Kara Sea: from the Kara Gate to the 83�N |
title_fullStr |
Surface microplastics in the Kara Sea: from the Kara Gate to the 83�N |
title_full_unstemmed |
Surface microplastics in the Kara Sea: from the Kara Gate to the 83�N |
title_sort |
surface microplastics in the kara sea: from the kara gate to the 83�n |
publisher |
Frontiers Media SA |
publishDate |
2023 |
url |
http://dx.doi.org/10.3389/fmars.2023.1268879 https://www.frontiersin.org/articles/10.3389/fmars.2023.1268879/full |
genre |
Arctic Ocean Barents Sea Kara Sea North Atlantic yenisey river |
genre_facet |
Arctic Ocean Barents Sea Kara Sea North Atlantic yenisey river |
op_source |
Frontiers in Marine Science volume 10 ISSN 2296-7745 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fmars.2023.1268879 |
container_title |
Frontiers in Marine Science |
container_volume |
10 |
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1810430324842168320 |