Elemental Composition of Particulate Matter in the Euphotic and Benthic Boundary Layers of the Barents and Norwegian Seas
The increasing influence of Atlantic inflows in the Arctic Ocean in recent decades has had a potential impact on regional biogeochemical cycles of major and trace elements. The warm and salty Atlantic water, entering the Eurasian Basin through the Norwegian Sea margin and the Barents Sea, affects pa...
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2023-01-01
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author | Dina P. Starodymova Marina D. Kravchishina Anastasia I. Kochenkova Alexey S. Lokhov Natalia M. Makhnovich Svetlana V. Vazyulya |
author_facet | Dina P. Starodymova Marina D. Kravchishina Anastasia I. Kochenkova Alexey S. Lokhov Natalia M. Makhnovich Svetlana V. Vazyulya |
author_sort | Dina P. Starodymova |
collection | DOAJ |
description | The increasing influence of Atlantic inflows in the Arctic Ocean in recent decades has had a potential impact on regional biogeochemical cycles of major and trace elements. The warm and salty Atlantic water, entering the Eurasian Basin through the Norwegian Sea margin and the Barents Sea, affects particle transport, sink, phyto-, and zooplankton community structure and could have far-reaching consequences for the marine ecosystems. This study discusses the elemental composition of suspended particulate matter and fluffy-layer suspended matter derived from samples collected in the Barents Sea and northern Norwegian Sea in August 2017. The mosaic distribution of SPM elemental composition is mainly determined by two factors: (i) The essential spatial variability of biological processes (primary production, abundance, and phytoplankton composition) and (ii) differences in the input of terrigenous sedimentary matter to the sea area from drainage sources (weak river runoff, melting of archipelago glaciers, etc.). The distribution of lithogenic, bioessential, and redox-sensitive groups of elements in the particulate matter was studied at full-depth profiles. Marine cycling of strontium in the Barents Sea is shown to be significantly affected by increasing coccolithophorid bloom, which is associated with Atlantic water. Mn, Cu, Cd, and Ba significantly enrich the suspended particulate matter of the benthic nepheloid layer relative to the fluffy layer particulate matter within the benthic boundary layer. |
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issn | 2077-1312 |
language | English |
last_indexed | 2024-03-09T12:06:53Z |
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series | Journal of Marine Science and Engineering |
spelling | doaj.art-a596462220e54c2c920ac4e2c7ad8d0e2023-11-30T22:56:41ZengMDPI AGJournal of Marine Science and Engineering2077-13122023-01-011116510.3390/jmse11010065Elemental Composition of Particulate Matter in the Euphotic and Benthic Boundary Layers of the Barents and Norwegian SeasDina P. Starodymova0Marina D. Kravchishina1Anastasia I. Kochenkova2Alexey S. Lokhov3Natalia M. Makhnovich4Svetlana V. Vazyulya5Shirshov Institute of Oceanology, Russian Academy of Sciences, 36 Nakhimovsky Prosp., Moscow 117997, RussiaShirshov Institute of Oceanology, Russian Academy of Sciences, 36 Nakhimovsky Prosp., Moscow 117997, RussiaShirshov Institute of Oceanology, Russian Academy of Sciences, 36 Nakhimovsky Prosp., Moscow 117997, RussiaShirshov Institute of Oceanology, Russian Academy of Sciences, 36 Nakhimovsky Prosp., Moscow 117997, RussiaShirshov Institute of Oceanology, Russian Academy of Sciences, 36 Nakhimovsky Prosp., Moscow 117997, RussiaShirshov Institute of Oceanology, Russian Academy of Sciences, 36 Nakhimovsky Prosp., Moscow 117997, RussiaThe increasing influence of Atlantic inflows in the Arctic Ocean in recent decades has had a potential impact on regional biogeochemical cycles of major and trace elements. The warm and salty Atlantic water, entering the Eurasian Basin through the Norwegian Sea margin and the Barents Sea, affects particle transport, sink, phyto-, and zooplankton community structure and could have far-reaching consequences for the marine ecosystems. This study discusses the elemental composition of suspended particulate matter and fluffy-layer suspended matter derived from samples collected in the Barents Sea and northern Norwegian Sea in August 2017. The mosaic distribution of SPM elemental composition is mainly determined by two factors: (i) The essential spatial variability of biological processes (primary production, abundance, and phytoplankton composition) and (ii) differences in the input of terrigenous sedimentary matter to the sea area from drainage sources (weak river runoff, melting of archipelago glaciers, etc.). The distribution of lithogenic, bioessential, and redox-sensitive groups of elements in the particulate matter was studied at full-depth profiles. Marine cycling of strontium in the Barents Sea is shown to be significantly affected by increasing coccolithophorid bloom, which is associated with Atlantic water. Mn, Cu, Cd, and Ba significantly enrich the suspended particulate matter of the benthic nepheloid layer relative to the fluffy layer particulate matter within the benthic boundary layer.https://www.mdpi.com/2077-1312/11/1/65suspended particulate mattertrace elementsmajor elementseuphotic layerfluffy layerparticulate form |
spellingShingle | Dina P. Starodymova Marina D. Kravchishina Anastasia I. Kochenkova Alexey S. Lokhov Natalia M. Makhnovich Svetlana V. Vazyulya Elemental Composition of Particulate Matter in the Euphotic and Benthic Boundary Layers of the Barents and Norwegian Seas Journal of Marine Science and Engineering suspended particulate matter trace elements major elements euphotic layer fluffy layer particulate form |
title | Elemental Composition of Particulate Matter in the Euphotic and Benthic Boundary Layers of the Barents and Norwegian Seas |
title_full | Elemental Composition of Particulate Matter in the Euphotic and Benthic Boundary Layers of the Barents and Norwegian Seas |
title_fullStr | Elemental Composition of Particulate Matter in the Euphotic and Benthic Boundary Layers of the Barents and Norwegian Seas |
title_full_unstemmed | Elemental Composition of Particulate Matter in the Euphotic and Benthic Boundary Layers of the Barents and Norwegian Seas |
title_short | Elemental Composition of Particulate Matter in the Euphotic and Benthic Boundary Layers of the Barents and Norwegian Seas |
title_sort | elemental composition of particulate matter in the euphotic and benthic boundary layers of the barents and norwegian seas |
topic | suspended particulate matter trace elements major elements euphotic layer fluffy layer particulate form |
url | https://www.mdpi.com/2077-1312/11/1/65 |
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