Twenty-One Years of Phytoplankton Bloom Phenology in the Barents, Norwegian, and North Seas
Phytoplankton blooms provide biomass to the marine trophic web, contribute to the carbon removal from the atmosphere and can be deadly when associated with harmful species. This points to the need to understand the phenology of the blooms in the Barents, Norwegian, and North seas. We use satellite c...
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Online Access: | https://hdl.handle.net/11250/2988390 https://doi.org/10.3389/fmars.2021.746327 |
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ftunivbergen:oai:bora.uib.no:11250/2988390 2023-05-15T15:39:07+02:00 Twenty-One Years of Phytoplankton Bloom Phenology in the Barents, Norwegian, and North Seas Silva, Edson Counillon, François Brajard, Julien Korosov, Anton Pettersson, Lasse H Samuelsen, Annette Keenlyside, Noel 2021 application/pdf https://hdl.handle.net/11250/2988390 https://doi.org/10.3389/fmars.2021.746327 eng eng Frontiers Trond Mohn stiftelse: BFS2018TMT01 Norges forskningsråd: 276730 Norges forskningsråd: 318085 Norges forskningsråd: 309562 Notur/NorStore: nn9039k Notur/NorStore: NS9039K urn:issn:2296-7745 https://hdl.handle.net/11250/2988390 https://doi.org/10.3389/fmars.2021.746327 cristin:1955476 Frontiers in Marine Science. 2021, 8, 746327. Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no Copyright 2021 The Author(s) 746327 Frontiers in Marine Science 8 Journal article Peer reviewed 2021 ftunivbergen https://doi.org/10.3389/fmars.2021.746327 2023-03-14T17:40:45Z Phytoplankton blooms provide biomass to the marine trophic web, contribute to the carbon removal from the atmosphere and can be deadly when associated with harmful species. This points to the need to understand the phenology of the blooms in the Barents, Norwegian, and North seas. We use satellite chlorophyll-a from 2000 to 2020 to assess robust climatological and the interannual trends of spring and summer blooms onset, peak day, duration and intensity. Further, we also correlate the interannual variability of the blooms with mixed layer depth (MLD), sea surface temperature (SST), wind speed and suspended particulate matter (SPM) retrieved from models and remote sensing. The climatological spring blooms start on March 10th and end on June 19th. The climatological summer blooms begin on July 13th and end on September 17th. In the Barents Sea, years of shallower mixed layer (ML) driven by both calm waters and higher freshwaters input keeps the phytoplankton in the euphotic zone, causing the spring bloom to start earlier and reach higher biomass but end sooner due to the lack of nutrients upwelling from the deep. In the Norwegian Sea, a correlation between SST and the spring blooms is found. Here, warmer waters are correlated to earlier and stronger blooms in most regions but with later and weaker blooms in the eastern Norwegian Sea. In the North Sea, years of shallower ML reduces the phytoplankton sinking below the euphotic zone and limits the SPM increase from the bed shear stress, creating an ideal environment of stratified and clear waters to develop stronger spring blooms. Last, the summer blooms onset, peak day and duration have been rapidly delaying at a rate of 1.25-day year–1, but with inconclusive causes based on the parameters assessed in this study. publishedVersion Article in Journal/Newspaper Barents Sea Norwegian Sea University of Bergen: Bergen Open Research Archive (BORA-UiB) Barents Sea Norwegian Sea Frontiers in Marine Science 8 |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
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ftunivbergen |
language |
English |
description |
Phytoplankton blooms provide biomass to the marine trophic web, contribute to the carbon removal from the atmosphere and can be deadly when associated with harmful species. This points to the need to understand the phenology of the blooms in the Barents, Norwegian, and North seas. We use satellite chlorophyll-a from 2000 to 2020 to assess robust climatological and the interannual trends of spring and summer blooms onset, peak day, duration and intensity. Further, we also correlate the interannual variability of the blooms with mixed layer depth (MLD), sea surface temperature (SST), wind speed and suspended particulate matter (SPM) retrieved from models and remote sensing. The climatological spring blooms start on March 10th and end on June 19th. The climatological summer blooms begin on July 13th and end on September 17th. In the Barents Sea, years of shallower mixed layer (ML) driven by both calm waters and higher freshwaters input keeps the phytoplankton in the euphotic zone, causing the spring bloom to start earlier and reach higher biomass but end sooner due to the lack of nutrients upwelling from the deep. In the Norwegian Sea, a correlation between SST and the spring blooms is found. Here, warmer waters are correlated to earlier and stronger blooms in most regions but with later and weaker blooms in the eastern Norwegian Sea. In the North Sea, years of shallower ML reduces the phytoplankton sinking below the euphotic zone and limits the SPM increase from the bed shear stress, creating an ideal environment of stratified and clear waters to develop stronger spring blooms. Last, the summer blooms onset, peak day and duration have been rapidly delaying at a rate of 1.25-day year–1, but with inconclusive causes based on the parameters assessed in this study. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Silva, Edson Counillon, François Brajard, Julien Korosov, Anton Pettersson, Lasse H Samuelsen, Annette Keenlyside, Noel |
spellingShingle |
Silva, Edson Counillon, François Brajard, Julien Korosov, Anton Pettersson, Lasse H Samuelsen, Annette Keenlyside, Noel Twenty-One Years of Phytoplankton Bloom Phenology in the Barents, Norwegian, and North Seas |
author_facet |
Silva, Edson Counillon, François Brajard, Julien Korosov, Anton Pettersson, Lasse H Samuelsen, Annette Keenlyside, Noel |
author_sort |
Silva, Edson |
title |
Twenty-One Years of Phytoplankton Bloom Phenology in the Barents, Norwegian, and North Seas |
title_short |
Twenty-One Years of Phytoplankton Bloom Phenology in the Barents, Norwegian, and North Seas |
title_full |
Twenty-One Years of Phytoplankton Bloom Phenology in the Barents, Norwegian, and North Seas |
title_fullStr |
Twenty-One Years of Phytoplankton Bloom Phenology in the Barents, Norwegian, and North Seas |
title_full_unstemmed |
Twenty-One Years of Phytoplankton Bloom Phenology in the Barents, Norwegian, and North Seas |
title_sort |
twenty-one years of phytoplankton bloom phenology in the barents, norwegian, and north seas |
publisher |
Frontiers |
publishDate |
2021 |
url |
https://hdl.handle.net/11250/2988390 https://doi.org/10.3389/fmars.2021.746327 |
geographic |
Barents Sea Norwegian Sea |
geographic_facet |
Barents Sea Norwegian Sea |
genre |
Barents Sea Norwegian Sea |
genre_facet |
Barents Sea Norwegian Sea |
op_source |
746327 Frontiers in Marine Science 8 |
op_relation |
Trond Mohn stiftelse: BFS2018TMT01 Norges forskningsråd: 276730 Norges forskningsråd: 318085 Norges forskningsråd: 309562 Notur/NorStore: nn9039k Notur/NorStore: NS9039K urn:issn:2296-7745 https://hdl.handle.net/11250/2988390 https://doi.org/10.3389/fmars.2021.746327 cristin:1955476 Frontiers in Marine Science. 2021, 8, 746327. |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no Copyright 2021 The Author(s) |
op_doi |
https://doi.org/10.3389/fmars.2021.746327 |
container_title |
Frontiers in Marine Science |
container_volume |
8 |
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1766370557017718784 |