Barents Sea plankton production and controlling factors in a fluctuating climate
Abstract The Barents Sea and its marine ecosystem is exposed to many different processes related to the seasonal light variability, formation and melting of sea-ice, wind-induced mixing, and exchange of heat and nutrients with neighbouring ocean regions. A global model for the RCP4.5 scenario was do...
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsab067 http://academic.oup.com/icesjms/article-pdf/78/6/1999/40489446/fsab067.pdf |
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croxfordunivpr:10.1093/icesjms/fsab067 2024-06-23T07:51:37+00:00 Barents Sea plankton production and controlling factors in a fluctuating climate Sandø, Anne Britt Mousing, Erik Askov Budgell, W P Hjøllo, Solfrid S Skogen, Morten D Ådlandsvik, B Hunsicker, Mary 2021 http://dx.doi.org/10.1093/icesjms/fsab067 http://academic.oup.com/icesjms/article-pdf/78/6/1999/40489446/fsab067.pdf en eng Oxford University Press (OUP) https://creativecommons.org/licenses/by/4.0/ ICES Journal of Marine Science volume 78, issue 6, page 1999-2016 ISSN 1054-3139 1095-9289 journal-article 2021 croxfordunivpr https://doi.org/10.1093/icesjms/fsab067 2024-06-04T06:12:14Z Abstract The Barents Sea and its marine ecosystem is exposed to many different processes related to the seasonal light variability, formation and melting of sea-ice, wind-induced mixing, and exchange of heat and nutrients with neighbouring ocean regions. A global model for the RCP4.5 scenario was downscaled, evaluated, and combined with a biophysical model to study how future variability and trends in temperature, sea-ice concentration, light, and wind-induced mixing potentially affect the lower trophic levels in the Barents Sea marine ecosystem. During the integration period (2010–2070), only a modest change in climate variables and biological production was found, compared to the inter-annual and decadal variability. The most prominent change was projected for the mid-2040s with a sudden decrease in biological production, largely controlled by covarying changes in heat inflow, wind, and sea-ice extent. The northernmost parts exhibited increased access to light during the productive season due to decreased sea-ice extent, leading to increased primary and secondary production in periods of low sea-ice concentrations. In the southern parts, variable access to nutrients as a function of wind-induced mixing and mixed layer depth were found to be the most dominating factors controlling variability in primary and secondary production. Article in Journal/Newspaper Barents Sea Sea ice Oxford University Press Barents Sea ICES Journal of Marine Science |
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Open Polar |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
Abstract The Barents Sea and its marine ecosystem is exposed to many different processes related to the seasonal light variability, formation and melting of sea-ice, wind-induced mixing, and exchange of heat and nutrients with neighbouring ocean regions. A global model for the RCP4.5 scenario was downscaled, evaluated, and combined with a biophysical model to study how future variability and trends in temperature, sea-ice concentration, light, and wind-induced mixing potentially affect the lower trophic levels in the Barents Sea marine ecosystem. During the integration period (2010–2070), only a modest change in climate variables and biological production was found, compared to the inter-annual and decadal variability. The most prominent change was projected for the mid-2040s with a sudden decrease in biological production, largely controlled by covarying changes in heat inflow, wind, and sea-ice extent. The northernmost parts exhibited increased access to light during the productive season due to decreased sea-ice extent, leading to increased primary and secondary production in periods of low sea-ice concentrations. In the southern parts, variable access to nutrients as a function of wind-induced mixing and mixed layer depth were found to be the most dominating factors controlling variability in primary and secondary production. |
author2 |
Hunsicker, Mary |
format |
Article in Journal/Newspaper |
author |
Sandø, Anne Britt Mousing, Erik Askov Budgell, W P Hjøllo, Solfrid S Skogen, Morten D Ådlandsvik, B |
spellingShingle |
Sandø, Anne Britt Mousing, Erik Askov Budgell, W P Hjøllo, Solfrid S Skogen, Morten D Ådlandsvik, B Barents Sea plankton production and controlling factors in a fluctuating climate |
author_facet |
Sandø, Anne Britt Mousing, Erik Askov Budgell, W P Hjøllo, Solfrid S Skogen, Morten D Ådlandsvik, B |
author_sort |
Sandø, Anne Britt |
title |
Barents Sea plankton production and controlling factors in a fluctuating climate |
title_short |
Barents Sea plankton production and controlling factors in a fluctuating climate |
title_full |
Barents Sea plankton production and controlling factors in a fluctuating climate |
title_fullStr |
Barents Sea plankton production and controlling factors in a fluctuating climate |
title_full_unstemmed |
Barents Sea plankton production and controlling factors in a fluctuating climate |
title_sort |
barents sea plankton production and controlling factors in a fluctuating climate |
publisher |
Oxford University Press (OUP) |
publishDate |
2021 |
url |
http://dx.doi.org/10.1093/icesjms/fsab067 http://academic.oup.com/icesjms/article-pdf/78/6/1999/40489446/fsab067.pdf |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
Barents Sea Sea ice |
genre_facet |
Barents Sea Sea ice |
op_source |
ICES Journal of Marine Science volume 78, issue 6, page 1999-2016 ISSN 1054-3139 1095-9289 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1093/icesjms/fsab067 |
container_title |
ICES Journal of Marine Science |
_version_ |
1802642739825737728 |