Response of the copepod community to interannual differences in sea-ice cover and water masses in the northern Barents Sea
The reduction of Arctic summer sea ice due to climate change can lead to increased primary production in parts of the Barents Sea if sufficient nutrients are available. Changes in the timing and magnitude of primary production may have cascading consequences for the zooplankton community and ultimat...
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ftunivtroemsoe:oai:munin.uit.no:10037/34347 2024-09-15T17:57:44+00:00 Response of the copepod community to interannual differences in sea-ice cover and water masses in the northern Barents Sea Gawinski, Christine Daase, Malin Hildegard Elisabeth Primicerio, Raul Amargant I Arumi, Marti Müller, Oliver Wold, Anette Ormanzcyk, Mateusz Kwasniewski, Slawomir Svensen, Camilla 2024-03-27 https://hdl.handle.net/10037/34347 https://doi.org/10.3389/fmars.2024.1308542 eng eng Frontiers Media Frontiers in Marine Science Norges forskningsråd: 276730 Gawinski, Daase, Primicerio, Amargant I Arumi, Müller, Wold, Ormanzcyk, Kwasniewski, Svensen. Response of the copepod community to interannual differences in sea-ice cover and water masses in the northern Barents Sea. Frontiers in Marine Science. 2024;11 FRIDAID 2257995 doi:10.3389/fmars.2024.1308542 2296-7745 https://hdl.handle.net/10037/34347 Attribution 4.0 International (CC BY 4.0) openAccess Copyright 2024 The Author(s) https://creativecommons.org/licenses/by/4.0 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2024 ftunivtroemsoe https://doi.org/10.3389/fmars.2024.1308542 2024-08-27T23:41:18Z The reduction of Arctic summer sea ice due to climate change can lead to increased primary production in parts of the Barents Sea if sufficient nutrients are available. Changes in the timing and magnitude of primary production may have cascading consequences for the zooplankton community and ultimately for higher trophic levels. In Arctic food webs, both small and large copepods are commonly present, but may have different life history strategies and hence different responses to environmental change. We investigated how contrasting summer sea-ice cover and water masses in the northern Barents Sea influenced the copepod community composition and secondary production of small and large copepods along a transect from 76°N to 83°N in August 2018 and August 2019. Bulk abundance, biomass, and secondary production of the total copepod community did not differ significantly between the two years. There were however significant spatial differences in the copepod community composition and production, with declining copepod abundance from Atlantic to Arctic waters and the highest copepod biomass and production on the Barents Sea shelf. The boreal Calanus finmarchicus showed higher abundance, biomass, and secondary production in the year with less sea-ice cover and at locations with a clear Atlantic water signal. Significant differences in the copepod community between areas in the two years could be attributed to interannual differences in sea-ice cover and Atlantic water inflow. Small copepods contributed more to secondary production in areas with no or little sea ice and their production was positively correlated to water temperature and ciliate abundance. Large copepods contributed more to secondary production in areas with extensive sea ice and their production was positively correlated with chlorophyll a concentration. Our results show how pelagic communities might function in a future ice-free Barents Sea, in which the main component of the communities are smaller-sized copepod species (including smaller-sized ... Article in Journal/Newspaper Barents Sea Calanus finmarchicus Climate change Sea ice Zooplankton Copepods University of Tromsø: Munin Open Research Archive Frontiers in Marine Science 11 |
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Open Polar |
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University of Tromsø: Munin Open Research Archive |
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ftunivtroemsoe |
language |
English |
description |
The reduction of Arctic summer sea ice due to climate change can lead to increased primary production in parts of the Barents Sea if sufficient nutrients are available. Changes in the timing and magnitude of primary production may have cascading consequences for the zooplankton community and ultimately for higher trophic levels. In Arctic food webs, both small and large copepods are commonly present, but may have different life history strategies and hence different responses to environmental change. We investigated how contrasting summer sea-ice cover and water masses in the northern Barents Sea influenced the copepod community composition and secondary production of small and large copepods along a transect from 76°N to 83°N in August 2018 and August 2019. Bulk abundance, biomass, and secondary production of the total copepod community did not differ significantly between the two years. There were however significant spatial differences in the copepod community composition and production, with declining copepod abundance from Atlantic to Arctic waters and the highest copepod biomass and production on the Barents Sea shelf. The boreal Calanus finmarchicus showed higher abundance, biomass, and secondary production in the year with less sea-ice cover and at locations with a clear Atlantic water signal. Significant differences in the copepod community between areas in the two years could be attributed to interannual differences in sea-ice cover and Atlantic water inflow. Small copepods contributed more to secondary production in areas with no or little sea ice and their production was positively correlated to water temperature and ciliate abundance. Large copepods contributed more to secondary production in areas with extensive sea ice and their production was positively correlated with chlorophyll a concentration. Our results show how pelagic communities might function in a future ice-free Barents Sea, in which the main component of the communities are smaller-sized copepod species (including smaller-sized ... |
format |
Article in Journal/Newspaper |
author |
Gawinski, Christine Daase, Malin Hildegard Elisabeth Primicerio, Raul Amargant I Arumi, Marti Müller, Oliver Wold, Anette Ormanzcyk, Mateusz Kwasniewski, Slawomir Svensen, Camilla |
spellingShingle |
Gawinski, Christine Daase, Malin Hildegard Elisabeth Primicerio, Raul Amargant I Arumi, Marti Müller, Oliver Wold, Anette Ormanzcyk, Mateusz Kwasniewski, Slawomir Svensen, Camilla Response of the copepod community to interannual differences in sea-ice cover and water masses in the northern Barents Sea |
author_facet |
Gawinski, Christine Daase, Malin Hildegard Elisabeth Primicerio, Raul Amargant I Arumi, Marti Müller, Oliver Wold, Anette Ormanzcyk, Mateusz Kwasniewski, Slawomir Svensen, Camilla |
author_sort |
Gawinski, Christine |
title |
Response of the copepod community to interannual differences in sea-ice cover and water masses in the northern Barents Sea |
title_short |
Response of the copepod community to interannual differences in sea-ice cover and water masses in the northern Barents Sea |
title_full |
Response of the copepod community to interannual differences in sea-ice cover and water masses in the northern Barents Sea |
title_fullStr |
Response of the copepod community to interannual differences in sea-ice cover and water masses in the northern Barents Sea |
title_full_unstemmed |
Response of the copepod community to interannual differences in sea-ice cover and water masses in the northern Barents Sea |
title_sort |
response of the copepod community to interannual differences in sea-ice cover and water masses in the northern barents sea |
publisher |
Frontiers Media |
publishDate |
2024 |
url |
https://hdl.handle.net/10037/34347 https://doi.org/10.3389/fmars.2024.1308542 |
genre |
Barents Sea Calanus finmarchicus Climate change Sea ice Zooplankton Copepods |
genre_facet |
Barents Sea Calanus finmarchicus Climate change Sea ice Zooplankton Copepods |
op_relation |
Frontiers in Marine Science Norges forskningsråd: 276730 Gawinski, Daase, Primicerio, Amargant I Arumi, Müller, Wold, Ormanzcyk, Kwasniewski, Svensen. Response of the copepod community to interannual differences in sea-ice cover and water masses in the northern Barents Sea. Frontiers in Marine Science. 2024;11 FRIDAID 2257995 doi:10.3389/fmars.2024.1308542 2296-7745 https://hdl.handle.net/10037/34347 |
op_rights |
Attribution 4.0 International (CC BY 4.0) openAccess Copyright 2024 The Author(s) https://creativecommons.org/licenses/by/4.0 |
op_doi |
https://doi.org/10.3389/fmars.2024.1308542 |
container_title |
Frontiers in Marine Science |
container_volume |
11 |
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1810433895550681088 |