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...
Published in: | Frontiers in Marine Science |
---|---|
Main Authors: | , , , , , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Frontiers Media SA
2024
|
Subjects: | |
Online Access: | http://dx.doi.org/10.3389/fmars.2024.1308542 https://www.frontiersin.org/articles/10.3389/fmars.2024.1308542/full |
id |
crfrontiers:10.3389/fmars.2024.1308542 |
---|---|
record_format |
openpolar |
spelling |
crfrontiers:10.3389/fmars.2024.1308542 2024-04-28T08:08:54+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 Primicerio, Raul Amargant-Arumí, Martí Müller, Oliver Wold, Anette Ormańczyk, Mateusz Roman Kwasniewski, Slawomir Svensen, Camilla Norges Forskningsråd 2024 http://dx.doi.org/10.3389/fmars.2024.1308542 https://www.frontiersin.org/articles/10.3389/fmars.2024.1308542/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Marine Science volume 11 ISSN 2296-7745 Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography journal-article 2024 crfrontiers https://doi.org/10.3389/fmars.2024.1308542 2024-04-02T07:44:14Z 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 copepods, and the secondary production they generate ... Article in Journal/Newspaper Arctic Barents Sea Calanus finmarchicus Climate change Sea ice Zooplankton Copepods Frontiers (Publisher) Frontiers in Marine Science 11 |
institution |
Open Polar |
collection |
Frontiers (Publisher) |
op_collection_id |
crfrontiers |
language |
unknown |
topic |
Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography |
spellingShingle |
Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography Gawinski, Christine Daase, Malin Primicerio, Raul Amargant-Arumí, Martí Müller, Oliver Wold, Anette Ormańczyk, Mateusz Roman Kwasniewski, Slawomir Svensen, Camilla Response of the copepod community to interannual differences in sea-ice cover and water masses in the northern Barents Sea |
topic_facet |
Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography |
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 copepods, and the secondary production they generate ... |
author2 |
Norges Forskningsråd |
format |
Article in Journal/Newspaper |
author |
Gawinski, Christine Daase, Malin Primicerio, Raul Amargant-Arumí, Martí Müller, Oliver Wold, Anette Ormańczyk, Mateusz Roman Kwasniewski, Slawomir Svensen, Camilla |
author_facet |
Gawinski, Christine Daase, Malin Primicerio, Raul Amargant-Arumí, Martí Müller, Oliver Wold, Anette Ormańczyk, Mateusz Roman 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 SA |
publishDate |
2024 |
url |
http://dx.doi.org/10.3389/fmars.2024.1308542 https://www.frontiersin.org/articles/10.3389/fmars.2024.1308542/full |
genre |
Arctic Barents Sea Calanus finmarchicus Climate change Sea ice Zooplankton Copepods |
genre_facet |
Arctic Barents Sea Calanus finmarchicus Climate change Sea ice Zooplankton Copepods |
op_source |
Frontiers in Marine Science volume 11 ISSN 2296-7745 |
op_rights |
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 |
_version_ |
1797577464016273408 |