Deep demersal fish communities respond rapidly to warming in a frontal region between Arctic and Atlantic waters
The assessment of climate impact on marine communities dwelling deeper than the well-studied shelf seas has been hampered by the lack of long-term data. For a long time, the prevailing expectation has been that thermal stability in deep ocean layers will delay ecosystem responses to warming. Few obs...
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Online Access: | https://hdl.handle.net/10037/26463 https://doi.org/10.1111/gcb.16113 |
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ftunivtroemsoe:oai:munin.uit.no:10037/26463 2023-05-15T14:27:08+02:00 Deep demersal fish communities respond rapidly to warming in a frontal region between Arctic and Atlantic waters Emblemsvåg, Margrete Werner, Karl-Michael Núñez-Riboni, Ismael Frelat, Romain Torp Christensen, Helle Fock, Heino O. Primicerio, Raul 2022-02-23 https://hdl.handle.net/10037/26463 https://doi.org/10.1111/gcb.16113 eng eng Wiley Global Change Biology info:eu-repo/grantAgreement/EC/SOCIETAL CHALLENGES/817578/EU/Tropical and South Atlantic climate-based marine ecosystem predictions for sustainable management/TRIATLAS/ Emblemsvåg, Werner, Núñez-Riboni, Frelat, Torp Christensen, Fock, Primicerio. Deep demersal fish communities respond rapidly to warming in a frontal region between Arctic and Atlantic waters. Global Change Biology. 2022;28(9):2979-2990 FRIDAID 2026795 doi:10.1111/gcb.16113 1354-1013 1365-2486 https://hdl.handle.net/10037/26463 openAccess Copyright 2022 The Author(s) Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2022 ftunivtroemsoe https://doi.org/10.1111/gcb.16113 2022-08-31T23:00:12Z The assessment of climate impact on marine communities dwelling deeper than the well-studied shelf seas has been hampered by the lack of long-term data. For a long time, the prevailing expectation has been that thermal stability in deep ocean layers will delay ecosystem responses to warming. Few observational studies have challenged this view and indicated that deep organisms can respond exceptionally fast to physical change at the sea surface. To address the depth-specific impact of climate change, we investigated spatio-temporal changes in fish community structure along a bathymetry gradient of 150–1500 m between 1998 and 2016 in East Greenland. Here, the Arctic East Greenland Current and the Atlantic Irminger Current meet and mix, representing a sub-Arctic transition zone. We found the strongest signals of community reorganizations at depths between 350 and 1000 m and only weak responses in the shallowest and deepest regions. Changes were in synchrony with atmospheric warming, loss in sea ice and variability in physical sea surface conditions both within our study region and North of the Denmark Strait. These results suggest that interannual variability and longterm climate trends of the larger ecoregion can rapidly affect fish communities down to 1000-m depth through atmospheric ocean coupling and food web interactions. Article in Journal/Newspaper Arctic Arctic Climate change Denmark Strait East Greenland east greenland current Greenland Sea ice University of Tromsø: Munin Open Research Archive Arctic Greenland Global Change Biology 28 9 2979 2990 |
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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 assessment of climate impact on marine communities dwelling deeper than the well-studied shelf seas has been hampered by the lack of long-term data. For a long time, the prevailing expectation has been that thermal stability in deep ocean layers will delay ecosystem responses to warming. Few observational studies have challenged this view and indicated that deep organisms can respond exceptionally fast to physical change at the sea surface. To address the depth-specific impact of climate change, we investigated spatio-temporal changes in fish community structure along a bathymetry gradient of 150–1500 m between 1998 and 2016 in East Greenland. Here, the Arctic East Greenland Current and the Atlantic Irminger Current meet and mix, representing a sub-Arctic transition zone. We found the strongest signals of community reorganizations at depths between 350 and 1000 m and only weak responses in the shallowest and deepest regions. Changes were in synchrony with atmospheric warming, loss in sea ice and variability in physical sea surface conditions both within our study region and North of the Denmark Strait. These results suggest that interannual variability and longterm climate trends of the larger ecoregion can rapidly affect fish communities down to 1000-m depth through atmospheric ocean coupling and food web interactions. |
format |
Article in Journal/Newspaper |
author |
Emblemsvåg, Margrete Werner, Karl-Michael Núñez-Riboni, Ismael Frelat, Romain Torp Christensen, Helle Fock, Heino O. Primicerio, Raul |
spellingShingle |
Emblemsvåg, Margrete Werner, Karl-Michael Núñez-Riboni, Ismael Frelat, Romain Torp Christensen, Helle Fock, Heino O. Primicerio, Raul Deep demersal fish communities respond rapidly to warming in a frontal region between Arctic and Atlantic waters |
author_facet |
Emblemsvåg, Margrete Werner, Karl-Michael Núñez-Riboni, Ismael Frelat, Romain Torp Christensen, Helle Fock, Heino O. Primicerio, Raul |
author_sort |
Emblemsvåg, Margrete |
title |
Deep demersal fish communities respond rapidly to warming in a frontal region between Arctic and Atlantic waters |
title_short |
Deep demersal fish communities respond rapidly to warming in a frontal region between Arctic and Atlantic waters |
title_full |
Deep demersal fish communities respond rapidly to warming in a frontal region between Arctic and Atlantic waters |
title_fullStr |
Deep demersal fish communities respond rapidly to warming in a frontal region between Arctic and Atlantic waters |
title_full_unstemmed |
Deep demersal fish communities respond rapidly to warming in a frontal region between Arctic and Atlantic waters |
title_sort |
deep demersal fish communities respond rapidly to warming in a frontal region between arctic and atlantic waters |
publisher |
Wiley |
publishDate |
2022 |
url |
https://hdl.handle.net/10037/26463 https://doi.org/10.1111/gcb.16113 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Arctic Climate change Denmark Strait East Greenland east greenland current Greenland Sea ice |
genre_facet |
Arctic Arctic Climate change Denmark Strait East Greenland east greenland current Greenland Sea ice |
op_relation |
Global Change Biology info:eu-repo/grantAgreement/EC/SOCIETAL CHALLENGES/817578/EU/Tropical and South Atlantic climate-based marine ecosystem predictions for sustainable management/TRIATLAS/ Emblemsvåg, Werner, Núñez-Riboni, Frelat, Torp Christensen, Fock, Primicerio. Deep demersal fish communities respond rapidly to warming in a frontal region between Arctic and Atlantic waters. Global Change Biology. 2022;28(9):2979-2990 FRIDAID 2026795 doi:10.1111/gcb.16113 1354-1013 1365-2486 https://hdl.handle.net/10037/26463 |
op_rights |
openAccess Copyright 2022 The Author(s) |
op_doi |
https://doi.org/10.1111/gcb.16113 |
container_title |
Global Change Biology |
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28 |
container_issue |
9 |
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2979 |
op_container_end_page |
2990 |
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1766300731581661184 |