Successive extreme climatic events lead to immediate, large-scale, and diverse responses from fish in the Arctic
The warming trend of the Arctic is punctuated by several record-breaking warm years with very low sea ice concentrations. The nature and reversibility of marine ecosystem responses to these multiple extreme climatic events (ECEs) are poorly understood. Here, we investigate the ecological signatures...
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Online Access: | https://hdl.handle.net/11250/3002726 https://doi.org/10.1111/gcb.16153 |
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ftimr:oai:imr.brage.unit.no:11250/3002726 2023-05-15T14:53:01+02:00 Successive extreme climatic events lead to immediate, large-scale, and diverse responses from fish in the Arctic Husson, Berengere Lind, Sigrid Fossheim, Maria Solvang, Hiroko Kato Skern-Mauritzen, Mette Pecuchet, Laurene Ingvaldsen, Randi Brunvær Dolgov, Andrey V. Primicerio, Raul 2022 application/pdf https://hdl.handle.net/11250/3002726 https://doi.org/10.1111/gcb.16153 eng eng Utenriksdepartementet: Arktis 2030 (QZA-15/0137) Norges forskningsråd: 288192 Norges forskningsråd: 276730 Global Change Biology. 2022, 28 (11), 3728-3744. urn:issn:1354-1013 https://hdl.handle.net/11250/3002726 https://doi.org/10.1111/gcb.16153 cristin:2017710 3728-3744 28 Global Change Biology 11 Økosystem Ecosystem Polhavet Arctic ocean Klimaendringer Climate change VDP::Økologi: 488 VDP::Ecology: 488 Peer reviewed Journal article 2022 ftimr https://doi.org/10.1111/gcb.16153 2022-07-06T22:40:30Z The warming trend of the Arctic is punctuated by several record-breaking warm years with very low sea ice concentrations. The nature and reversibility of marine ecosystem responses to these multiple extreme climatic events (ECEs) are poorly understood. Here, we investigate the ecological signatures of three successive bottom temperature maxima concomitant with surface ECEs between 2004 and 2017 in the Barents Sea across spatial and organizational scales. We observed community-level redistributions of fish concurrent with ECEs at the scale of the whole Barents Sea. Three groups, characterized by different sets of traits describing their capacity to cope with short-term perturbations, reacted with different timing and intensity to each ECE. Arctic species co-occurred more frequently with large predators and incoming boreal taxa during ECEs, potentially affecting food web structures and functional diversity, accelerating the impacts of long-term climate change. On the species level, responses were highly diversified, with different ECEs impacting different species, and species responses (expansion, geographical shift) varying from one ECE to another, despite the environmental perturbations being similar. Past ECEs impacts, with potential legacy effects, lagged responses, thresholds, and interactions with the underlying warming pressure, could constantly set up new initial conditions that drive the unique ecological signature of each ECE. These results highlight the complexity of ecological reactions to multiple ECEs and give prominence to several sources of process uncertainty in the predictions of climate change impact and risk for ecosystem management. Long-term monitoring and studies to characterize the vertical extent of each ECE are necessary to statistically link demersal species and environmental spatial–temporal patterns. In the future, regular monitoring will be crucial to detect early signals of change and understand the determinism of ECEs, but we need to adapt our models and management to better ... Article in Journal/Newspaper Arctic Arctic Ocean Barents Sea Climate change Polhav* Polhavet Sea ice Institute for Marine Research: Brage IMR Arctic Arctic Ocean Barents Sea Global Change Biology 28 11 3728 3744 |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
topic |
Økosystem Ecosystem Polhavet Arctic ocean Klimaendringer Climate change VDP::Økologi: 488 VDP::Ecology: 488 |
spellingShingle |
Økosystem Ecosystem Polhavet Arctic ocean Klimaendringer Climate change VDP::Økologi: 488 VDP::Ecology: 488 Husson, Berengere Lind, Sigrid Fossheim, Maria Solvang, Hiroko Kato Skern-Mauritzen, Mette Pecuchet, Laurene Ingvaldsen, Randi Brunvær Dolgov, Andrey V. Primicerio, Raul Successive extreme climatic events lead to immediate, large-scale, and diverse responses from fish in the Arctic |
topic_facet |
Økosystem Ecosystem Polhavet Arctic ocean Klimaendringer Climate change VDP::Økologi: 488 VDP::Ecology: 488 |
description |
The warming trend of the Arctic is punctuated by several record-breaking warm years with very low sea ice concentrations. The nature and reversibility of marine ecosystem responses to these multiple extreme climatic events (ECEs) are poorly understood. Here, we investigate the ecological signatures of three successive bottom temperature maxima concomitant with surface ECEs between 2004 and 2017 in the Barents Sea across spatial and organizational scales. We observed community-level redistributions of fish concurrent with ECEs at the scale of the whole Barents Sea. Three groups, characterized by different sets of traits describing their capacity to cope with short-term perturbations, reacted with different timing and intensity to each ECE. Arctic species co-occurred more frequently with large predators and incoming boreal taxa during ECEs, potentially affecting food web structures and functional diversity, accelerating the impacts of long-term climate change. On the species level, responses were highly diversified, with different ECEs impacting different species, and species responses (expansion, geographical shift) varying from one ECE to another, despite the environmental perturbations being similar. Past ECEs impacts, with potential legacy effects, lagged responses, thresholds, and interactions with the underlying warming pressure, could constantly set up new initial conditions that drive the unique ecological signature of each ECE. These results highlight the complexity of ecological reactions to multiple ECEs and give prominence to several sources of process uncertainty in the predictions of climate change impact and risk for ecosystem management. Long-term monitoring and studies to characterize the vertical extent of each ECE are necessary to statistically link demersal species and environmental spatial–temporal patterns. In the future, regular monitoring will be crucial to detect early signals of change and understand the determinism of ECEs, but we need to adapt our models and management to better ... |
format |
Article in Journal/Newspaper |
author |
Husson, Berengere Lind, Sigrid Fossheim, Maria Solvang, Hiroko Kato Skern-Mauritzen, Mette Pecuchet, Laurene Ingvaldsen, Randi Brunvær Dolgov, Andrey V. Primicerio, Raul |
author_facet |
Husson, Berengere Lind, Sigrid Fossheim, Maria Solvang, Hiroko Kato Skern-Mauritzen, Mette Pecuchet, Laurene Ingvaldsen, Randi Brunvær Dolgov, Andrey V. Primicerio, Raul |
author_sort |
Husson, Berengere |
title |
Successive extreme climatic events lead to immediate, large-scale, and diverse responses from fish in the Arctic |
title_short |
Successive extreme climatic events lead to immediate, large-scale, and diverse responses from fish in the Arctic |
title_full |
Successive extreme climatic events lead to immediate, large-scale, and diverse responses from fish in the Arctic |
title_fullStr |
Successive extreme climatic events lead to immediate, large-scale, and diverse responses from fish in the Arctic |
title_full_unstemmed |
Successive extreme climatic events lead to immediate, large-scale, and diverse responses from fish in the Arctic |
title_sort |
successive extreme climatic events lead to immediate, large-scale, and diverse responses from fish in the arctic |
publishDate |
2022 |
url |
https://hdl.handle.net/11250/3002726 https://doi.org/10.1111/gcb.16153 |
geographic |
Arctic Arctic Ocean Barents Sea |
geographic_facet |
Arctic Arctic Ocean Barents Sea |
genre |
Arctic Arctic Ocean Barents Sea Climate change Polhav* Polhavet Sea ice |
genre_facet |
Arctic Arctic Ocean Barents Sea Climate change Polhav* Polhavet Sea ice |
op_source |
3728-3744 28 Global Change Biology 11 |
op_relation |
Utenriksdepartementet: Arktis 2030 (QZA-15/0137) Norges forskningsråd: 288192 Norges forskningsråd: 276730 Global Change Biology. 2022, 28 (11), 3728-3744. urn:issn:1354-1013 https://hdl.handle.net/11250/3002726 https://doi.org/10.1111/gcb.16153 cristin:2017710 |
op_doi |
https://doi.org/10.1111/gcb.16153 |
container_title |
Global Change Biology |
container_volume |
28 |
container_issue |
11 |
container_start_page |
3728 |
op_container_end_page |
3744 |
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1766324451847176192 |