Multi-decadal environmental change in the Barents Sea recorded by seal teeth
Multiple environmental forcings, such as warming and changes in ocean circulation and nutrient supply, are affecting the base of Arctic marine ecosystems, with cascading effects on the entire food web through bottom-up control. Stable nitrogen isotopes (δ 15 N) can be used to detect and unravel the...
Published in: | Global Change Biology |
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Main Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2022
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/multidecadal-environmental-change-in-the-barents-sea-recorded-by-seal-teeth(e7107153-8982-4a2c-b580-efba426d318d).html https://doi.org/10.1111/gcb.16138 https://research-repository.st-andrews.ac.uk/bitstream/10023/24974/1/de_la_Vega_2022_GCB_Multi_decadal_environmental_change_Barents_Sea_CC.pdf |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/e7107153-8982-4a2c-b580-efba426d318d 2023-05-15T14:43:52+02:00 Multi-decadal environmental change in the Barents Sea recorded by seal teeth de la Vega, Camille Buchanan, Pearse J. Tagliabue, Alessandro Hopkins, Joanne E. Jeffreys, Rachel M. Frie, Anne Kirstine Biuw, Martin Kershaw, Joanna Grecian, James Norman, Louisa Smout, Sophie Haug, Tore Mahaffey, Claire 2022-04-01 application/pdf https://risweb.st-andrews.ac.uk/portal/en/researchoutput/multidecadal-environmental-change-in-the-barents-sea-recorded-by-seal-teeth(e7107153-8982-4a2c-b580-efba426d318d).html https://doi.org/10.1111/gcb.16138 https://research-repository.st-andrews.ac.uk/bitstream/10023/24974/1/de_la_Vega_2022_GCB_Multi_decadal_environmental_change_Barents_Sea_CC.pdf eng eng info:eu-repo/semantics/openAccess de la Vega , C , Buchanan , P J , Tagliabue , A , Hopkins , J E , Jeffreys , R M , Frie , A K , Biuw , M , Kershaw , J , Grecian , J , Norman , L , Smout , S , Haug , T & Mahaffey , C 2022 , ' Multi-decadal environmental change in the Barents Sea recorded by seal teeth ' , Global Change Biology , vol. 28 , no. 9 , pp. 3054-3065 . https://doi.org/10.1111/gcb.16138 Arctic Atlantification Atmospheric nitrogen deposition harp seal Stable nitrogen isotopes article 2022 ftunstandrewcris https://doi.org/10.1111/gcb.16138 2022-06-02T07:54:25Z Multiple environmental forcings, such as warming and changes in ocean circulation and nutrient supply, are affecting the base of Arctic marine ecosystems, with cascading effects on the entire food web through bottom-up control. Stable nitrogen isotopes (δ 15 N) can be used to detect and unravel the impact of these forcings on this unique ecosystem, if the many processes that affect the δ 15 N values are constrained. Combining unique 60-year records from compound specific δ 15 N biomarkers on harp seal teeth alongside state-of-the-art ocean modelling, we observed a significant decline in the δ 15 N values at the base of the Barents Sea food web from 1951 to 2012. This strong and persistent decadal trend emerges due to the combination of anthropogenic atmospheric nitrogen deposition in the Atlantic, increased northward transport of Atlantic water through Arctic gateways and local feedbacks from increasing Arctic primary production. Our results suggest that the Arctic ecosystem has been responding to anthropogenically induced local and remote drivers, linked to changing ocean biology, chemistry and physics, for at least 60 years. Accounting for these trends in δ 15 N values at the base of the food web is essential to accurately detect ecosystem restructuring in this rapidly changing environment. Article in Journal/Newspaper Arctic Barents Sea Harp Seal University of St Andrews: Research Portal Arctic Barents Sea Global Change Biology 28 9 3054 3065 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Arctic Atlantification Atmospheric nitrogen deposition harp seal Stable nitrogen isotopes |
spellingShingle |
Arctic Atlantification Atmospheric nitrogen deposition harp seal Stable nitrogen isotopes de la Vega, Camille Buchanan, Pearse J. Tagliabue, Alessandro Hopkins, Joanne E. Jeffreys, Rachel M. Frie, Anne Kirstine Biuw, Martin Kershaw, Joanna Grecian, James Norman, Louisa Smout, Sophie Haug, Tore Mahaffey, Claire Multi-decadal environmental change in the Barents Sea recorded by seal teeth |
topic_facet |
Arctic Atlantification Atmospheric nitrogen deposition harp seal Stable nitrogen isotopes |
description |
Multiple environmental forcings, such as warming and changes in ocean circulation and nutrient supply, are affecting the base of Arctic marine ecosystems, with cascading effects on the entire food web through bottom-up control. Stable nitrogen isotopes (δ 15 N) can be used to detect and unravel the impact of these forcings on this unique ecosystem, if the many processes that affect the δ 15 N values are constrained. Combining unique 60-year records from compound specific δ 15 N biomarkers on harp seal teeth alongside state-of-the-art ocean modelling, we observed a significant decline in the δ 15 N values at the base of the Barents Sea food web from 1951 to 2012. This strong and persistent decadal trend emerges due to the combination of anthropogenic atmospheric nitrogen deposition in the Atlantic, increased northward transport of Atlantic water through Arctic gateways and local feedbacks from increasing Arctic primary production. Our results suggest that the Arctic ecosystem has been responding to anthropogenically induced local and remote drivers, linked to changing ocean biology, chemistry and physics, for at least 60 years. Accounting for these trends in δ 15 N values at the base of the food web is essential to accurately detect ecosystem restructuring in this rapidly changing environment. |
format |
Article in Journal/Newspaper |
author |
de la Vega, Camille Buchanan, Pearse J. Tagliabue, Alessandro Hopkins, Joanne E. Jeffreys, Rachel M. Frie, Anne Kirstine Biuw, Martin Kershaw, Joanna Grecian, James Norman, Louisa Smout, Sophie Haug, Tore Mahaffey, Claire |
author_facet |
de la Vega, Camille Buchanan, Pearse J. Tagliabue, Alessandro Hopkins, Joanne E. Jeffreys, Rachel M. Frie, Anne Kirstine Biuw, Martin Kershaw, Joanna Grecian, James Norman, Louisa Smout, Sophie Haug, Tore Mahaffey, Claire |
author_sort |
de la Vega, Camille |
title |
Multi-decadal environmental change in the Barents Sea recorded by seal teeth |
title_short |
Multi-decadal environmental change in the Barents Sea recorded by seal teeth |
title_full |
Multi-decadal environmental change in the Barents Sea recorded by seal teeth |
title_fullStr |
Multi-decadal environmental change in the Barents Sea recorded by seal teeth |
title_full_unstemmed |
Multi-decadal environmental change in the Barents Sea recorded by seal teeth |
title_sort |
multi-decadal environmental change in the barents sea recorded by seal teeth |
publishDate |
2022 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/multidecadal-environmental-change-in-the-barents-sea-recorded-by-seal-teeth(e7107153-8982-4a2c-b580-efba426d318d).html https://doi.org/10.1111/gcb.16138 https://research-repository.st-andrews.ac.uk/bitstream/10023/24974/1/de_la_Vega_2022_GCB_Multi_decadal_environmental_change_Barents_Sea_CC.pdf |
geographic |
Arctic Barents Sea |
geographic_facet |
Arctic Barents Sea |
genre |
Arctic Barents Sea Harp Seal |
genre_facet |
Arctic Barents Sea Harp Seal |
op_source |
de la Vega , C , Buchanan , P J , Tagliabue , A , Hopkins , J E , Jeffreys , R M , Frie , A K , Biuw , M , Kershaw , J , Grecian , J , Norman , L , Smout , S , Haug , T & Mahaffey , C 2022 , ' Multi-decadal environmental change in the Barents Sea recorded by seal teeth ' , Global Change Biology , vol. 28 , no. 9 , pp. 3054-3065 . https://doi.org/10.1111/gcb.16138 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/gcb.16138 |
container_title |
Global Change Biology |
container_volume |
28 |
container_issue |
9 |
container_start_page |
3054 |
op_container_end_page |
3065 |
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1766315448344772608 |