Coupled changes between the H-Print biomarker and δ15N indicates a variable sea ice carbon contribution to the diet of Cumberland Sound beluga whales:Carbon source changes in beluga diet
Sub‐Arctic habitats are being exposed to increasingly long periods of open water as sea ice continues to decline in thickness and extent. Some hypothesize that this will result in a reduction, and maybe total loss of sea ice derived (sympagic) carbon supply; however, the impact of such change on eco...
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ftuhipublicatio:oai:pure.atira.dk:publications/cfbbc0c4-29dc-4df5-8752-39998f9c3e2f 2024-09-15T17:58:57+00:00 Coupled changes between the H-Print biomarker and δ15N indicates a variable sea ice carbon contribution to the diet of Cumberland Sound beluga whales:Carbon source changes in beluga diet Brown, T. A. Chrystal, E. Ferguson, S. H. Yurkowski, D. J. Watt, C. Hussey, N. E. Kelley, T. C. Belt, Simon T. 2017-03-01 application/vnd.openxmlformats-officedocument.wordprocessingml.document https://pure.uhi.ac.uk/en/publications/cfbbc0c4-29dc-4df5-8752-39998f9c3e2f https://doi.org/10.1002/lno.10520 https://pureadmin.uhi.ac.uk/ws/files/13790212/Brown_et_al_2017.docx eng eng https://pure.uhi.ac.uk/en/publications/cfbbc0c4-29dc-4df5-8752-39998f9c3e2f info:eu-repo/semantics/openAccess Brown , T A , Chrystal , E , Ferguson , S H , Yurkowski , D J , Watt , C , Hussey , N E , Kelley , T C & Belt , S T 2017 , ' Coupled changes between the H-Print biomarker and δ15N indicates a variable sea ice carbon contribution to the diet of Cumberland Sound beluga whales : Carbon source changes in beluga diet ' , Limnology and Oceanography , vol. 62 , pp. 1606-1619 . https://doi.org/10.1002/lno.10520 article 2017 ftuhipublicatio https://doi.org/10.1002/lno.10520 2024-06-24T23:48:36Z Sub‐Arctic habitats are being exposed to increasingly long periods of open water as sea ice continues to decline in thickness and extent. Some hypothesize that this will result in a reduction, and maybe total loss of sea ice derived (sympagic) carbon supply; however, the impact of such change on ecosystems requires further investigation. Here, we used the H‐Print biomarker approach that utilizes well‐defined indicators of both sympagic and phytoplanktic carbon, in combination with stable isotopes (δ15N), to study the effect of reducing sympagic carbon availability on beluga whales (Delphinapterus leucas) in the sub‐Arctic ecosystem of Cumberland Sound. Our data show that decreasing δ15N in belugas was negatively correlated with pelagic carbon (H‐Print) within their diet. We also identified a statistically significant (R2 = 0.82; p ≤ 0.01) change point in the proportion of sympagic/pelagic carbon within beluga around the year 2000, signified by consistently reducing δ15N, coupled with increasing pelagic carbon composition. This observed shift from sympagic to pelagic contribution to diet is likely to remain a feature of the Cumberland Sound ecosystem during the projected reduction of sea ice. Article in Journal/Newspaper Beluga Beluga* Cumberland Sound Delphinapterus leucas Sea ice University of the Highlands and Islands: Research Database of UHI Limnology and Oceanography 62 4 1606 1619 |
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Open Polar |
collection |
University of the Highlands and Islands: Research Database of UHI |
op_collection_id |
ftuhipublicatio |
language |
English |
description |
Sub‐Arctic habitats are being exposed to increasingly long periods of open water as sea ice continues to decline in thickness and extent. Some hypothesize that this will result in a reduction, and maybe total loss of sea ice derived (sympagic) carbon supply; however, the impact of such change on ecosystems requires further investigation. Here, we used the H‐Print biomarker approach that utilizes well‐defined indicators of both sympagic and phytoplanktic carbon, in combination with stable isotopes (δ15N), to study the effect of reducing sympagic carbon availability on beluga whales (Delphinapterus leucas) in the sub‐Arctic ecosystem of Cumberland Sound. Our data show that decreasing δ15N in belugas was negatively correlated with pelagic carbon (H‐Print) within their diet. We also identified a statistically significant (R2 = 0.82; p ≤ 0.01) change point in the proportion of sympagic/pelagic carbon within beluga around the year 2000, signified by consistently reducing δ15N, coupled with increasing pelagic carbon composition. This observed shift from sympagic to pelagic contribution to diet is likely to remain a feature of the Cumberland Sound ecosystem during the projected reduction of sea ice. |
format |
Article in Journal/Newspaper |
author |
Brown, T. A. Chrystal, E. Ferguson, S. H. Yurkowski, D. J. Watt, C. Hussey, N. E. Kelley, T. C. Belt, Simon T. |
spellingShingle |
Brown, T. A. Chrystal, E. Ferguson, S. H. Yurkowski, D. J. Watt, C. Hussey, N. E. Kelley, T. C. Belt, Simon T. Coupled changes between the H-Print biomarker and δ15N indicates a variable sea ice carbon contribution to the diet of Cumberland Sound beluga whales:Carbon source changes in beluga diet |
author_facet |
Brown, T. A. Chrystal, E. Ferguson, S. H. Yurkowski, D. J. Watt, C. Hussey, N. E. Kelley, T. C. Belt, Simon T. |
author_sort |
Brown, T. A. |
title |
Coupled changes between the H-Print biomarker and δ15N indicates a variable sea ice carbon contribution to the diet of Cumberland Sound beluga whales:Carbon source changes in beluga diet |
title_short |
Coupled changes between the H-Print biomarker and δ15N indicates a variable sea ice carbon contribution to the diet of Cumberland Sound beluga whales:Carbon source changes in beluga diet |
title_full |
Coupled changes between the H-Print biomarker and δ15N indicates a variable sea ice carbon contribution to the diet of Cumberland Sound beluga whales:Carbon source changes in beluga diet |
title_fullStr |
Coupled changes between the H-Print biomarker and δ15N indicates a variable sea ice carbon contribution to the diet of Cumberland Sound beluga whales:Carbon source changes in beluga diet |
title_full_unstemmed |
Coupled changes between the H-Print biomarker and δ15N indicates a variable sea ice carbon contribution to the diet of Cumberland Sound beluga whales:Carbon source changes in beluga diet |
title_sort |
coupled changes between the h-print biomarker and δ15n indicates a variable sea ice carbon contribution to the diet of cumberland sound beluga whales:carbon source changes in beluga diet |
publishDate |
2017 |
url |
https://pure.uhi.ac.uk/en/publications/cfbbc0c4-29dc-4df5-8752-39998f9c3e2f https://doi.org/10.1002/lno.10520 https://pureadmin.uhi.ac.uk/ws/files/13790212/Brown_et_al_2017.docx |
genre |
Beluga Beluga* Cumberland Sound Delphinapterus leucas Sea ice |
genre_facet |
Beluga Beluga* Cumberland Sound Delphinapterus leucas Sea ice |
op_source |
Brown , T A , Chrystal , E , Ferguson , S H , Yurkowski , D J , Watt , C , Hussey , N E , Kelley , T C & Belt , S T 2017 , ' Coupled changes between the H-Print biomarker and δ15N indicates a variable sea ice carbon contribution to the diet of Cumberland Sound beluga whales : Carbon source changes in beluga diet ' , Limnology and Oceanography , vol. 62 , pp. 1606-1619 . https://doi.org/10.1002/lno.10520 |
op_relation |
https://pure.uhi.ac.uk/en/publications/cfbbc0c4-29dc-4df5-8752-39998f9c3e2f |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/lno.10520 |
container_title |
Limnology and Oceanography |
container_volume |
62 |
container_issue |
4 |
container_start_page |
1606 |
op_container_end_page |
1619 |
_version_ |
1810435908656168960 |