Quantifying zoobenthic blue carbon storage across habitats within the Arctic’s Barents Sea
Introduction The Arctic sea ice extent in September (when it is at its lowest) has declined 13% Q10 per decade, and the Arctic Ocean is becoming a more Atlantic-influenced system. Rapid climate-forced changes are taking place in many high-latitude marine ecosystems. The Barents Sea is one such high-...
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Online Access: | http://dx.doi.org/10.3389/fmars.2023.1260884 https://www.frontiersin.org/articles/10.3389/fmars.2023.1260884/full |
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crfrontiers:10.3389/fmars.2023.1260884 2024-09-15T17:54:09+00:00 Quantifying zoobenthic blue carbon storage across habitats within the Arctic’s Barents Sea Souster, Terri A. Barnes, David K. A. Primicerio, Raul Jørgensen, Lis Lindal 2024 http://dx.doi.org/10.3389/fmars.2023.1260884 https://www.frontiersin.org/articles/10.3389/fmars.2023.1260884/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Marine Science volume 10 ISSN 2296-7745 journal-article 2024 crfrontiers https://doi.org/10.3389/fmars.2023.1260884 2024-08-06T04:05:46Z Introduction The Arctic sea ice extent in September (when it is at its lowest) has declined 13% Q10 per decade, and the Arctic Ocean is becoming a more Atlantic-influenced system. Rapid climate-forced changes are taking place in many high-latitude marine ecosystems. The Barents Sea is one such high-latitude shelf ecosystem, between approximately 70° and 80°N in the Norwegian Arctic. The purpose of the current study was to estimate zoobenthic blue carbon across multiple habitats within the Barents Sea (trough, basin, shelf, and shallows), potentially providing values to aid ecosystem-based management of these areas under future climate change scenarios. Method We tested this by capture and analysis of 947 high-resolution (each 405.7 × 340.6 mm, 12 MB, 5 megapixels) seabed images at 17 sites with latitudinal cline, linked to a collection of corresponding oceanographic data. Biotas within these images were identified to one of the 14 functional groups and the density was calculated. Mean stored carbon per individual was assigned by ash mass (AM) and ash-free dry mass (AFDM) of individuals caught within Agassiz trawl deployments at the same sites. Results Trough sites, except for one site (B16), have a low quantity of zoobenthic blue carbon compared with the shallow, shelf, and basin habitats. Discussion The results of a previous study focused entirely on trough habitats and are therefore difficult to scale up as the basis for a meaningful estimate of across-habitat zoobenthic blue carbon in the Barents Sea. Compared with the trough and the basin, the shelf and shallow habitats of the Barents Sea are also subjected to more trawling events through demersal fisheries and showed higher zoobenthic blue carbon stock values. Article in Journal/Newspaper Arctic Ocean Barents Sea Climate change Sea ice Frontiers (Publisher) Frontiers in Marine Science 10 |
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Introduction The Arctic sea ice extent in September (when it is at its lowest) has declined 13% Q10 per decade, and the Arctic Ocean is becoming a more Atlantic-influenced system. Rapid climate-forced changes are taking place in many high-latitude marine ecosystems. The Barents Sea is one such high-latitude shelf ecosystem, between approximately 70° and 80°N in the Norwegian Arctic. The purpose of the current study was to estimate zoobenthic blue carbon across multiple habitats within the Barents Sea (trough, basin, shelf, and shallows), potentially providing values to aid ecosystem-based management of these areas under future climate change scenarios. Method We tested this by capture and analysis of 947 high-resolution (each 405.7 × 340.6 mm, 12 MB, 5 megapixels) seabed images at 17 sites with latitudinal cline, linked to a collection of corresponding oceanographic data. Biotas within these images were identified to one of the 14 functional groups and the density was calculated. Mean stored carbon per individual was assigned by ash mass (AM) and ash-free dry mass (AFDM) of individuals caught within Agassiz trawl deployments at the same sites. Results Trough sites, except for one site (B16), have a low quantity of zoobenthic blue carbon compared with the shallow, shelf, and basin habitats. Discussion The results of a previous study focused entirely on trough habitats and are therefore difficult to scale up as the basis for a meaningful estimate of across-habitat zoobenthic blue carbon in the Barents Sea. Compared with the trough and the basin, the shelf and shallow habitats of the Barents Sea are also subjected to more trawling events through demersal fisheries and showed higher zoobenthic blue carbon stock values. |
format |
Article in Journal/Newspaper |
author |
Souster, Terri A. Barnes, David K. A. Primicerio, Raul Jørgensen, Lis Lindal |
spellingShingle |
Souster, Terri A. Barnes, David K. A. Primicerio, Raul Jørgensen, Lis Lindal Quantifying zoobenthic blue carbon storage across habitats within the Arctic’s Barents Sea |
author_facet |
Souster, Terri A. Barnes, David K. A. Primicerio, Raul Jørgensen, Lis Lindal |
author_sort |
Souster, Terri A. |
title |
Quantifying zoobenthic blue carbon storage across habitats within the Arctic’s Barents Sea |
title_short |
Quantifying zoobenthic blue carbon storage across habitats within the Arctic’s Barents Sea |
title_full |
Quantifying zoobenthic blue carbon storage across habitats within the Arctic’s Barents Sea |
title_fullStr |
Quantifying zoobenthic blue carbon storage across habitats within the Arctic’s Barents Sea |
title_full_unstemmed |
Quantifying zoobenthic blue carbon storage across habitats within the Arctic’s Barents Sea |
title_sort |
quantifying zoobenthic blue carbon storage across habitats within the arctic’s barents sea |
publisher |
Frontiers Media SA |
publishDate |
2024 |
url |
http://dx.doi.org/10.3389/fmars.2023.1260884 https://www.frontiersin.org/articles/10.3389/fmars.2023.1260884/full |
genre |
Arctic Ocean Barents Sea Climate change Sea ice |
genre_facet |
Arctic Ocean Barents Sea Climate change Sea ice |
op_source |
Frontiers in Marine Science volume 10 ISSN 2296-7745 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fmars.2023.1260884 |
container_title |
Frontiers in Marine Science |
container_volume |
10 |
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1810430371075981312 |