Prevalent fingerprint of marine macroalgae in arctic surface sediments
Macroalgal forests export much of their production, partly supporting food webs and carbon stocks beyond their habitat, but evidence of their contribution in sediment carbon stocks is poor. We test the hypothesis that macroalgae contribute to carbon stocks in arctic marine sediments. We used environ...
Published in: | Science of The Total Environment |
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Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2023
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Online Access: | https://pure.au.dk/portal/en/publications/8cea485d-9da5-4636-ab2e-ad9595a42fae https://doi.org/10.1016/j.scitotenv.2023.165507 https://pure.au.dk/ws/files/358520744/1-s2.0-S004896972304130X-main.pdf http://www.scopus.com/inward/record.url?scp=85165963674&partnerID=8YFLogxK |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/8cea485d-9da5-4636-ab2e-ad9595a42fae 2024-02-11T09:59:30+01:00 Prevalent fingerprint of marine macroalgae in arctic surface sediments Ørberg, Sarah Bachmann Quesada, Carlos M Duarte Geraldi, Nathan Sejr, Mikael Kristian Wegeberg, Susse Hansen, Jørgen L. S. Krause-Jensen, Dorte 2023-11 application/pdf https://pure.au.dk/portal/en/publications/8cea485d-9da5-4636-ab2e-ad9595a42fae https://doi.org/10.1016/j.scitotenv.2023.165507 https://pure.au.dk/ws/files/358520744/1-s2.0-S004896972304130X-main.pdf http://www.scopus.com/inward/record.url?scp=85165963674&partnerID=8YFLogxK eng eng https://pure.au.dk/portal/en/publications/8cea485d-9da5-4636-ab2e-ad9595a42fae info:eu-repo/semantics/openAccess Ørberg , S B , Quesada , C M D , Geraldi , N , Sejr , M K , Wegeberg , S , Hansen , J L S & Krause-Jensen , D 2023 , ' Prevalent fingerprint of marine macroalgae in arctic surface sediments ' , Science of the Total Environment , vol. 898 , 165507 . https://doi.org/10.1016/j.scitotenv.2023.165507 Blue carbon Carbon stocks Eelgrass Environmental DNA Kelp Stable isotopes article 2023 ftuniaarhuspubl https://doi.org/10.1016/j.scitotenv.2023.165507 2024-01-18T00:01:16Z Macroalgal forests export much of their production, partly supporting food webs and carbon stocks beyond their habitat, but evidence of their contribution in sediment carbon stocks is poor. We test the hypothesis that macroalgae contribute to carbon stocks in arctic marine sediments. We used environmental DNA (eDNA) fingerprinting on a large-scale set of surface sediment samples from Greenland and Svalbard. We evaluated eDNA results by comparing with traditional survey and tracer methods. The eDNA-based survey identified macroalgae in 94 % of the sediment samples covering shallow nearshore areas to 1460 m depth and 350 km offshore, with highest sequence abundance nearshore and with dominance of brown macroalgae. Overall, the eDNA results reflected the potential source communities of macroalgae and eelgrass assessed by traditional surveys, with the most abundant orders being common among different methods. A stable isotope analysis showed a considerable contribution from macroalgae in sediments although with high uncertainty, highlighting eDNA as a great improvement and supplement for documenting macroalgae as a contributor to sediment carbon stocks. Conclusively, we provide evidence for a prevalent contribution of macroalgal forests in arctic surface sediments, nearshore as well as offshore, identifying brown algae as main contributors. Article in Journal/Newspaper Arctic Arctic Greenland Svalbard Aarhus University: Research Arctic Greenland Svalbard Science of The Total Environment 898 165507 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Blue carbon Carbon stocks Eelgrass Environmental DNA Kelp Stable isotopes |
spellingShingle |
Blue carbon Carbon stocks Eelgrass Environmental DNA Kelp Stable isotopes Ørberg, Sarah Bachmann Quesada, Carlos M Duarte Geraldi, Nathan Sejr, Mikael Kristian Wegeberg, Susse Hansen, Jørgen L. S. Krause-Jensen, Dorte Prevalent fingerprint of marine macroalgae in arctic surface sediments |
topic_facet |
Blue carbon Carbon stocks Eelgrass Environmental DNA Kelp Stable isotopes |
description |
Macroalgal forests export much of their production, partly supporting food webs and carbon stocks beyond their habitat, but evidence of their contribution in sediment carbon stocks is poor. We test the hypothesis that macroalgae contribute to carbon stocks in arctic marine sediments. We used environmental DNA (eDNA) fingerprinting on a large-scale set of surface sediment samples from Greenland and Svalbard. We evaluated eDNA results by comparing with traditional survey and tracer methods. The eDNA-based survey identified macroalgae in 94 % of the sediment samples covering shallow nearshore areas to 1460 m depth and 350 km offshore, with highest sequence abundance nearshore and with dominance of brown macroalgae. Overall, the eDNA results reflected the potential source communities of macroalgae and eelgrass assessed by traditional surveys, with the most abundant orders being common among different methods. A stable isotope analysis showed a considerable contribution from macroalgae in sediments although with high uncertainty, highlighting eDNA as a great improvement and supplement for documenting macroalgae as a contributor to sediment carbon stocks. Conclusively, we provide evidence for a prevalent contribution of macroalgal forests in arctic surface sediments, nearshore as well as offshore, identifying brown algae as main contributors. |
format |
Article in Journal/Newspaper |
author |
Ørberg, Sarah Bachmann Quesada, Carlos M Duarte Geraldi, Nathan Sejr, Mikael Kristian Wegeberg, Susse Hansen, Jørgen L. S. Krause-Jensen, Dorte |
author_facet |
Ørberg, Sarah Bachmann Quesada, Carlos M Duarte Geraldi, Nathan Sejr, Mikael Kristian Wegeberg, Susse Hansen, Jørgen L. S. Krause-Jensen, Dorte |
author_sort |
Ørberg, Sarah Bachmann |
title |
Prevalent fingerprint of marine macroalgae in arctic surface sediments |
title_short |
Prevalent fingerprint of marine macroalgae in arctic surface sediments |
title_full |
Prevalent fingerprint of marine macroalgae in arctic surface sediments |
title_fullStr |
Prevalent fingerprint of marine macroalgae in arctic surface sediments |
title_full_unstemmed |
Prevalent fingerprint of marine macroalgae in arctic surface sediments |
title_sort |
prevalent fingerprint of marine macroalgae in arctic surface sediments |
publishDate |
2023 |
url |
https://pure.au.dk/portal/en/publications/8cea485d-9da5-4636-ab2e-ad9595a42fae https://doi.org/10.1016/j.scitotenv.2023.165507 https://pure.au.dk/ws/files/358520744/1-s2.0-S004896972304130X-main.pdf http://www.scopus.com/inward/record.url?scp=85165963674&partnerID=8YFLogxK |
geographic |
Arctic Greenland Svalbard |
geographic_facet |
Arctic Greenland Svalbard |
genre |
Arctic Arctic Greenland Svalbard |
genre_facet |
Arctic Arctic Greenland Svalbard |
op_source |
Ørberg , S B , Quesada , C M D , Geraldi , N , Sejr , M K , Wegeberg , S , Hansen , J L S & Krause-Jensen , D 2023 , ' Prevalent fingerprint of marine macroalgae in arctic surface sediments ' , Science of the Total Environment , vol. 898 , 165507 . https://doi.org/10.1016/j.scitotenv.2023.165507 |
op_relation |
https://pure.au.dk/portal/en/publications/8cea485d-9da5-4636-ab2e-ad9595a42fae |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.scitotenv.2023.165507 |
container_title |
Science of The Total Environment |
container_volume |
898 |
container_start_page |
165507 |
_version_ |
1790595376521150464 |