Sea ice presence is linked to higher carbon export and vertical microbial connectivity in the Eurasian Arctic Ocean
Arctic Ocean sea ice cover is shrinking due to warming. Long-term sediment trap data shows higher export efficiency of particulate organic carbon in regions with seasonal sea ice compared to regions without sea ice. To investigate this sea-ice enhanced export, we compared how different early summer...
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Online Access: | https://epic.awi.de/id/eprint/54926/ https://hdl.handle.net/10013/epic.ee4d6a2d-2355-4989-a18e-6c0568318f0b |
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ftawi:oai:epic.awi.de:54926 2023-05-15T14:28:01+02:00 Sea ice presence is linked to higher carbon export and vertical microbial connectivity in the Eurasian Arctic Ocean Fadeev, Eduard Rogge, Andreas Ramondenc, Simon Nöthig, Eva-Maria Wekerle, Claudia Bienhold, Christina Salter, Ian Waite, Anya Hehemann, Laura Boetius, Antje Iversen, Morten 2021 https://epic.awi.de/id/eprint/54926/ https://hdl.handle.net/10013/epic.ee4d6a2d-2355-4989-a18e-6c0568318f0b unknown Fadeev, E. orcid:0000-0002-2289-2949 , Rogge, A. orcid:0000-0002-4036-4082 , Ramondenc, S. , Nöthig, E. M. orcid:0000-0002-7527-7827 , Wekerle, C. orcid:0000-0001-9985-0950 , Bienhold, C. orcid:0000-0003-2269-9468 , Salter, I. orcid:0000-0002-4513-0314 , Waite, A. orcid:0000-0003-2965-0296 , Hehemann, L. , Boetius, A. orcid:0000-0003-2117-4176 and Iversen, M. orcid:0000-0002-5287-1110 (2021) Sea ice presence is linked to higher carbon export and vertical microbial connectivity in the Eurasian Arctic Ocean , Communications Biology, 4 (1255) . doi:10.1038/s42003-021-02776-w <https://doi.org/10.1038/s42003-021-02776-w> , hdl:10013/epic.ee4d6a2d-2355-4989-a18e-6c0568318f0b EPIC3Communications Biology, 4(1255) Article isiRev 2021 ftawi https://doi.org/10.1038/s42003-021-02776-w 2021-12-24T15:46:35Z Arctic Ocean sea ice cover is shrinking due to warming. Long-term sediment trap data shows higher export efficiency of particulate organic carbon in regions with seasonal sea ice compared to regions without sea ice. To investigate this sea-ice enhanced export, we compared how different early summer phytoplankton communities in seasonally ice-free and ice-covered regions of the Fram Strait affect carbon export and vertical dispersal of microbes. In situ collected aggregates revealed two-fold higher carbon export of diatom-rich aggregates in ice-covered regions, compared to Phaeocystis aggregates in the ice-free region. Using microbial source tracking, we found that ice-covered regions were also associated with more surface-born microbial clades exported to the deep sea. Taken together, our results showed that ice-covered regions are responsible for high export efficiency and provide strong vertical microbial connectivity. Therefore, continuous sea-ice loss may decrease the vertical export efficiency, and thus the pelagic-benthic coupling, with potential repercussions for Arctic deep-sea ecosystems. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Fram Strait Phytoplankton Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Arctic Ocean Communications Biology 4 1 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Arctic Ocean sea ice cover is shrinking due to warming. Long-term sediment trap data shows higher export efficiency of particulate organic carbon in regions with seasonal sea ice compared to regions without sea ice. To investigate this sea-ice enhanced export, we compared how different early summer phytoplankton communities in seasonally ice-free and ice-covered regions of the Fram Strait affect carbon export and vertical dispersal of microbes. In situ collected aggregates revealed two-fold higher carbon export of diatom-rich aggregates in ice-covered regions, compared to Phaeocystis aggregates in the ice-free region. Using microbial source tracking, we found that ice-covered regions were also associated with more surface-born microbial clades exported to the deep sea. Taken together, our results showed that ice-covered regions are responsible for high export efficiency and provide strong vertical microbial connectivity. Therefore, continuous sea-ice loss may decrease the vertical export efficiency, and thus the pelagic-benthic coupling, with potential repercussions for Arctic deep-sea ecosystems. |
format |
Article in Journal/Newspaper |
author |
Fadeev, Eduard Rogge, Andreas Ramondenc, Simon Nöthig, Eva-Maria Wekerle, Claudia Bienhold, Christina Salter, Ian Waite, Anya Hehemann, Laura Boetius, Antje Iversen, Morten |
spellingShingle |
Fadeev, Eduard Rogge, Andreas Ramondenc, Simon Nöthig, Eva-Maria Wekerle, Claudia Bienhold, Christina Salter, Ian Waite, Anya Hehemann, Laura Boetius, Antje Iversen, Morten Sea ice presence is linked to higher carbon export and vertical microbial connectivity in the Eurasian Arctic Ocean |
author_facet |
Fadeev, Eduard Rogge, Andreas Ramondenc, Simon Nöthig, Eva-Maria Wekerle, Claudia Bienhold, Christina Salter, Ian Waite, Anya Hehemann, Laura Boetius, Antje Iversen, Morten |
author_sort |
Fadeev, Eduard |
title |
Sea ice presence is linked to higher carbon export and vertical microbial connectivity in the Eurasian Arctic Ocean |
title_short |
Sea ice presence is linked to higher carbon export and vertical microbial connectivity in the Eurasian Arctic Ocean |
title_full |
Sea ice presence is linked to higher carbon export and vertical microbial connectivity in the Eurasian Arctic Ocean |
title_fullStr |
Sea ice presence is linked to higher carbon export and vertical microbial connectivity in the Eurasian Arctic Ocean |
title_full_unstemmed |
Sea ice presence is linked to higher carbon export and vertical microbial connectivity in the Eurasian Arctic Ocean |
title_sort |
sea ice presence is linked to higher carbon export and vertical microbial connectivity in the eurasian arctic ocean |
publishDate |
2021 |
url |
https://epic.awi.de/id/eprint/54926/ https://hdl.handle.net/10013/epic.ee4d6a2d-2355-4989-a18e-6c0568318f0b |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Arctic Ocean Fram Strait Phytoplankton Sea ice |
genre_facet |
Arctic Arctic Arctic Ocean Fram Strait Phytoplankton Sea ice |
op_source |
EPIC3Communications Biology, 4(1255) |
op_relation |
Fadeev, E. orcid:0000-0002-2289-2949 , Rogge, A. orcid:0000-0002-4036-4082 , Ramondenc, S. , Nöthig, E. M. orcid:0000-0002-7527-7827 , Wekerle, C. orcid:0000-0001-9985-0950 , Bienhold, C. orcid:0000-0003-2269-9468 , Salter, I. orcid:0000-0002-4513-0314 , Waite, A. orcid:0000-0003-2965-0296 , Hehemann, L. , Boetius, A. orcid:0000-0003-2117-4176 and Iversen, M. orcid:0000-0002-5287-1110 (2021) Sea ice presence is linked to higher carbon export and vertical microbial connectivity in the Eurasian Arctic Ocean , Communications Biology, 4 (1255) . doi:10.1038/s42003-021-02776-w <https://doi.org/10.1038/s42003-021-02776-w> , hdl:10013/epic.ee4d6a2d-2355-4989-a18e-6c0568318f0b |
op_doi |
https://doi.org/10.1038/s42003-021-02776-w |
container_title |
Communications Biology |
container_volume |
4 |
container_issue |
1 |
_version_ |
1766302150924697600 |