Diversity and biogeography of planktonic diatoms in Svalbard fjords: The role of dispersal and Arctic endemism in phytoplankton community structuring
Understanding the processes that shape the community structure of Arctic phytoplankton is crucial for predicting responses of Arctic ecosystems to the ongoing ocean warming. In particular, little is known about the importance of phytoplankton dispersal by the North Atlantic Current and the prevalenc...
Published in: | Elementa: Science of the Anthropocene |
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Online Access: | http://hdl.handle.net/10852/97962 https://doi.org/10.1525/elementa.2021.00117 |
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ftoslouniv:oai:www.duo.uio.no:10852/97962 2024-10-06T13:44:59+00:00 Diversity and biogeography of planktonic diatoms in Svalbard fjords: The role of dispersal and Arctic endemism in phytoplankton community structuring ENEngelskEnglishDiversity and biogeography of planktonic diatoms in Svalbard fjords: The role of dispersal and Arctic endemism in phytoplankton community structuring Supraha, Luka Klemm, Kerstin Gran-Stadniczeñko, Sandra Hörstmann, Cora Vaulot, Daniel Edvardsen, Bente John, Uwe 2022-11-29T16:48:34Z http://hdl.handle.net/10852/97962 https://doi.org/10.1525/elementa.2021.00117 EN eng BioOne NFR/282936 NFR/268286 Supraha, Luka Klemm, Kerstin Gran-Stadniczeñko, Sandra Hörstmann, Cora Vaulot, Daniel Edvardsen, Bente John, Uwe . Diversity and biogeography of planktonic diatoms in Svalbard fjords: The role of dispersal and Arctic endemism in phytoplankton community structuring. Elementa: Science of the Anthropocene. 2022, 10(1), 00117 http://hdl.handle.net/10852/97962 2084568 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Elementa: Science of the Anthropocene&rft.volume=10&rft.spage=00117&rft.date=2022 Elementa: Science of the Anthropocene 10 1 00117 https://doi.org/10.1525/elementa.2021.00117 Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ 2325-1026 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2022 ftoslouniv https://doi.org/10.1525/elementa.2021.00117 2024-09-12T05:44:05Z Understanding the processes that shape the community structure of Arctic phytoplankton is crucial for predicting responses of Arctic ecosystems to the ongoing ocean warming. In particular, little is known about the importance of phytoplankton dispersal by the North Atlantic Current and the prevalence and maintenance of Arctic endemism. We investigated the diversity and biogeography of diatoms from five Svalbard fjords and the Hausgarten observatory (Fram Strait) by combining diatom cultivation and 18S rRNA gene metabarcoding. In total, 50 diatom strains were isolated from the area during the HE492 cruise in August 2017. The strains were identified taxonomically using molecular and morphological approaches, and their biogeographic distribution was mapped using the local metabarcoding dataset and a global compilation of published metabarcoding datasets. Biogeographic analysis was also conducted for the locally most abundant diatom metabarcoding amplicon sequence variants. The biogeographic analyses demonstrated that Arctic diatoms exhibit three general biogeographic distribution types: Arctic, Arctic-temperate, and cosmopolitan. At Hausgarten and in outer Isfjorden on the west coast of Svalbard, the communities were dominated by genotypes with Arctic-temperate and cosmopolitan distribution. Diatom communities in nearby Van Mijenfjorden, inner Isfjorden and Kongsfjorden were dominated by genotypes with Arctic-temperate distribution, and cosmopolitan species were less abundant. The genotypes endemic to the Arctic had lower abundance on the west coast of Svalbard. The two northernmost fjords (Woodfjorden and Wijdefjorden) had a higher abundance of genotypes endemic to the Arctic. Our results demonstrate that the diatom communities in the Svalbard area consist of genotypes endemic to the Arctic, and genotypes with broader biogeographic distribution, all of which are further structured by local environmental gradients. Finer biogeographic patterns observed within Arctic-temperate and cosmopolitan genotypes suggest that ... Article in Journal/Newspaper Arctic Arctic Fram Strait Isfjord* Isfjorden Kongsfjord* Kongsfjorden north atlantic current North Atlantic Phytoplankton Svalbard Van Mijenfjorden Wijdefjord* Woodfjord* Woodfjorden Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Arctic Svalbard Van Mijenfjorden ENVELOPE(14.667,14.667,77.717,77.717) Woodfjorden ENVELOPE(14.000,14.000,79.833,79.833) Wijdefjorden ENVELOPE(15.569,15.569,79.543,79.543) Elementa: Science of the Anthropocene 10 1 |
institution |
Open Polar |
collection |
Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
description |
Understanding the processes that shape the community structure of Arctic phytoplankton is crucial for predicting responses of Arctic ecosystems to the ongoing ocean warming. In particular, little is known about the importance of phytoplankton dispersal by the North Atlantic Current and the prevalence and maintenance of Arctic endemism. We investigated the diversity and biogeography of diatoms from five Svalbard fjords and the Hausgarten observatory (Fram Strait) by combining diatom cultivation and 18S rRNA gene metabarcoding. In total, 50 diatom strains were isolated from the area during the HE492 cruise in August 2017. The strains were identified taxonomically using molecular and morphological approaches, and their biogeographic distribution was mapped using the local metabarcoding dataset and a global compilation of published metabarcoding datasets. Biogeographic analysis was also conducted for the locally most abundant diatom metabarcoding amplicon sequence variants. The biogeographic analyses demonstrated that Arctic diatoms exhibit three general biogeographic distribution types: Arctic, Arctic-temperate, and cosmopolitan. At Hausgarten and in outer Isfjorden on the west coast of Svalbard, the communities were dominated by genotypes with Arctic-temperate and cosmopolitan distribution. Diatom communities in nearby Van Mijenfjorden, inner Isfjorden and Kongsfjorden were dominated by genotypes with Arctic-temperate distribution, and cosmopolitan species were less abundant. The genotypes endemic to the Arctic had lower abundance on the west coast of Svalbard. The two northernmost fjords (Woodfjorden and Wijdefjorden) had a higher abundance of genotypes endemic to the Arctic. Our results demonstrate that the diatom communities in the Svalbard area consist of genotypes endemic to the Arctic, and genotypes with broader biogeographic distribution, all of which are further structured by local environmental gradients. Finer biogeographic patterns observed within Arctic-temperate and cosmopolitan genotypes suggest that ... |
format |
Article in Journal/Newspaper |
author |
Supraha, Luka Klemm, Kerstin Gran-Stadniczeñko, Sandra Hörstmann, Cora Vaulot, Daniel Edvardsen, Bente John, Uwe |
spellingShingle |
Supraha, Luka Klemm, Kerstin Gran-Stadniczeñko, Sandra Hörstmann, Cora Vaulot, Daniel Edvardsen, Bente John, Uwe Diversity and biogeography of planktonic diatoms in Svalbard fjords: The role of dispersal and Arctic endemism in phytoplankton community structuring |
author_facet |
Supraha, Luka Klemm, Kerstin Gran-Stadniczeñko, Sandra Hörstmann, Cora Vaulot, Daniel Edvardsen, Bente John, Uwe |
author_sort |
Supraha, Luka |
title |
Diversity and biogeography of planktonic diatoms in Svalbard fjords: The role of dispersal and Arctic endemism in phytoplankton community structuring |
title_short |
Diversity and biogeography of planktonic diatoms in Svalbard fjords: The role of dispersal and Arctic endemism in phytoplankton community structuring |
title_full |
Diversity and biogeography of planktonic diatoms in Svalbard fjords: The role of dispersal and Arctic endemism in phytoplankton community structuring |
title_fullStr |
Diversity and biogeography of planktonic diatoms in Svalbard fjords: The role of dispersal and Arctic endemism in phytoplankton community structuring |
title_full_unstemmed |
Diversity and biogeography of planktonic diatoms in Svalbard fjords: The role of dispersal and Arctic endemism in phytoplankton community structuring |
title_sort |
diversity and biogeography of planktonic diatoms in svalbard fjords: the role of dispersal and arctic endemism in phytoplankton community structuring |
publisher |
BioOne |
publishDate |
2022 |
url |
http://hdl.handle.net/10852/97962 https://doi.org/10.1525/elementa.2021.00117 |
long_lat |
ENVELOPE(14.667,14.667,77.717,77.717) ENVELOPE(14.000,14.000,79.833,79.833) ENVELOPE(15.569,15.569,79.543,79.543) |
geographic |
Arctic Svalbard Van Mijenfjorden Woodfjorden Wijdefjorden |
geographic_facet |
Arctic Svalbard Van Mijenfjorden Woodfjorden Wijdefjorden |
genre |
Arctic Arctic Fram Strait Isfjord* Isfjorden Kongsfjord* Kongsfjorden north atlantic current North Atlantic Phytoplankton Svalbard Van Mijenfjorden Wijdefjord* Woodfjord* Woodfjorden |
genre_facet |
Arctic Arctic Fram Strait Isfjord* Isfjorden Kongsfjord* Kongsfjorden north atlantic current North Atlantic Phytoplankton Svalbard Van Mijenfjorden Wijdefjord* Woodfjord* Woodfjorden |
op_source |
2325-1026 |
op_relation |
NFR/282936 NFR/268286 Supraha, Luka Klemm, Kerstin Gran-Stadniczeñko, Sandra Hörstmann, Cora Vaulot, Daniel Edvardsen, Bente John, Uwe . Diversity and biogeography of planktonic diatoms in Svalbard fjords: The role of dispersal and Arctic endemism in phytoplankton community structuring. Elementa: Science of the Anthropocene. 2022, 10(1), 00117 http://hdl.handle.net/10852/97962 2084568 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Elementa: Science of the Anthropocene&rft.volume=10&rft.spage=00117&rft.date=2022 Elementa: Science of the Anthropocene 10 1 00117 https://doi.org/10.1525/elementa.2021.00117 |
op_rights |
Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1525/elementa.2021.00117 |
container_title |
Elementa: Science of the Anthropocene |
container_volume |
10 |
container_issue |
1 |
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1812173404237725696 |