Water masses shape pico-nano eukaryotic communities of the Weddell Sea
Polar oceans belong to the most productive and rapidly changing environments, yet our understanding of this fragile ecosystem remains limited. Here we present an analysis of a unique set of DNA metabarcoding samples from the western Weddell Sea sampled throughout the whole water column and across fi...
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ftpubmed:oai:pubmedcentral.nih.gov:9849203 2023-05-15T18:43:13+02:00 Water masses shape pico-nano eukaryotic communities of the Weddell Sea Flegontova, Olga Flegontov, Pavel Jachníková, Nikola Lukeš, Julius Horák, Aleš 2023-01-18 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9849203/ https://doi.org/10.1038/s42003-023-04452-7 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9849203/ http://dx.doi.org/10.1038/s42003-023-04452-7 © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . CC-BY Commun Biol Article Text 2023 ftpubmed https://doi.org/10.1038/s42003-023-04452-7 2023-01-22T02:10:48Z Polar oceans belong to the most productive and rapidly changing environments, yet our understanding of this fragile ecosystem remains limited. Here we present an analysis of a unique set of DNA metabarcoding samples from the western Weddell Sea sampled throughout the whole water column and across five water masses with different characteristics and different origin. We focus on factors affecting the distribution of planktonic pico-nano eukaryotes and observe an ecological succession of eukaryotic communities as the water masses move away from the surface and as oxygen becomes depleted with time. At the beginning of this succession, in the photic zone, algae, bacteriovores, and predators of small eukaryotes dominate the community, while another community develops as the water sinks deeper, mostly composed of parasitoids (syndinians), mesoplankton predators (radiolarians), and diplonemids. The strongly correlated distribution of syndinians and diplonemids along the depth and oxygen gradients suggests their close ecological link and moves us closer to understanding the biological role of the latter group in the ocean ecosystem. Text Weddell Sea PubMed Central (PMC) Weddell Weddell Sea Communications Biology 6 1 |
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Article Flegontova, Olga Flegontov, Pavel Jachníková, Nikola Lukeš, Julius Horák, Aleš Water masses shape pico-nano eukaryotic communities of the Weddell Sea |
topic_facet |
Article |
description |
Polar oceans belong to the most productive and rapidly changing environments, yet our understanding of this fragile ecosystem remains limited. Here we present an analysis of a unique set of DNA metabarcoding samples from the western Weddell Sea sampled throughout the whole water column and across five water masses with different characteristics and different origin. We focus on factors affecting the distribution of planktonic pico-nano eukaryotes and observe an ecological succession of eukaryotic communities as the water masses move away from the surface and as oxygen becomes depleted with time. At the beginning of this succession, in the photic zone, algae, bacteriovores, and predators of small eukaryotes dominate the community, while another community develops as the water sinks deeper, mostly composed of parasitoids (syndinians), mesoplankton predators (radiolarians), and diplonemids. The strongly correlated distribution of syndinians and diplonemids along the depth and oxygen gradients suggests their close ecological link and moves us closer to understanding the biological role of the latter group in the ocean ecosystem. |
format |
Text |
author |
Flegontova, Olga Flegontov, Pavel Jachníková, Nikola Lukeš, Julius Horák, Aleš |
author_facet |
Flegontova, Olga Flegontov, Pavel Jachníková, Nikola Lukeš, Julius Horák, Aleš |
author_sort |
Flegontova, Olga |
title |
Water masses shape pico-nano eukaryotic communities of the Weddell Sea |
title_short |
Water masses shape pico-nano eukaryotic communities of the Weddell Sea |
title_full |
Water masses shape pico-nano eukaryotic communities of the Weddell Sea |
title_fullStr |
Water masses shape pico-nano eukaryotic communities of the Weddell Sea |
title_full_unstemmed |
Water masses shape pico-nano eukaryotic communities of the Weddell Sea |
title_sort |
water masses shape pico-nano eukaryotic communities of the weddell sea |
publisher |
Nature Publishing Group UK |
publishDate |
2023 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9849203/ https://doi.org/10.1038/s42003-023-04452-7 |
geographic |
Weddell Weddell Sea |
geographic_facet |
Weddell Weddell Sea |
genre |
Weddell Sea |
genre_facet |
Weddell Sea |
op_source |
Commun Biol |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9849203/ http://dx.doi.org/10.1038/s42003-023-04452-7 |
op_rights |
© The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s42003-023-04452-7 |
container_title |
Communications Biology |
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6 |
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1 |
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