Diversity of microbial eukaryotes along the West Antarctic Peninsula in austral spring
© The Author(s), 2022. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Grattepanche, J.-D., Jeffrey, W., Gast, R., & Sanders, R. Diversity of microbial eukaryotes along the West Antarctic Peninsula in austral spring...
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Online Access: | https://hdl.handle.net/1912/29367 |
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/29367 2023-05-15T13:48:31+02:00 Diversity of microbial eukaryotes along the West Antarctic Peninsula in austral spring Grattepanche, Jean-David Jeffrey, Wade H. Gast, Rebecca J. Sanders, Robert W. 2022-05-16 https://hdl.handle.net/1912/29367 unknown Frontiers Media https://doi.org/10.3389/fmicb.2022.844856 Grattepanche, J.-D., Jeffrey, W., Gast, R., & Sanders, R. (2022). Diversity of microbial eukaryotes along the West Antarctic Peninsula in austral spring. Frontiers in Microbiology, 13, 844856. https://hdl.handle.net/1912/29367 doi:10.3389/fmicb.2022.844856 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ CC-BY Grattepanche, J.-D., Jeffrey, W., Gast, R., & Sanders, R. (2022). Diversity of microbial eukaryotes along the West Antarctic Peninsula in austral spring. Frontiers in Microbiology, 13, 844856. doi:10.3389/fmicb.2022.844856 picoplankton nanoplankton microplankton Antarctic protists high-throughput sequencing RNA community Article 2022 ftwhoas https://doi.org/10.3389/fmicb.2022.844856 2022-09-24T22:56:58Z © The Author(s), 2022. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Grattepanche, J.-D., Jeffrey, W., Gast, R., & Sanders, R. Diversity of microbial eukaryotes along the West Antarctic Peninsula in austral spring. Frontiers in Microbiology, 13, (2022): 844856, https://doi.org/10.3389/fmicb.2022.844856. During a cruise from October to November 2019, along the West Antarctic Peninsula, between 64.32 and 68.37°S, we assessed the diversity and composition of the active microbial eukaryotic community within three size fractions: micro- (> 20 μm), nano- (20–5 μm), and pico-size fractions (5–0.2 μm). The communities and the environmental parameters displayed latitudinal gradients, and we observed a strong similarity in the microbial eukaryotic communities as well as the environmental parameters between the sub-surface and the deep chlorophyll maximum (DCM) depths. Chlorophyll concentrations were low, and the mixed layer was shallow for most of the 17 stations sampled. The richness of the microplankton was higher in Marguerite Bay (our southernmost stations), compared to more northern stations, while the diversity for the nano- and pico-plankton was relatively stable across latitude. The microplankton communities were dominated by autotrophs, mostly diatoms, while mixotrophs (phototrophs-consuming bacteria and kleptoplastidic ciliates, mostly alveolates, and cryptophytes) were the most abundant and active members of the nano- and picoplankton communities. While phototrophy was the dominant trophic mode, heterotrophy (mixotrophy, phagotrophy, and parasitism) tended to increase southward. The samples from Marguerite Bay showed a distinct community with a high diversity of nanoplankton predators, including spirotrich ciliates, and dinoflagellates, while cryptophytes were observed elsewhere. Some lineages were significantly related—either positively or negatively—to ice coverage (e.g., positive for Pelagophyceae, negative for ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Antarctic Antarctic Peninsula Austral Marguerite ENVELOPE(141.378,141.378,-66.787,-66.787) Marguerite Bay ENVELOPE(-68.000,-68.000,-68.500,-68.500) Frontiers in Microbiology 13 |
institution |
Open Polar |
collection |
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
op_collection_id |
ftwhoas |
language |
unknown |
topic |
picoplankton nanoplankton microplankton Antarctic protists high-throughput sequencing RNA community |
spellingShingle |
picoplankton nanoplankton microplankton Antarctic protists high-throughput sequencing RNA community Grattepanche, Jean-David Jeffrey, Wade H. Gast, Rebecca J. Sanders, Robert W. Diversity of microbial eukaryotes along the West Antarctic Peninsula in austral spring |
topic_facet |
picoplankton nanoplankton microplankton Antarctic protists high-throughput sequencing RNA community |
description |
© The Author(s), 2022. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Grattepanche, J.-D., Jeffrey, W., Gast, R., & Sanders, R. Diversity of microbial eukaryotes along the West Antarctic Peninsula in austral spring. Frontiers in Microbiology, 13, (2022): 844856, https://doi.org/10.3389/fmicb.2022.844856. During a cruise from October to November 2019, along the West Antarctic Peninsula, between 64.32 and 68.37°S, we assessed the diversity and composition of the active microbial eukaryotic community within three size fractions: micro- (> 20 μm), nano- (20–5 μm), and pico-size fractions (5–0.2 μm). The communities and the environmental parameters displayed latitudinal gradients, and we observed a strong similarity in the microbial eukaryotic communities as well as the environmental parameters between the sub-surface and the deep chlorophyll maximum (DCM) depths. Chlorophyll concentrations were low, and the mixed layer was shallow for most of the 17 stations sampled. The richness of the microplankton was higher in Marguerite Bay (our southernmost stations), compared to more northern stations, while the diversity for the nano- and pico-plankton was relatively stable across latitude. The microplankton communities were dominated by autotrophs, mostly diatoms, while mixotrophs (phototrophs-consuming bacteria and kleptoplastidic ciliates, mostly alveolates, and cryptophytes) were the most abundant and active members of the nano- and picoplankton communities. While phototrophy was the dominant trophic mode, heterotrophy (mixotrophy, phagotrophy, and parasitism) tended to increase southward. The samples from Marguerite Bay showed a distinct community with a high diversity of nanoplankton predators, including spirotrich ciliates, and dinoflagellates, while cryptophytes were observed elsewhere. Some lineages were significantly related—either positively or negatively—to ice coverage (e.g., positive for Pelagophyceae, negative for ... |
format |
Article in Journal/Newspaper |
author |
Grattepanche, Jean-David Jeffrey, Wade H. Gast, Rebecca J. Sanders, Robert W. |
author_facet |
Grattepanche, Jean-David Jeffrey, Wade H. Gast, Rebecca J. Sanders, Robert W. |
author_sort |
Grattepanche, Jean-David |
title |
Diversity of microbial eukaryotes along the West Antarctic Peninsula in austral spring |
title_short |
Diversity of microbial eukaryotes along the West Antarctic Peninsula in austral spring |
title_full |
Diversity of microbial eukaryotes along the West Antarctic Peninsula in austral spring |
title_fullStr |
Diversity of microbial eukaryotes along the West Antarctic Peninsula in austral spring |
title_full_unstemmed |
Diversity of microbial eukaryotes along the West Antarctic Peninsula in austral spring |
title_sort |
diversity of microbial eukaryotes along the west antarctic peninsula in austral spring |
publisher |
Frontiers Media |
publishDate |
2022 |
url |
https://hdl.handle.net/1912/29367 |
long_lat |
ENVELOPE(141.378,141.378,-66.787,-66.787) ENVELOPE(-68.000,-68.000,-68.500,-68.500) |
geographic |
Antarctic Antarctic Peninsula Austral Marguerite Marguerite Bay |
geographic_facet |
Antarctic Antarctic Peninsula Austral Marguerite Marguerite Bay |
genre |
Antarc* Antarctic Antarctic Peninsula |
genre_facet |
Antarc* Antarctic Antarctic Peninsula |
op_source |
Grattepanche, J.-D., Jeffrey, W., Gast, R., & Sanders, R. (2022). Diversity of microbial eukaryotes along the West Antarctic Peninsula in austral spring. Frontiers in Microbiology, 13, 844856. doi:10.3389/fmicb.2022.844856 |
op_relation |
https://doi.org/10.3389/fmicb.2022.844856 Grattepanche, J.-D., Jeffrey, W., Gast, R., & Sanders, R. (2022). Diversity of microbial eukaryotes along the West Antarctic Peninsula in austral spring. Frontiers in Microbiology, 13, 844856. https://hdl.handle.net/1912/29367 doi:10.3389/fmicb.2022.844856 |
op_rights |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmicb.2022.844856 |
container_title |
Frontiers in Microbiology |
container_volume |
13 |
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1766249378502148096 |