Nematodes community composition and environmental parameters, Eastern Antarctic Peninsula
This study provides a snapshot of the largely understudied meiobenthic and nematode communities in the Prince Gustav Channel and Duse Bay. We compared five stations sampled at different water depths along the shelf and investigated their meiobenthic community structure. We approached nematode biodiv...
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ftzenodo:oai:zenodo.org:5521021 2024-09-15T17:41:31+00:00 Nematodes community composition and environmental parameters, Eastern Antarctic Peninsula Panto, Gabriella Pasotti, Francesca Macheriotou, Lara Vanreusel, Ann 2021-09-22 https://doi.org/10.5281/zenodo.5521021 unknown Zenodo https://doi.org/10.3389/fmars.2021.629706 https://doi.org/10.5061/dryad.n8pk0p2tr https://zenodo.org/communities/dryad https://doi.org/10.5281/zenodo.5521020 https://doi.org/10.5281/zenodo.5521021 oai:zenodo.org:5521021 info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode info:eu-repo/semantics/other 2021 ftzenodo https://doi.org/10.5281/zenodo.552102110.3389/fmars.2021.62970610.5061/dryad.n8pk0p2tr10.5281/zenodo.5521020 2024-07-26T09:02:17Z This study provides a snapshot of the largely understudied meiobenthic and nematode communities in the Prince Gustav Channel and Duse Bay. We compared five stations sampled at different water depths along the shelf and investigated their meiobenthic community structure. We approached nematode biodiversity comparing traditional taxonomic identification and high throughput sequencing (HTS), with the use of Amplicon Sequence Variants (ASVs). Additionally, we characterized the environment by primary production proxies, grain size and seasonal ice conditions. Our results suggest that the availability of organic matter and its freshness are responsible for the high densities found at all depths. However, potential factors influencing the high local and regional variability of meiofauna density and biodiversity are less clear. A bathymetric transect consisting of three stations in Duse Bay (200 m, 500 m and 1000 m depth) showed increasing pigment concentrations in the first centimeters of the sediment vertical profile with increasing water depth, whereas the meiofauna densities showed the opposite trend. The deepest station of Duse Bay seems to function as a sink for fine material as supported by the higher silt fraction and higher organic matter concentrations. When comparing the two basins in the Prince Gustav Channel (1000 m and 1250 m) and the one in Duse Bay (1000 m), differences in terms of environmental variables, meiofaunal densities and composition were observed. The deepest basin in Prince Gustav Channel is located further South (closer to the highly unstable Larsen area), and marked differences with the other basins suggest that it might be experiencing different conditions as a result of its presence near the summer ice margin and its more elongated topography. Both, the shallowest and the deepest stations showed the highest number of unique sequences, suggesting a more biodiverse nematode assemblage. The morphological identification did not show significant differences in the biodiversity of all stations ... Other/Unknown Material Antarc* Antarctic Antarctic Peninsula Zenodo |
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This study provides a snapshot of the largely understudied meiobenthic and nematode communities in the Prince Gustav Channel and Duse Bay. We compared five stations sampled at different water depths along the shelf and investigated their meiobenthic community structure. We approached nematode biodiversity comparing traditional taxonomic identification and high throughput sequencing (HTS), with the use of Amplicon Sequence Variants (ASVs). Additionally, we characterized the environment by primary production proxies, grain size and seasonal ice conditions. Our results suggest that the availability of organic matter and its freshness are responsible for the high densities found at all depths. However, potential factors influencing the high local and regional variability of meiofauna density and biodiversity are less clear. A bathymetric transect consisting of three stations in Duse Bay (200 m, 500 m and 1000 m depth) showed increasing pigment concentrations in the first centimeters of the sediment vertical profile with increasing water depth, whereas the meiofauna densities showed the opposite trend. The deepest station of Duse Bay seems to function as a sink for fine material as supported by the higher silt fraction and higher organic matter concentrations. When comparing the two basins in the Prince Gustav Channel (1000 m and 1250 m) and the one in Duse Bay (1000 m), differences in terms of environmental variables, meiofaunal densities and composition were observed. The deepest basin in Prince Gustav Channel is located further South (closer to the highly unstable Larsen area), and marked differences with the other basins suggest that it might be experiencing different conditions as a result of its presence near the summer ice margin and its more elongated topography. Both, the shallowest and the deepest stations showed the highest number of unique sequences, suggesting a more biodiverse nematode assemblage. The morphological identification did not show significant differences in the biodiversity of all stations ... |
format |
Other/Unknown Material |
author |
Panto, Gabriella Pasotti, Francesca Macheriotou, Lara Vanreusel, Ann |
spellingShingle |
Panto, Gabriella Pasotti, Francesca Macheriotou, Lara Vanreusel, Ann Nematodes community composition and environmental parameters, Eastern Antarctic Peninsula |
author_facet |
Panto, Gabriella Pasotti, Francesca Macheriotou, Lara Vanreusel, Ann |
author_sort |
Panto, Gabriella |
title |
Nematodes community composition and environmental parameters, Eastern Antarctic Peninsula |
title_short |
Nematodes community composition and environmental parameters, Eastern Antarctic Peninsula |
title_full |
Nematodes community composition and environmental parameters, Eastern Antarctic Peninsula |
title_fullStr |
Nematodes community composition and environmental parameters, Eastern Antarctic Peninsula |
title_full_unstemmed |
Nematodes community composition and environmental parameters, Eastern Antarctic Peninsula |
title_sort |
nematodes community composition and environmental parameters, eastern antarctic peninsula |
publisher |
Zenodo |
publishDate |
2021 |
url |
https://doi.org/10.5281/zenodo.5521021 |
genre |
Antarc* Antarctic Antarctic Peninsula |
genre_facet |
Antarc* Antarctic Antarctic Peninsula |
op_relation |
https://doi.org/10.3389/fmars.2021.629706 https://doi.org/10.5061/dryad.n8pk0p2tr https://zenodo.org/communities/dryad https://doi.org/10.5281/zenodo.5521020 https://doi.org/10.5281/zenodo.5521021 oai:zenodo.org:5521021 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.552102110.3389/fmars.2021.62970610.5061/dryad.n8pk0p2tr10.5281/zenodo.5521020 |
_version_ |
1810487721046573056 |