Changes in nematode communities in different physiographic sites of the Condor Seamount (North-East Atlantic Ocean) and adjacent sediments
Several seamounts are known as ‘oases’ of high abundances and biomass and hotspots of biodiversity in contrast to the surrounding deep-sea environments. Recent studies have indicated that each single seamount can exhibit a high intricate habitat turnover. Information on alpha and beta diversity of s...
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ftvliz:oai:oma.vliz.be:244022 2023-05-15T17:38:23+02:00 Changes in nematode communities in different physiographic sites of the Condor Seamount (North-East Atlantic Ocean) and adjacent sediments Zeppilli, D. Bongiorni, L. Serrão Santos, R. Vanreusel, A. 2014 application/pdf https://www.vliz.be/imisdocs/publications/267655.pdf en eng info:eu-repo/semantics/altIdentifier/wos/000347239900056 info:eu-repo/semantics/altIdentifier/doi/oi.org/10.1371/journal.pone.0115601 https://www.vliz.be/imisdocs/publications/267655.pdf info:eu-repo/semantics/openAccess %3Ci%3EPLoS+One+9%2812%29%3C%2Fi%3E%3A+e115601.+%3Ca+href%3D%22http%3A%2F%2Fdx.doi.org%2F10.1371%2Fjournal.pone.0115601%22+target%3D%22_blank%22%3Ehttp%3A%2F%2Fdx.doi.org%2F10.1371%2Fjournal.pone.0115601%3C%2Fa%3E Ecosystems Habitat Seamounts Species diversity Nematoda [Nematodes] info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2014 ftvliz https://doi.org/10.1371/journal.pone.0115601 2022-05-01T10:22:45Z Several seamounts are known as ‘oases’ of high abundances and biomass and hotspots of biodiversity in contrast to the surrounding deep-sea environments. Recent studies have indicated that each single seamount can exhibit a high intricate habitat turnover. Information on alpha and beta diversity of single seamount is needed in order to fully understand seamounts contribution to regional and global biodiversity. However, while most of the seamount research has been focused on summits, studies considering the whole seamount structure are still rather poor. In the present study we analysed abundance, biomass and diversity of nematodes collected in distinct physiographic sites and surrounding sediments of the Condor Seamount (Azores, North-East Atlantic Ocean). Our study revealed higher nematode biomass in the seamount bases and values 10 times higher in the Condor sediments than in the far-field site. Although biodiversity indices did not showed significant differences comparing seamount sites and far-field sites, significant differences were observed in term of nematode composition. The Condor summit harboured a completely different nematode community when compared to the other seamount sites, with a high number of exclusive species and important differences in term of nematode trophic diversity. The oceanographic conditions observed around the Condor Seamount and the associated sediment mixing, together with the high quality of food resources available in seamount base could explain the observed patterns. Our results support the hypothesis that seamounts maintain high biodiversity through heightened beta diversity and showed that not only summits but also seamount bases can support rich benthic community in terms of standing stocks and diversity. Furthermore functional diversity of nematodes strongly depends on environmental conditions link to the local setting and seamount structure. This finding should be considered in future studies on seamounts, especially in view of the potential impacts due to current and future anthropogenic threats. Article in Journal/Newspaper North East Atlantic Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) PLoS ONE 9 12 e115601 |
institution |
Open Polar |
collection |
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
op_collection_id |
ftvliz |
language |
English |
topic |
Ecosystems Habitat Seamounts Species diversity Nematoda [Nematodes] |
spellingShingle |
Ecosystems Habitat Seamounts Species diversity Nematoda [Nematodes] Zeppilli, D. Bongiorni, L. Serrão Santos, R. Vanreusel, A. Changes in nematode communities in different physiographic sites of the Condor Seamount (North-East Atlantic Ocean) and adjacent sediments |
topic_facet |
Ecosystems Habitat Seamounts Species diversity Nematoda [Nematodes] |
description |
Several seamounts are known as ‘oases’ of high abundances and biomass and hotspots of biodiversity in contrast to the surrounding deep-sea environments. Recent studies have indicated that each single seamount can exhibit a high intricate habitat turnover. Information on alpha and beta diversity of single seamount is needed in order to fully understand seamounts contribution to regional and global biodiversity. However, while most of the seamount research has been focused on summits, studies considering the whole seamount structure are still rather poor. In the present study we analysed abundance, biomass and diversity of nematodes collected in distinct physiographic sites and surrounding sediments of the Condor Seamount (Azores, North-East Atlantic Ocean). Our study revealed higher nematode biomass in the seamount bases and values 10 times higher in the Condor sediments than in the far-field site. Although biodiversity indices did not showed significant differences comparing seamount sites and far-field sites, significant differences were observed in term of nematode composition. The Condor summit harboured a completely different nematode community when compared to the other seamount sites, with a high number of exclusive species and important differences in term of nematode trophic diversity. The oceanographic conditions observed around the Condor Seamount and the associated sediment mixing, together with the high quality of food resources available in seamount base could explain the observed patterns. Our results support the hypothesis that seamounts maintain high biodiversity through heightened beta diversity and showed that not only summits but also seamount bases can support rich benthic community in terms of standing stocks and diversity. Furthermore functional diversity of nematodes strongly depends on environmental conditions link to the local setting and seamount structure. This finding should be considered in future studies on seamounts, especially in view of the potential impacts due to current and future anthropogenic threats. |
format |
Article in Journal/Newspaper |
author |
Zeppilli, D. Bongiorni, L. Serrão Santos, R. Vanreusel, A. |
author_facet |
Zeppilli, D. Bongiorni, L. Serrão Santos, R. Vanreusel, A. |
author_sort |
Zeppilli, D. |
title |
Changes in nematode communities in different physiographic sites of the Condor Seamount (North-East Atlantic Ocean) and adjacent sediments |
title_short |
Changes in nematode communities in different physiographic sites of the Condor Seamount (North-East Atlantic Ocean) and adjacent sediments |
title_full |
Changes in nematode communities in different physiographic sites of the Condor Seamount (North-East Atlantic Ocean) and adjacent sediments |
title_fullStr |
Changes in nematode communities in different physiographic sites of the Condor Seamount (North-East Atlantic Ocean) and adjacent sediments |
title_full_unstemmed |
Changes in nematode communities in different physiographic sites of the Condor Seamount (North-East Atlantic Ocean) and adjacent sediments |
title_sort |
changes in nematode communities in different physiographic sites of the condor seamount (north-east atlantic ocean) and adjacent sediments |
publishDate |
2014 |
url |
https://www.vliz.be/imisdocs/publications/267655.pdf |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_source |
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op_relation |
info:eu-repo/semantics/altIdentifier/wos/000347239900056 info:eu-repo/semantics/altIdentifier/doi/oi.org/10.1371/journal.pone.0115601 https://www.vliz.be/imisdocs/publications/267655.pdf |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1371/journal.pone.0115601 |
container_title |
PLoS ONE |
container_volume |
9 |
container_issue |
12 |
container_start_page |
e115601 |
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