Deep-Sea Nematodes Actively Colonise Sediments, Irrespective of the Presence of a Pulse of Organic Matter: Results from an In-Situ Experiment
A colonisation experiment was performed in situ at 2500 m water depth at the Arctic deep-sea long-term observatory HAUSGARTEN to determine the response of deep-sea nematodes to disturbed, newly available patches, enriched with organic matter. Cylindrical tubes,laterally covered with a 500 µm mesh, w...
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ftpubmed:oai:pubmedcentral.nih.gov:3079745 2023-05-15T15:07:56+02:00 Deep-Sea Nematodes Actively Colonise Sediments, Irrespective of the Presence of a Pulse of Organic Matter: Results from an In-Situ Experiment Guilini, Katja Soltwedel, Thomas van Oevelen, Dick Vanreusel, Ann 2011-04-19 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3079745 http://www.ncbi.nlm.nih.gov/pubmed/21526147 https://doi.org/10.1371/journal.pone.0018912 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3079745 http://www.ncbi.nlm.nih.gov/pubmed/21526147 http://dx.doi.org/10.1371/journal.pone.0018912 Guilini et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY Research Article Text 2011 ftpubmed https://doi.org/10.1371/journal.pone.0018912 2013-09-03T13:38:55Z A colonisation experiment was performed in situ at 2500 m water depth at the Arctic deep-sea long-term observatory HAUSGARTEN to determine the response of deep-sea nematodes to disturbed, newly available patches, enriched with organic matter. Cylindrical tubes,laterally covered with a 500 µm mesh, were filled with azoic deep-sea sediment and 13C-labelled food sources (diatoms and bacteria). After 10 days of incubation the tubes were analysed for nematode response in terms of colonisation and uptake. Nematodes actively colonised the tubes,however with densities that only accounted for a maximum of 2.13% (51 ind.10 cm−2) of the ambient nematode assemblages. Densities did not differ according to the presence or absence of organic matter, nor according to the type of organic matter added. The fact that the organic matter did not function as an attractant to nematodes was confirmed by the absence of notable 13C assimilation by the colonising nematodes. Overall, colonisationappears to be a process that yields reproducible abundance and diversity patterns, with certain taxa showing more efficiency. Together with the high variability between the colonising nematode assemblages, this lends experimental support to the existence of a spatio-temporal mosaic that emerges from highly localised, partially stochastic community dynamics. Text Arctic PubMed Central (PMC) Arctic PLoS ONE 6 4 e18912 |
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Research Article Guilini, Katja Soltwedel, Thomas van Oevelen, Dick Vanreusel, Ann Deep-Sea Nematodes Actively Colonise Sediments, Irrespective of the Presence of a Pulse of Organic Matter: Results from an In-Situ Experiment |
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Research Article |
description |
A colonisation experiment was performed in situ at 2500 m water depth at the Arctic deep-sea long-term observatory HAUSGARTEN to determine the response of deep-sea nematodes to disturbed, newly available patches, enriched with organic matter. Cylindrical tubes,laterally covered with a 500 µm mesh, were filled with azoic deep-sea sediment and 13C-labelled food sources (diatoms and bacteria). After 10 days of incubation the tubes were analysed for nematode response in terms of colonisation and uptake. Nematodes actively colonised the tubes,however with densities that only accounted for a maximum of 2.13% (51 ind.10 cm−2) of the ambient nematode assemblages. Densities did not differ according to the presence or absence of organic matter, nor according to the type of organic matter added. The fact that the organic matter did not function as an attractant to nematodes was confirmed by the absence of notable 13C assimilation by the colonising nematodes. Overall, colonisationappears to be a process that yields reproducible abundance and diversity patterns, with certain taxa showing more efficiency. Together with the high variability between the colonising nematode assemblages, this lends experimental support to the existence of a spatio-temporal mosaic that emerges from highly localised, partially stochastic community dynamics. |
format |
Text |
author |
Guilini, Katja Soltwedel, Thomas van Oevelen, Dick Vanreusel, Ann |
author_facet |
Guilini, Katja Soltwedel, Thomas van Oevelen, Dick Vanreusel, Ann |
author_sort |
Guilini, Katja |
title |
Deep-Sea Nematodes Actively Colonise Sediments, Irrespective of the Presence of a Pulse of Organic Matter: Results from an In-Situ Experiment |
title_short |
Deep-Sea Nematodes Actively Colonise Sediments, Irrespective of the Presence of a Pulse of Organic Matter: Results from an In-Situ Experiment |
title_full |
Deep-Sea Nematodes Actively Colonise Sediments, Irrespective of the Presence of a Pulse of Organic Matter: Results from an In-Situ Experiment |
title_fullStr |
Deep-Sea Nematodes Actively Colonise Sediments, Irrespective of the Presence of a Pulse of Organic Matter: Results from an In-Situ Experiment |
title_full_unstemmed |
Deep-Sea Nematodes Actively Colonise Sediments, Irrespective of the Presence of a Pulse of Organic Matter: Results from an In-Situ Experiment |
title_sort |
deep-sea nematodes actively colonise sediments, irrespective of the presence of a pulse of organic matter: results from an in-situ experiment |
publisher |
Public Library of Science |
publishDate |
2011 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3079745 http://www.ncbi.nlm.nih.gov/pubmed/21526147 https://doi.org/10.1371/journal.pone.0018912 |
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Arctic |
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Arctic |
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Arctic |
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Arctic |
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3079745 http://www.ncbi.nlm.nih.gov/pubmed/21526147 http://dx.doi.org/10.1371/journal.pone.0018912 |
op_rights |
Guilini et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0018912 |
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PLoS ONE |
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4 |
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e18912 |
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