Data from: Microbe biogeography tracks water masses in a dynamic oceanic frontal system
PLEASE NOTE, THESE DATA ARE ALSO REFERRED TO IN ANOTHER PUBLICATION. PLEASE SEE http://dx.doi.org/10.1098/rsos.160829. Dispersal limitation, not just environmental selection, plays an important role in microbial biogeography. The distance–decay relationship is thought to be weak in habitats where di...
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Online Access: | https://doi.org/10.5061/dryad.qh767 |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::9ed80e6b0b849ff435357f283b7f29a0 2023-05-15T13:52:10+02:00 Data from: Microbe biogeography tracks water masses in a dynamic oceanic frontal system Djurhuus, Anni Boersch-Supan, Philipp H. Mikalsen, Svein-Ole Rogers, Alex D. Giebel, Helge-Ansgar 2017-01-01 https://doi.org/10.5061/dryad.qh767 en eng Dryad http://dx.doi.org/10.5061/dryad.qh767 https://dx.doi.org/10.5061/dryad.qh767 lic_creative-commons 10.5061/dryad.qh767 oai:easy.dans.knaw.nl:easy-dataset:96839 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:96839 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 re3data_____::r3d100000044 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c Hydrothermal vents Oceanic Fronts microbial ecology Life sciences medicine and health care Southwest Indian Ridge East Scotia Ridge geo envir Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2017 fttriple https://doi.org/10.5061/dryad.qh767 2023-01-22T17:22:25Z PLEASE NOTE, THESE DATA ARE ALSO REFERRED TO IN ANOTHER PUBLICATION. PLEASE SEE http://dx.doi.org/10.1098/rsos.160829. Dispersal limitation, not just environmental selection, plays an important role in microbial biogeography. The distance–decay relationship is thought to be weak in habitats where dispersal is high, such as in the pelagic environment, where ocean currents facilitate microbial dispersal. Most studies of microbial community composition to date have observed little geographical heterogeneity on a regional scale (100 km). We present a study of microbial communities across a dynamic frontal zone in the southwest Indian Ocean and investigate the spatial structure of the microbes with respect to the different water masses separated by these fronts. We collected 153 samples of free-living microorganisms from five seamounts located along a gradient from subtropical to subantarctic waters and across three depth layers: (i) the sub-surface chlorophyll maximum (approx. 40 m), (ii) the bottom of the euphotic zone (approx. 200 m), and (iii) the benthic boundary layer (300–2000 m). Diversity and abundance of microbial operational taxonomic units (OTUs) were assessed by amplification and sequencing of the 16S rRNA gene on an Illumina MiSeq platform. Multivariate analyses showed that microbial communities were structured more strongly by depth than by latitude, with similar phyla occurring within each depth stratum across seamounts. The deep layer was homogeneous across the entire survey area, corresponding to the spread of Antarctic intermediate water. However, within both the sub-surface layer and the intermediate depth stratum there was evidence for OTU turnover across fronts. The microbiome of these layers appears to be divided into three distinct biological regimes corresponding to the subantarctic surface water, the convergence zone and subtropical. We show that microbial biogeography across depth and latitudinal gradients is linked to the water masses the microbes persist in, resulting in regional patterns ... Dataset Antarc* Antarctic Unknown Antarctic Indian East Scotia Ridge ENVELOPE(-29.250,-29.250,-57.917,-57.917) |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
Hydrothermal vents Oceanic Fronts microbial ecology Life sciences medicine and health care Southwest Indian Ridge East Scotia Ridge geo envir |
spellingShingle |
Hydrothermal vents Oceanic Fronts microbial ecology Life sciences medicine and health care Southwest Indian Ridge East Scotia Ridge geo envir Djurhuus, Anni Boersch-Supan, Philipp H. Mikalsen, Svein-Ole Rogers, Alex D. Giebel, Helge-Ansgar Data from: Microbe biogeography tracks water masses in a dynamic oceanic frontal system |
topic_facet |
Hydrothermal vents Oceanic Fronts microbial ecology Life sciences medicine and health care Southwest Indian Ridge East Scotia Ridge geo envir |
description |
PLEASE NOTE, THESE DATA ARE ALSO REFERRED TO IN ANOTHER PUBLICATION. PLEASE SEE http://dx.doi.org/10.1098/rsos.160829. Dispersal limitation, not just environmental selection, plays an important role in microbial biogeography. The distance–decay relationship is thought to be weak in habitats where dispersal is high, such as in the pelagic environment, where ocean currents facilitate microbial dispersal. Most studies of microbial community composition to date have observed little geographical heterogeneity on a regional scale (100 km). We present a study of microbial communities across a dynamic frontal zone in the southwest Indian Ocean and investigate the spatial structure of the microbes with respect to the different water masses separated by these fronts. We collected 153 samples of free-living microorganisms from five seamounts located along a gradient from subtropical to subantarctic waters and across three depth layers: (i) the sub-surface chlorophyll maximum (approx. 40 m), (ii) the bottom of the euphotic zone (approx. 200 m), and (iii) the benthic boundary layer (300–2000 m). Diversity and abundance of microbial operational taxonomic units (OTUs) were assessed by amplification and sequencing of the 16S rRNA gene on an Illumina MiSeq platform. Multivariate analyses showed that microbial communities were structured more strongly by depth than by latitude, with similar phyla occurring within each depth stratum across seamounts. The deep layer was homogeneous across the entire survey area, corresponding to the spread of Antarctic intermediate water. However, within both the sub-surface layer and the intermediate depth stratum there was evidence for OTU turnover across fronts. The microbiome of these layers appears to be divided into three distinct biological regimes corresponding to the subantarctic surface water, the convergence zone and subtropical. We show that microbial biogeography across depth and latitudinal gradients is linked to the water masses the microbes persist in, resulting in regional patterns ... |
format |
Dataset |
author |
Djurhuus, Anni Boersch-Supan, Philipp H. Mikalsen, Svein-Ole Rogers, Alex D. Giebel, Helge-Ansgar |
author_facet |
Djurhuus, Anni Boersch-Supan, Philipp H. Mikalsen, Svein-Ole Rogers, Alex D. Giebel, Helge-Ansgar |
author_sort |
Djurhuus, Anni |
title |
Data from: Microbe biogeography tracks water masses in a dynamic oceanic frontal system |
title_short |
Data from: Microbe biogeography tracks water masses in a dynamic oceanic frontal system |
title_full |
Data from: Microbe biogeography tracks water masses in a dynamic oceanic frontal system |
title_fullStr |
Data from: Microbe biogeography tracks water masses in a dynamic oceanic frontal system |
title_full_unstemmed |
Data from: Microbe biogeography tracks water masses in a dynamic oceanic frontal system |
title_sort |
data from: microbe biogeography tracks water masses in a dynamic oceanic frontal system |
publisher |
Dryad |
publishDate |
2017 |
url |
https://doi.org/10.5061/dryad.qh767 |
long_lat |
ENVELOPE(-29.250,-29.250,-57.917,-57.917) |
geographic |
Antarctic Indian East Scotia Ridge |
geographic_facet |
Antarctic Indian East Scotia Ridge |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
10.5061/dryad.qh767 oai:easy.dans.knaw.nl:easy-dataset:96839 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:96839 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 re3data_____::r3d100000044 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c |
op_relation |
http://dx.doi.org/10.5061/dryad.qh767 https://dx.doi.org/10.5061/dryad.qh767 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.qh767 |
_version_ |
1766256431037677568 |