Data

Revision of Totten Glacier ocean & sediment DNA (IN2017_V01)

University of Tasmania, Australia
Linda Armbrecht ; Amaranta Focardi
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://data.utas.edu.au/metadata/8628529b-49cf-42d4-9459-3c1e97f70d98&rft.title=Revision of Totten Glacier ocean & sediment DNA (IN2017_V01)&rft.identifier=https://data.utas.edu.au/metadata/8628529b-49cf-42d4-9459-3c1e97f70d98&rft.publisher=University of Tasmania, Australia&rft.description=Genetic data underlying the paper 'From the Surface Ocean to the Seafloor: Linking Modern and Paleo-genetics at the Sabrina Coast, East Antarctica (IN2017_V01)' by Armbrecht et al. In this study, we provide the first taxonomic overview of the modern and ancient marine bacterial and eukaryotic communities of the Totten Glacier region, East Antarctica, using a combination of 16S and 18S rRNA amplicon sequencing (modern DNA) and shotgun metagenomic (sedimentary ancient DNA, sedaDNA) analyses, respectively. We explore environmental and geochemical variables that drive these biodiversity patterns. Our data show considerable differences between eukaryote and bacterial signals detected via DNA analyses in the water column vs. the sediments. Organisms that are well represented in deeper waters appear are to have a higher likelihood of becoming preserved in the sediments. The study provides the first assessment of DNA transfer from ocean waters to sediments, while also providing a broad overview of the biological communities occurring in the climatically important Totten Glacier region. (Please note that this record supersedes the metadata and the data files from the version, here: https://dx.doi.org/10.25959/hwk8-cc81.)&rft.creator=Linda Armbrecht &rft.creator=Amaranta Focardi &rft.date=2023&rft_rights=Attribution - NonCommercial(BY - NC) http://creativecommons.org/licenses/by-nc/4.0/&rft_subject=Palaeoecology&rft_subject=Ecology&rft_subject=BIOLOGICAL SCIENCES&rft_subject=Biological oceanography&rft_subject=Oceanography&rft_subject=EARTH SCIENCES&rft_subject=Ecological impacts of climate change and ecological adaptation&rft_subject=Climate change impacts and adaptation&rft_subject=ENVIRONMENTAL SCIENCES&rft_subject=Biodiversity in Antarctic and Southern Ocean environments&rft_subject=Management of Antarctic and Southern Ocean environments&rft_subject=ENVIRONMENTAL MANAGEMENT&rft_subject=Ecosystem adaptation to climate change&rft_subject=Adaptation to climate change&rft_subject=ENVIRONMENTAL POLICY, CLIMATE CHANGE AND NATURAL HAZARDS&rft_subject=Totten Glacier&rft_subject=Sabrina Coast&rft_subject=ancient DNA&rft_subject=modern DNA&rft_subject=marine&rft_subject=Antarctica&rft_subject=Southern Ocean&rft_subject=diatoms&rft_subject=radiolarians&rft_subject=bacteria&rft.type=dataset&rft.language=English Access the data
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Genetic data underlying the paper 'From the Surface Ocean to the Seafloor: Linking Modern and Paleo-genetics at the Sabrina Coast, East Antarctica (IN2017_V01)' by Armbrecht et al. In this study, we provide the first taxonomic overview of the modern and ancient marine bacterial and eukaryotic communities of the Totten Glacier region, East Antarctica, using a combination of 16S and 18S rRNA amplicon sequencing (modern DNA) and shotgun metagenomic (sedimentary ancient DNA, sedaDNA) analyses, respectively. We explore environmental and geochemical variables that drive these biodiversity patterns. Our data show considerable differences between eukaryote and bacterial signals detected via DNA analyses in the water column vs. the sediments. Organisms that are well represented in deeper waters appear are to have a higher likelihood of becoming preserved in the sediments. The study provides the first assessment of DNA transfer from ocean waters to sediments, while also providing a broad overview of the biological communities occurring in the climatically important Totten Glacier region.

(Please note that this record supersedes the metadata and the data files from the version, here: https://dx.doi.org/10.25959/hwk8-cc81.)

Data time period: 2017-01 to 2017-03

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Adaptation to Climate Change | Antarctica | Biological Sciences | Biodiversity in Antarctic and Southern Ocean Environments | Biological Oceanography | Climate Change Impacts and Adaptation | Earth Sciences | Environmental Management | Environmental Policy, Climate Change and Natural Hazards | Environmental Sciences | Ecological Impacts of Climate Change and Ecological Adaptation | Ecology | Ecosystem Adaptation to Climate Change | Management of Antarctic and Southern Ocean Environments | Oceanography | Palaeoecology | Sabrina Coast | Southern Ocean | Totten Glacier | ancient DNA | bacteria | diatoms | marine | modern DNA | radiolarians |

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