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Totten Glacier ocean & sediment DNA (IN2017_V01)

Created 24/06/2025

Updated 24/06/2025

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This record presents 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 is mirrored in the UTAS Research Data Portal, here: https://rdp.utas.edu.au/metadata/8628529b-49cf-42d4-9459-3c1e97f70d98)

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Additional Info

Field Value
Title Totten Glacier ocean & sediment DNA (IN2017_V01)
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/5e9f7ef7-7f1e-4c89-a2f5-13a317aa6edb
Contact Point
Australian Ocean Data Network
Linda.Armbrecht@utas.edu.au
Reference Period 01/01/2017 - 31/03/2017
Geospatial Coverage
Map data © OpenStreetMap contributors
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  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Totten Glacier ocean & sediment DNA (IN2017_V01)". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/totten-glacier-ocean-sediment-dna-in2017_v01