Totten Glacier ocean & sediment DNA (IN2017_V01)
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)
Simple
Identification info
- Date (Publication)
- 2023-03-29T00:00:00
Resource provider
Custodian
- Status
- Completed
Principal investigator
- Topic category
-
- Biota
Extent
Temporal extent
- Time period
- 2017-01-01 2017-03-31
- Maintenance and update frequency
- Not planned
- Keywords (Theme)
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- Antarctica
- Southern Ocean
- Totten Glacier
- Sabrina Coast
- ancient DNA
- modern DNA
- marine
- diatoms
- radiolarians
- bacteria
- 310306 Palaeoecology
- 370801 Biological oceanography
- 410102 Ecological impacts of climate change and ecological adaptation
- Global Change Master Directory Earth Science Keywords, Version 8.5
Resource constraints
- Use limitation
- Data, products and services from IMAS are provided "as is" without any warranty as to fitness for a particular purpose.
- Use limitation
- The data described in this record are the intellectual property of the University of Tasmania through the Institute for Marine and Antarctic Studies.
Resource constraints
- Other constraints
- This dataset is the intellectual property of the University of Tasmania (UTAS) through the Institute for Marine and Antarctic Studies (IMAS).
Resource constraints
- Linkage
-
https://licensebuttons.net/l/by-nc/4.0/88x31.png
License Graphic
- Title
- Creative Commons Attribution-NonCommercial 4.0 International License
- Alternate title
- CC-BY-NC
- Edition
- 4.0
- Website
-
https://creativecommons.org/licenses/by-nc/4.0/
License Text
- Other constraints
- The citation in a list of references is: "Citation author name/s (year metadata published), metadata title. Citation author organisation/s. File identifier and Data accessed at (add http link)."
- Language
- English
- Character encoding
- UTF8
Content Information
- Content type
- Physical measurement
Distribution Information
- Distribution format
-
-
.CSV, .RMD, .RMA6 (Megan), .7z (zip)
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.CSV, .RMD, .RMA6 (Megan), .7z (zip)
Resource lineage
- Statement
- We extracted and analysed modern (water column) and ancient (sediments) marine bacterial and eukaryotic DNA of the Totten Glacier region. A combination of 16S and 18S rRNA amplicon sequencing (modern DNA) and shotgun metagenomics (sedimentary ancient DNA, sedaDNA) was used. We explore environmental and geochemical variables driving biodiversity patterns of bacteria and eukaryotes.
- Hierarchy level
- Dataset
- Hierarchy level
- Dataset
Metadata
- Metadata identifier
-
urn:uuid/0187071a-a121-4402-96ea-64930b38bd66
- Language
- English
- Character encoding
- UTF8
Distributor
Type of resource
- Resource scope
- Dataset
- Name
- IMAS Dataset level record
- Metadata linkage
-
https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/0187071a-a121-4402-96ea-64930b38bd66
Point of truth URL of this metadata record
- Date info (Creation)
- 2023-01-23T00:00:00
- Date info (Revision)
- 2023-10-30T11:47:06
Metadata standard
- Title
- ISO 19115-3:2018