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

Institute for Marine and Antarctic Studies (IMAS)
Private Bag 129
Hobart
Tasmania
7001
Australia

Custodian

Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - Werkman, Harko
IMAS - Hobart
Private Bag 129
Hobart
Tasmania
7001
Australia
ORCID ID >

Status
Completed

Principal investigator

Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - Armbrecht, Linda
Private Bag 129
Hobart
Tasmania
7001
Australia
ORCID ID >

Owner

University of Technology Sydney - Focardi, Amaranta
ORCID ID >

Topic category
  • Biota

Extent

N
S
E
W


Temporal extent

Time period
2017-01-01 2017-03-31
Maintenance and update frequency
Not planned
Keywords (Theme)
  • 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
Australian and New Zealand Standard Research Classification (ANZSRC): Fields of Research
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)

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

IMAS Data Manager - Data Officer
Institute for Marine and Antarctic Studies
Private Bag 129
Hobart
Tasmania
7001
Australia
Institute for Marine and Antarctic Studies (IMAS) website >

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
 
 

Overviews

Spatial extent

N
S
E
W


Keywords

310306 Palaeoecology 370801 Biological oceanography 410102 Ecological impacts of climate change and ecological adaptation Antarctica Sabrina Coast Southern Ocean Totten Glacier ancient DNA bacteria diatoms marine modern DNA radiolarians
Australian and New Zealand Standard Research Classification (ANZSRC): Fields of Research
Biological Oceanography Ecological Impacts of Climate Change Palaeoecology
Global Change Master Directory Earth Science Keywords, Version 8.5
EARTH SCIENCE | BIOLOGICAL CLASSIFICATION | BACTERIA/ARCHAEA EARTH SCIENCE | BIOSPHERE | ECOLOGICAL DYNAMICS | COMMUNITY DYNAMICS EARTH SCIENCE | CLIMATE INDICATORS | PALEOCLIMATE INDICATORS | BIOLOGICAL RECORDS EARTH SCIENCE | PALEOCLIMATE | OCEAN/LAKE RECORDS | SEDIMENTS

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