From Australian Oceans Data Network
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The relative abundance (%) of planktonic foraminifera over time in core MD032607, located off the coast South Australia

Created 23/06/2025

Updated 23/06/2025

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The advent of deep-sea drilling in the 1950's prompted the use of planktonic foraminifera (unicellular protozans) as palaeoceanographic indicators. They provide a natural archive of past environmental changes due to their global distribution, their prolific productivity and sensitivity to environmental variations.The highest species abundance of foraminifera in core MD032607 was recorded by Globigerina bulloides (~45%) during the penultimate glacial period (MIS 6) and, generally, was the most abundant with an average abundance of 19.5%. The dominance of the sub-polar, transitional species, Ga. bulloides in this core suggests the influence of cold, nutrient-rich water during certain isotopic stages. Conversely, the dominant warm and oligotrophic species Globigerinoides ruber recorded its lowest abundance in Marine Isotope Stage (MIS) 6, and is totally removed from the record (0%) at 146K, 142K, and 139K yrs BP.

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Field Value
Title The relative abundance (%) of planktonic foraminifera over time in core MD032607, located off the coast South Australia
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/d780c4c0-3c95-4f9f-ba63-098bc5a0f7cd
Contact Point
Australian Ocean Data Network
michelle.spooner8@gmail.com
Reference Period 01/01/2003 - 01/01/2003
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        137.0,
        -40.0
      ],
      [
        137.5,
        -40.0
      ],
      [
        137.5,
        -39.5
      ],
      [
        137.0,
        -39.5
      ],
      [
        137.0,
        -40.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "The relative abundance (%) of planktonic foraminifera over time in core MD032607, located off the coast South Australia". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/the-relative-abundance-of-planktonic-foraminifera-over-time-in-core-md032607-located-off-the-co1