From Australian Oceans Data Network
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The relative abundance (%) of planktonic foraminifera over time in core MD 002361, located on the shelf edge, offshore Western 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 most abundant species within core MD002361 is the subtropical species Gs. ruber. High abundances =30% are seen during the interglacial periods Marine Isotope Stages (MIS) 11, 9, 7, 5 with peak abundance (37.7%) during the Holocene. Other tropical and subtropical species follow this pattern. The transitional, deep dwelling species Gr. inflata has the most distinct abundance change within core MD002361. This species is absent during the interglacial periods but achieves high relative abundances (~20-30%) during glacial periods.

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Additional Info

Field Value
Title The relative abundance (%) of planktonic foraminifera over time in core MD 002361, located on the shelf edge, offshore Western Australia
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/26c1a087-1eb5-4a65-8d2e-484e108d5cd6
Contact Point
Australian Ocean Data Network
michelle.spooner8@gmail.com
Reference Period 01/01/2000 - 01/01/2000
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        113.0,
        -22.5
      ],
      [
        113.5,
        -22.5
      ],
      [
        113.5,
        -22.0
      ],
      [
        113.0,
        -22.0
      ],
      [
        113.0,
        -22.5
      ]
    ]
  ],
  "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 MD 002361, located on the shelf edge, offshore Western 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-md-002361-located-on-the-sh1