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IMOS - AusCPR: Phytoplankton Colour Index (PCI)

Created 26/03/2026

Updated 26/03/2026

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Phytoplankton Colour Index (PCI)

After the silk has been marked into 5 nautical mile samples but prior to cutting, each sample is visually assigned a greenness index by comparison with standard colour charts: viz. no colour, very pale green, pale green, and green. These four levels of the phytoplankton colour index (PCI) represent the amount of phytoplankton pigment on the silk and have been assigned numerical values on a ratio scale based on acetone extracts using spectrophotometric methods.

Results from the AusCPR survey are available through the AODN portal: https://portal.aodn.org.au This data is freely available but please acknowledgment all relevant parties, as detailed in acknowledgement section.

Files and APIs

Additional Info

Field Value
Title IMOS - AusCPR: Phytoplankton Colour Index (PCI)
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/dd0f5ca4-2688-4669-bbe4-18489c9a38d4
Contact Point
CSIRO Marlin Data Catalogue
Claire.Davies@csiro.au
Reference Period 01/06/2009
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        105.0,
        -65.0
      ],
      [
        175.0,
        -65.0
      ],
      [
        175.0,
        -10.0
      ],
      [
        105.0,
        -10.0
      ],
      [
        105.0,
        -65.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Data.gov.au