From Australian Oceans Data Network
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Colour changes associated with moulting in the fiddler crab, Uca capricornis

Created 23/06/2025

Updated 23/06/2025

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The purpose of the experiment was to quantitatively examine the colour changes associated with moulting in the fiddler crab, Uca capricornis. Experiments were conducted in the East Point Reserve, Darwin between Nov - Jan (04/05 & 05/06). Circular cages were constructed on the mud flat and characteristically marked crabs were introduced. In total 11 females and 10 males were photographed through at least one moult. On average, U. capricornis grow 1.6mm with every moult. With every successive moult the carapace pattern contracts and becomes more distinct, especially in males. In addition to the considerable variation in pattern, both sexes also vary in the specific colour of their spots. Colour changes are associated with moulting and, as with pattern, tend to follow a certain progression.

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Additional Info

Field Value
Title Colour changes associated with moulting in the fiddler crab, Uca capricornis
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/78fc14a0-a609-4631-8312-cfb351e9728d
Contact Point
Australian Ocean Data Network
Tanya.Detto@hotmail.com
Reference Period 01/11/2004 - 01/01/2005
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        130.5,
        -13.0
      ],
      [
        131.0,
        -13.0
      ],
      [
        131.0,
        -12.0
      ],
      [
        130.5,
        -12.0
      ],
      [
        130.5,
        -13.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Colour changes associated with moulting in the fiddler crab, Uca capricornis". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/colour-changes-associated-with-moulting-in-the-fiddler-crab-uca-capricornis1