From Australian Oceans Data Network
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Daily colour changes associated with the fiddler crab, Uca capricornis

Created 23/06/2025

Updated 23/06/2025

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The purpose of this experiment was to examine the daily colour changes in relation to the tidal cycle in the fiddler crab, Uca capricornis. Experiments were conducted in the East Point Reserve, Darwin from Nov - Jan (04/05 & 05/06). Twenty-seven crabs (13 males, 14 females) were observed on the day after spring tide over several semilunar cycles. Digital photos of the crabs were taken before, during and after low tide. These photographs were examined for any changes in colour or pattern. Uca capricornis do not regularly change their colouration over the course of the day. Of the 27 individuals observed, 24 did not noticeably change their colour, and none altered their pattern.

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Additional Info

Field Value
Title Daily colour changes associated with the fiddler crab, Uca capricornis
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/2d861de8-28d0-4e9c-a32f-232894e296d8
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 "Daily colour changes associated with 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/daily-colour-changes-associated-with-the-fiddler-crab-uca-capricornis1