From Australian Oceans Data Network
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Rapid 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 quantitatively examine the rapid colour changes associated with the fiddler crab, Uca capricornis. Experiments were conducted in the East Point Reserve, Darwin from Nov - Jan (04/05 and 05/06). 65 randomly selected crabs were caught (21 males and 44 females) and their ability to change colour over a 20 minute period was assessed using a portable spectrophotometer. The results indicate that when caught, or otherwise stressed, U. capricornis are capable of rapidly changing their colour, with short term colour changes more likely in females. In all cases the pattern remained unchanged, but did become more difficult to distinguish as the colours darkened.

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Additional Info

Field Value
Title Rapid colour changes associated with the fiddler crab, Uca capricornis
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/4c0c7017-86e3-47d5-bc38-d5015b66a2b1
Contact Point
Australian Ocean Data Network
Tanya.Detto@hotmail.com
Reference Period 01/11/2004 - 01/01/2005
Geospatial Coverage
Map data © OpenStreetMap contributors
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  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Rapid 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/rapid-colour-changes-associated-with-the-fiddler-crab-uca-capricornis1