Wanted: Images showing rapid colour change in goatfishes

For a study of the taxonomy of goatfishes, Franz Uiblein, a fish taxonomist from Norway, is looking for images that document colour changes in the Bluestriped Goatfish, Upeneichthys lineatus.

This may be by subsequent photographs (or video footage) taken of the same individual fish in situ, or from captive fish in aquaria. Franz is especially interested in images that show quick colour change of the tail-fin of individual fish, as this has been rarely documented, but may occur rather frequently.

Goatfishes are among those fish groups able to change colour considerably and this has puzzled many taxonomists. The amount of colour change is a very important (but perhaps underestimated) consideration in species identification.

Please upload as many of your goatfish images as you can to help Franz and his collaborators document colour change in goatfishes properly!