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Blue Tang Video Stock Footage

Although the body of the reef fish can vary in shade from light to dark blue, the dorsal, anal and caudal fins are golden blue. As juveniles, the edges on their dorsal and anal fins and the rings around their eyes are purple-blue, blue or blue-green. Their colors change during growth from a yellow juvenile, yellow tailed blue subadult and the blue adult phase. Acanthurus coeruleus exhibits biofluorescence, that is, when illuminated by blue or ultraviolet light, it re-emits it as green, and appears differently than under white light illumination (see image to the right). Biofluorescence may assist in intraspecific communication and camouflage. Learn more about Blue Tang

View related species in family group: Tang

Animalia: Chordata: Perciformes: Actinopterygii: Acanthuridae: Acanthurus coeruleus

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