The Losey Lab Research: Using UV

Abudefduf vaigensis is a species of damselfish that we found on the Quicksilver pontoon on the Great Barrier Reef. The males of this species defend a territory and a nest during the breeding season. We found that the nesting males present a special "courtship coloration" to females in the ultraviolet region of the spectrum. The males lose the disruptive-camoflauge bars that they normally possess, but only lose them in the UV, which the females can see, but predators cannot. Research continues on this front...

These are still frames taken from video of a courting Abudefduf male at (A) 520 nm, in the green; (B) 480 nm, in the blue; and (C) 360 nm, in the UV. The dark spots between the bars in B (and a bit in C), are non-UV reflecting yellow. UV-poor light, as this nest was in the shade, resulted in poor picture quality in (C). Here's another nesting male with a bit better resolution (although he was moving pretty quickly in this shot!):

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