Sunday, September 9, 2012

Kole--Goldring or Yellow Eyed Surgeonfish

 Saw these beautiful fish at Captain Cook



This dark colored surgeonfish is distinguishable by its fine, horizontal striping, yellow eye-ring and blue lips. It is endemic (that is unique) to the Hawaiian Islands and Johnston Atoll. 

Goldring are diurnal herbivores that browse on filamentous seaweeds and diatoms covering the seafloor. Their mouths have bristle-like teeth giving rise to one of their groups’ common names––“bristletooths”

Goldring bristletooths are one of the two most common species seen at turtle cleaning stations where they browse on the algae and diatoms coating the turtle’s carapace. Goldrings appear to prefer the algae growing on the hard parts of turtle’s bodies, while closely associated yellow tang prefer algae from the soft parts. The behavior of these respective species is indicative of one way that closely related species specialize, thereby avoiding competition for similar resources.

Interestingly, while browsing on turtles, Goldring bristletooths will tolerate the presence of divers much closer than while feeding in schools or on their own. 





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