The majority of coral reef fishes have a complex life cycle with a oceanic and pelagic larval phase followed by sedentary récifal phase for the youthful ones and the adults. In the hours or the days which follow the colonization of the reef, the larvae metamorphose themselves into juvenile which will become adults adapted to their ecological niche. This adaptation is often accompanied by changes in the way of life and the structures which ensure the realization of it. The study seeks to establish during the development the relations between these changes. It will be based primarily on the principles and the methods of functional morphology, ecomorphology, systematic and geometrical morphometry.
