Triggerfish - Rhinecanthus aculeatus - Sonia Alvaredo
Triggerfish – Rhinecanthus aculeatus
Triggerfishes are the attractive fishes of the family Balistidae. They have the ability to lock and unlock their first dorsal spine. This finn who is strong and rigid is normally retracted and carried on a groove on the upper body and when frightened the fish will release his "trigger" on a branch or crevice of a coral to lock itself into it for protection. There about forty species around the world, the Rhinecanthus aculeatus or also known as Picasso triggerfish is one of them. He lives in sandy areas of coral reefs in the indo-pacific ocean. Rhinecanthus have compressed body and small mouths but with strong jaws. The eyes are set on top of the head moving independently to scan the coral reef for predators.