FACTS:
Reproductive biology in black triggerfish is not well known, spawning and nest-building activities are unrecorded, and larvae are undescribed.
Back triggerfish ranged widely during the day, shelter when threatened, and returned to the same hole at night to shelter
Typically observed as a non-schooling fish in groups of 2 to 10
They are a circumtropical coral reef fish found on nearly every tropical reef system in the world
SPINE:
This species has a hard spiny dorsal fin that is usually carried flat against the fish’s body in a special groove, but which can be locked into place when necessary.
The Triggerfish uses this spine to hold itself in place when sleeping so that predators have a hard time pulling them out of hiding.
The spine is also used to warn predators away and may be used as a weapon.
VOCALIZING:
Black Triggerfish may make “put put put” sounds or growls; these noises are amplified by their swim bladder.
COLORS AND MARKINGS:
On the face and around the eyes there are thin, light blue-turquoise colored lines. Along the base of both the soft dorsal and anal fins, there are bold white lines. The body appears to be black in the wild, but once out of the water with some light on this fish, you can actually see that its body is of a dark blue to blue-green color with horizontal markings present.
