Fin's Fish Guide
The Pacific gregory (Stegastes fasciolatus) is a saltwater fish of the family Pomacentridae that grows up to 13 cm.
Description
The Pacific gregory is a damselfish of the family Pomacentridae from the Indo-Pacific. The species grows to about 13 cm and has a stocky, dark olive-brown body; juveniles are often brighter with blue and yellow tints. It inhabits shallow rocky and coral reefs exposed to surge. Characteristic is its behaviour as an 'algae farmer': it fiercely defends a territory with a patch of filamentous algae that it grazes and protects from intruders. As a predominantly herbivorous fish it feeds on those algae, supplemented with small invertebrates. The species is harmless to humans.
Frequently asked questions
How do you recognise the Pacific gregory?
The Pacific gregory has a torpedo-shaped body, is mainly brown and shows a plain pattern. 'Algae farmer' that fiercely defends and grazes a territory with its own patch of filamentous algae.
Where does the Pacific gregory live?
The Pacific gregory lives in the sea (marine waters) and is mostly found around stony or rocky ground. Indo-Pacific; shallow rocky and coral reefs with surf.
How big does the Pacific gregory get?
The Pacific gregory grows to a maximum of about 13 cm.
Is the Pacific gregory dangerous to humans?
No, the Pacific gregory is harmless to humans. None required: this species is harmless to humans.
Is the Pacific gregory edible?
The Pacific gregory is not usually eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Stegastes
More from the family Pomacentridae
Want the complete picture on the Pacific gregory?
Point your camera at the fish and Fin names the species in seconds. Free, and the Pacific gregory is one of 12,519 species in the app.