Scientific Name
Stegastes apicalis

Common Name
Australian gregory

Biology
Dorsal spines (total): 13; Dorsal soft rays (total): 15-16; Anal spines: 2; Anal soft rays: 13. Body color is generally dark brown with yellow or reddish suffusion on antero-dorsal part of head and body. The scales have blackish streaks near margin, giving an overall appearance of narrow transverse bands; a few small blue spots is scattered on head, breast and posteriorly on the sides. The spinous dorsal fin is reddish brown with orange submarginal band while outer edge of soft rays orange. A black spot is on the distal part of membrane between 2nd and 3rd dorsal spine. The tip of the upper caudal lobe is orange; the anterior edge of pelvic and anal fins is blue.

Classification

Classified By

De Vis, 1885

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Damselfishes (Pomacentridae)

Distribution

Region

Western Pacific

Distribution

Western Pacific: known only from the east coast of Australia - Great Barrier Reef, Queensland, and New South Wales. More recently reported from Taiwan (Ref. 12711) and Ouv?a Atoll, Loyalty Islands (Ref. 13236).

Range

10°S - 38°S

Environment

Climate

Subtropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

1 m

Depth To - meters

5 m

Zone

reef-associated

Environment

Marine; reef-associated; non-migratory; depth range 1 - 5 m (Ref. 9710)

Trophic Level

2.05 s.e. 0.02 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

True

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

15.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Low to moderate vulnerability (26 of 100)

Resilience

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated