Scientific Name
Stegastes gascoynei

Common Name
Coral sea gregory

Biology
Dorsal spines (total): 14; Dorsal soft rays (total): 14-16; Anal spines: 2; Anal soft rays: 13 - 14. Body and head color primarily brown, yellow-orange on ventral portion. A blue streak runs from the snout to the suborbital. Blue or purplish spots are on opercular series. Each scale with dark brown streak near its margin, appearing as series of narrow transverse bands. The dorsal is fin brown, posteriormost is somewhat translucent. The caudal fin is tan to brown, outermost part translucent to yellowish. The anal and pelvic fins yellow to orange. The pectorals are transparent with suffusion of yellow with a small dark spot superiorly at its base.

Classification

Classified By

Whitley, 1964

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Damselfishes (Pomacentridae)

Distribution

Region

Western Pacific

Distribution

Western Pacific: endemic to the southern Coral Sea-northern Tasman Sea region; known in Australia, Norfolk Islands, and New Caledonia, New Zealand.

Range

10°S - 50°S

Environment

Climate

Subtropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

1 m

Depth To - meters

30 m

Zone

reef-associated

Environment

Marine; reef-associated; non-migratory; depth range 1 - 30 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

Least Concern (LC)