Scientific Name
Stegastes emeryi

Common Name
Emery's gregory

Biology
Dorsal spines (total): 13; Dorsal soft rays (total): 15-17; Anal spines: 2; Anal soft rays: 13 - 14. Most of the body and head is brown, grading to pale tan or off-white on ventral portion; slight suffusion of yellow on head and nape; dark brown streak near margin of each scale, appearing as series of narrow transverse bands. A prominent dark brown to blackish spot occupying four scales is below the 15-16th tubed lateral line scale. The fins, most of soft dorsal, caudal peduncle and posteriormost part of body yellow; pectorals transparent with suffusion of yellow and a small dark brown spot superiorly at pectoral fin base. The rim of the anal opening is dark brown.

Classification

Classified By

Allen & Randall, 1974

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Damselfishes (Pomacentridae)

Distribution

Region

Eastern Central Pacific

Distribution

Eastern Central Pacific: Pitcairn and Tuamoto Islands.

Range

10°S - 27°S

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

1 m

Depth To - meters

18 m

Zone

reef-associated

Environment

Marine; reef-associated; non-migratory; depth range 1 - 18 m (Ref. 9710)

Trophic Level

2.24 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

10.0 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 vulnerability (21 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