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Black-axil chromis (Chromis atripectoralis) fish species and information / pictures of Black-axil chromis - Chromis atripectoralis

Black-axil chromis (Chromis atripectoralis) fish species information

Scientific Name
Chromis atripectoralis

Common Name
Black-axil chromis

Biology
Dorsal spines (total): 12; Dorsal soft rays (total): 9-10; Anal spines: 2; Anal soft rays: 9 - 10. This species differs from the smaller blue-green C. viridis, by possessing a distinct black blotch on the inner pectoral axil.

Classification

Classified By

Welander & Schultz, 1951

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Damselfishes (Pomacentridae)

Distribution

Region

Indo-Pacific

Distribution

Indo-Pacific: most islands of Oceania except Hawaiian Islands, Marquesas, and Pitcairn Group; also Australia north to the Ryukyu Islands. In the Indian Ocean, there are confirmed records Seychelles, Thailand and Western Australia. Often confused with Chromis viridis.

Range

30°N - 32°S

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

1 m

Depth To - meters

29 m

Zone

reef-associated

Environment

Marine; reef-associated; non-migratory; depth range 1 - 29 m (Ref. 9710)

Trophic Level

3.06 s.e. 0.18 Based on diet studies.

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

True

Is kept in Aquariums

True

Physical Size and Genetics

Maximum Length

12.0 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

Fisheries: subsistence fisheries; aquarium: commercial

Vulnerability

Low vulnerability (23 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