The Great Fiji Butterflyfish Count

Chaetodon unimaculatus
Teardrop butterflyfish

Chaetodon unimaculatus Bloch, 1787
Family: Chaetodontidae (Butterflyfishes) picture (Chuni_ul.jpg) by Asman, P.
Image for Chaetodon unimaculatus, Chaetodontidae, Teardrop butterflyfish.

AquaMaps | Point map |
Order: Perciformes (perch-likes)
Class: Actinopterygii (ray-finned fishes)
FishBase name: Teardrop butterflyfish
Max. size: 20.0 cm TL (male/unsexed; Ref. 9710)
Environment: reef-associated; marine; depth range 1 – 60 m
Climate: tropical; 30°N – 30°S
Importance: fisheries: minor commercial; aquarium: commercial; price category: not marketed/unknown
Resilience: High, minimum population doubling time less than 15 months(Preliminary K or Fecundity.)
Vulnerability: Low vulnerability (10.00), based on Lmax and K (Ref. 59153)
Indo-Pacific: East Africa (south to Port Alfred, South Africa, Ref. 5372) to the Hawaiian, Marquesan, and Ducie islands, north to southern Japan, south to the Lord Howe and Rapa islands; throughout Micronesia.
Morphology: Dorsal spines (total): 12 – 13; Dorsal soft rays (total): 19 – 23; Anal spines: 3; Anal soft rays: 18 – 20. Easily identified by the color pattern of yellow, white and black. Caudal fin is transparent. Juveniles are virtually identical to adults in coloration (Ref. 48636).
Biology: Occur in small groups in reef flats, clear lagoon and seaward reefs (Ref. 48636). Engybenthic (Ref. 58302). Feed on soft and hard corals, also on polychaetes, small crustaceans, and filamentous algae. In Indonesia, usually seen at moderate depths, usually swimming in small groups. Adults are mainly in depth 20-60 m (Ref. 48636). Oviparous (Ref. 205), monogamous (Ref. 52884). Form pairs during breeding (Ref. 205).
Red List Status: Not Evaluated (Ref. 57073)
Dangerous: harmless
Main Ref: Myers, R.F.. 1991. (Ref. 1602)