The Great Fiji Butterflyfish Count

Bluespot butterflyfish

Chaetodon plebeius Cuvier, 1831

Family: Chaetodontidae (Butterflyfishes) picture (Chple_u0.jpg) by Randall, J.E.
Image for Chaetodon plebeius, Chaetodontidae, Blueblotch butterflyfish.

AquaMaps | Point map |
Order: Perciformes (perch-likes)
Class: Actinopterygii (ray-finned fishes)
FishBase name: Blueblotch butterflyfish
Max. size: 15.0 cm TL (male/unsexed; Ref. 559)
Environment: reef-associated; marine; depth range ? – 10 m
Climate: tropical; 45°N – 20°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)
Western Pacific: Andaman Sea to Fiji, north to Japan, south to Australia. Recently reported from Tonga (Ref. 53797).
Morphology: Dorsal spines (total): 13 – 15; Dorsal soft rays (total): 16 – 18; Anal spines: 4 – 5; Anal soft rays: 36 – 41. Body is yellow with narrow dark stripes on the sides. There is an elongate blue blotch on the upper sides and a white-edged black spot on the caudal peduncle. A white-edged black bar runs vertically on the head across the eye.
Biology: Feed mainly on polyps of Acropora corals in lagoons and outer reefs. Oviparous (Ref. 205), monogamous (Ref. 52884). Form pairs during breeding (Ref. 205). Clean parasites from other fishes (Ref. 9710).
Red List Status: Not Evaluated (Ref. 57073)
Dangerous: harmless
Main Ref: Steene, R.C.. 1978. (Ref. 4859)