Actinopterygii (ray-finned fishes) >
Perciformes (Perch-likes) >
Chaetodontidae (Butterflyfishes)
Etymology: Heniochus: Greek, enioi, -ai, -a = sometimes, some + Greek, oche = food (Ref. 45335).
Environment / Climate / Range
Ecology
Marine; brackish; reef-associated; depth range 2 - 178 m (Ref. 86942), usually 15 - 75 m (Ref. 9710). Tropical, preferred ?; 30°N - 35°S
Indo-Pacific: East Africa and Persian Gulf to the Society Islands, north to southern Japan, south to Lord Howe Island. Throughout Micronesia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 25.0 cm TL male/unsexed; (Ref. 5372); common length : 15.0 cm TL male/unsexed; (Ref. 5450)
Inhabit deep, protected lagoons and channels, and the deeper parts of outer reef slopes. Juveniles are often solitary while adults occur in pairs (Ref. 1602, 48636). A planktivorous species that generally remains within a few meters of the reef. Juveniles may sometimes pick on parasites on the epidermis of other fish (Ref. 5503). Oviparous (Ref. 205). Form pairs during breeding (Ref. 205).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Form pairs during breeding (Ref. 205).
Steene, R.C., 1978. Butterfly and angelfishes of the world. A.H. & A.W. Reed Pty Ltd., Australia. vol. 1. 144 p. (Ref. 4859)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 94142)
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: minor commercial; aquarium: commercial
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Estimates of some properties based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02239 (0.01406 - 0.03564), b=3.04 (2.90 - 3.18), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic Level (Ref.
69278): 3.5 ±0.41 se; Based on food items.
Resilience (Ref.
69278): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref.
59153): Low vulnerability (20 of 100) .