Actinopteri (ray-finned fishes) > Acanthuriformes
(Surgeonfishes) > Chaetodontidae
Etymology: Heniochus: Greek, enioi, -ai, -a = sometimes, some + Greek, oche = food (Ref. 45335). More on author: Ahl.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 1 - 25 m (Ref. 9710). Tropical
Indian Ocean: Maldives and Sri Lanka to Java, north to the Andaman Sea.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 17.0 cm TL male/unsexed; (Ref. 9710)
Inhabit coral-rich areas of lagoon and seaward reef (Ref. 9710). Found in pairs or aggregations (Ref. 9710). In Indonesia usually seen in pairs in coastal waters. Offshore it may form schools and in the Maldives they occur in great numbers. Found at various depths, often on shallow reef crest with some surge. Usually in mixed algae and coral habitats to about 15 m depth, but may go offshore (Ref. 48636). 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).
Burgess, W.E., 1978. Butterflyfishes of the world. A monograph of the Family Chaetodontidae. T.F.H. Publications, Neptune City, New Jersey. (Ref. 4855)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 28.1 - 29.4, mean 28.6 °C (based on 528 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02188 (0.01082 - 0.04423), b=3.01 (2.84 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.5 ±0.37 se; based on food items.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (13 of 100) .