Actinopteri (ray-finned fishes) > Acanthuriformes
(Surgeonfishes) > Chaetodontidae
Etymology: Heniochus: Greek, enioi, -ai, -a = sometimes, some + Greek, oche = food (Ref. 45335).
More on author: Cuvier.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 2 - 40 m (Ref. 9710). Tropical; 32°N - 28°S
Indo-Pacific: Western India to Pitcairn Islands, north to southern Japan, south to Rowley Shoals, southern Queensland, and New Caledonia; throughout Micronesia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 18.0 cm TL male/unsexed; (Ref. 9710)
Common in coral-rich areas of subtidal reef flats and lagoon and seaward reefs. Juveniles solitary and usually found in estuaries and lagoons; adults usually in pairs (Ref. 48636). Feed mainly on coral polyps. Oviparous (Ref. 205). Form pairs during breeding (Ref. 205). Minimum depth reported taken from Ref. 30874.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Form pairs during breeding (Ref. 205).
Myers, R.F., 1991. Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)
IUCN Red List Status (Ref. 125652)
Threat to humans
Fisheries: minor commercial; aquarium: commercial
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 24.7 - 28.9, mean 27.8 °C (based on 554 cells).
Phylogenetic diversity index (Ref. 82804
= 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01950 (0.01236 - 0.03076), b=3.09 (2.95 - 3.23), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 3.8 ±0.3 se; based on diet studies.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (10 of 100).
Nutrients (Ref. 124155
): Calcium = 95.9 [56.7, 166.7] mg/100g ; Iron = 0.75 [0.48, 1.32] mg/100g ; Protein = 19.3 [18.2, 20.4] % ; Omega3 = 0.153 [0.095, 0.247] g/100g ; Selenium = 28.9 [15.5, 57.1] μg/100g ; VitaminA = 57.8 [18.7, 184.4] μg/100g ; Zinc = 1.24 [0.83, 1.84] mg/100g (wet weight);