Teleostei (teleosts) >
Acanthuriformes (Surgeonfishes) >
Pomacanthidae (Angelfishes)
Etymology: Genicanthus: Greek, geny, -yos = face, jaw + Greek, akantha = thorn (Ref. 45335).
More on author: Randall.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; non-migratory; depth range 24 - 110 m (Ref. 90102), usually 50 - 100 m (Ref. 48391). Tropical; 19°N - 18°S
Eastern Indian Ocean: Cocos-Keeling Atoll. Pacific Ocean: Philippines, Palau, Guam, Cook Island and the Society Islands. Recently reported from Tonga (Ref. 53797). Distribution may be expanded with more deep reef exploration.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 18.0 cm TL male/unsexed; (Ref. 48636)
Schools along steep current-swept outer reef drop-offs from 45 to at least 97 m. Forms harems of 3-7 individuals. Feeds on plankton. Rarely exported through the aquarium trade (Ref. 48391). At Canderawasih Bay common depth range is 20-25 m (Ref. 90102).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Myers, R.F., 1991. Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquarium: commercial
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Estimates based on models
Preferred temperature (Ref.
123201): 21.5 - 28.9, mean 26.1 °C (based on 33 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.03090 (0.01378 - 0.06932), b=2.88 (2.69 - 3.07), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.4 ±0.45 se; based on food items.
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
Nutrients (Ref.
124155): Calcium = 67.3 [32.2, 102.4] mg/100g; Iron = 0.66 [0.40, 1.10] mg/100g; Protein = 18.2 [17.0, 19.3] %; Omega3 = 0.125 [0.075, 0.206] g/100g; Selenium = 30.7 [15.8, 59.5] μg/100g; VitaminA = 142 [39, 490] μg/100g; Zinc = 1.21 [0.81, 1.74] mg/100g (wet weight);