Actinopteri (ray-finned fishes) > Acanthuriformes
(Surgeonfishes) > Pomacanthidae
Etymology: Genicanthus: Greek, geny, -yos = face, jaw + Greek, akantha = thorn (Ref. 45335). More on author: Günther.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; non-migratory; depth range 2 - 70 m (Ref. 9710). Tropical
Western Indian Ocean: Red Sea south to Natal, South Africa (Ref. 11228), including Maldives, Madagascar, Reunion, and Mauritius (Ref. 33390).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 20.0 cm TL male/unsexed; (Ref. 4858)
Inhabits shallow waters in the Red Sea; deeper in the Andaman Sea, usually at depths of 40 m or more. Caudal fin tips very long (Ref. 48636). A single male is usually seen with several females, commonly on steep slopes. Feeds on planktonic food several meters above the bottom.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Allen, G.R., 1985. Butterfly and angelfishes of the world. Vol. 2. 3rd edit. in English. Mergus Publishers, Melle, Germany. (Ref. 4858)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 23.8 - 29.3, mean 27.3 °C (based on 348 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this 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.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (34 of 100) .
Nutrients (Ref. 124155
): Calcium = 55.4 [32.4, 96.0] mg/100g ; Iron = 0.717 [0.441, 1.107] mg/100g ; Protein = 18.9 [17.9, 19.9] % ; Omega3 = 0.163 [0.107, 0.250] g/100g ; Selenium = 28.6 [15.4, 50.6] μg/100g ; VitaminA = 192 [77, 493] μg/100g ; Zinc = 1.29 [0.91, 1.82] mg/100g (wet weight);