Teleostei (teleosts) > Acanthuriformes
(Surgeonfishes) > Pomacanthidae
Etymology: Pomacanthus: Greek, poma, -atos = cover, operculum + Greek, akantha = thorn (Ref. 45335).
More on authors: Gilchrist & Thompson.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated. Subtropical; - 34°S
Western Indian Ocean: Delagoa Bay, Mozambique to Knysna, South Africa.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 46.0 cm TL male/unsexed; (Ref. 10629); max. published weight: 3.0 kg (Ref. 10629)
Young occur singly and commonly found in tide pools. Adults are commonly seen in small groups in midwater or near the surface.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Randall, J.E., 1988. Pomacanthus rhomboides (Gilchrist and Thompson), the valid name for the South African angelfish previously known as Pomacanthus striatus. Spec. Publ. J.L.B. Smith Inst. Ichthyol. 46:7p. (Ref. 10629)
IUCN Red List Status (Ref. 126983)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 22.5 - 27.5, mean 26.3 °C (based on 184 cells).
Phylogenetic diversity index (Ref. 82804
= 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.03802 (0.01665 - 0.08683), b=2.88 (2.70 - 3.06), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245
Resilience (Ref. 120179
): Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Moderate vulnerability (36 of 100).
Nutrients (Ref. 124155
): Calcium = 24 [11, 44] mg/100g ; Iron = 0.491 [0.279, 0.847] mg/100g ; Protein = 19.1 [17.9, 20.3] % ; Omega3 = 0.14 [0.08, 0.24] g/100g ; Selenium = 16.5 [7.7, 34.7] μg/100g ; VitaminA = 35.6 [8.6, 140.4] μg/100g ; Zinc = 0.796 [0.517, 1.202] mg/100g (wet weight);