Actinopteri (ray-finned fishes) > Acanthuriformes
(Surgeonfishes) > Pomacanthidae
Etymology: Apolemichthys: Greek, apolemos, -os,-on = quiet, peaceful + Greek, ichthys = fish (Ref. 45335). More on author: Gray.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; non-migratory; depth range 12 - 183 m (Ref. 11013), usually 25 - 50 m (Ref. 47838). Tropical; 0°C - ; 30°N -
Eastern Central Pacific: Hawaiian and Johnston islands.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 18.0 cm TL male/unsexed; (Ref. 3921)
soft rays: 18. Overall pale with a broad black bar bordered by a narrow pearly white band running across the upper side from the front of the eye to the posterior portion of the soft dorsal fin. A similar broad black band with pearly white border runs submarginal on the caudal and anal fins.
Common on rocky reefs, in ledges and caves; also in coral areas (Ref. 47838). Benthopelagic (Ref. 58302). Submarine observations to 183 m (Ref. 11013). Feeds mainly on sponges (Ref. 47838); stomach content of some specimens also had algae, traces of hydroids and unidentified eggs. Minimum depth from Ref. 47838.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Allen, G.R., R. Steene and M. Allen, 1998. A guide to angelfishes and butterflyfishes. Odyssey Publishing/Tropical Reef Research. 250 p. (Ref. 47838)
IUCN Red List Status (Ref. 124695)
Threat to humans
Fisheries: ; aquarium: commercial
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 7.3 - 15.2, mean 9.1 °C (based on 5 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.03311 (0.01551 - 0.07068), b=2.88 (2.70 - 3.06), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 2.9 ±0.1 se; based on diet studies.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (33 of 100) .
Nutrients (Ref. 124155
): Calcium = 62.3 [37.6, 96.9] mg/100g ; Iron = 0.622 [0.402, 0.994] mg/100g ; Protein = 18.6 [17.5, 19.7] % ; Omega3 = 0.132 [0.084, 0.201] g/100g ; Selenium = 24.8 [14.0, 45.7] μg/100g ; VitaminA = 84.9 [25.9, 264.2] μg/100g ; Zinc = 1.4 [0.9, 2.1] mg/100g (wet weight);