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Acanthuriformes (Surgeonfishes) >
Pomacanthidae (Angelfishes)
Etymology: Genicanthus: Greek, geny, -yos = face, jaw + Greek, akantha = thorn (Ref. 45335).
Eponymy: Dr Masao Watanabe was a Japanese ichthyologist at the University of Tokyo. [...] (Ref. 128868), visit book page.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina revassocierade; ej vandrande; djupintervall 21 - 81 m (Ref. 9710). Tropical; 30°N - 28°S
Pacific Ocean: Taiwan to the Tuamoto Islands, north to the Ryukyu Islands, south to New Caledonia and the Austral Islands.
Storlek / Vikt / Ålder
Könsmognad: Lm ? range ? - ? cm
Max length : 15.0 cm TL hane/ej könsbestämd; (Ref. 9710)
Taggstrålar i ryggfenan (totalt) : 15 - 16; Mjukstrålar i ryggfenan (totalt) : 15 - 16; Taggstrålar i analfenan: 3; Mjukstrålar i analfenan: 14 - 17. Males light blue with 8 black stripes on the lower 2/3 of the body (the posterior end of the uppermost yellow, the lowermost stripes extending the adjacent anal fin); females light blue with a vertical black bar above the eye and spots on the forehead; both sexes with a broad submarginal band on the dorsal and anal fins; females with broad submarginal band on the caudal-fin lobes.
Body shape (shape guide): short and / or deep; Cross section: compressed.
Occurs in current-swept outer reef slopes and drop-offs (Ref. 4859). Feeds on plankton. Forms harems of 2-5 individuals. Occasionally exported through the aquarium trade (Ref. 48391).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Steene, R.C., 1978. Butterfly and angelfishes of the world. A.H. & A.W. Reed Pty Ltd., Australia. vol. 1. 144 p. (Ref. 4859)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: kommersiell; Akvarium: Kommersiell
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Uppskattningar baserade på modeller
Önskad temperatur (Ref.
123201): 24.2 - 28.7, mean 26.5 °C (based on 65 cells).
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.03020 (0.01316 - 0.06929), b=2.89 (2.70 - 3.08), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.4 ±0.45 se; based on food items.
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Preliminary K or Fecundity.).
Sårbarhet i fisket (Ref.
59153): Low vulnerability (10 of 100).
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Näringsämnen (Ref.
124155): Calcium = 77.5 [37.3, 119.0] mg/100g; Iron = 0.696 [0.415, 1.159] mg/100g; Protein = 18.2 [17.0, 19.3] %; Omega3 = 0.126 [0.074, 0.209] g/100g; Selenium = 27.6 [14.1, 54.4] μg/100g; VitaminA = 154 [43, 527] μg/100g; Zinc = 1.27 [0.85, 1.83] mg/100g (wet weight);
