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Acanthuriformes (Surgeonfishes) >
Chaetodontidae (Butterflyfishes)
Etymology: Johnrandallia: After John Randall, marine biologist, Bishop Museum of Hawaii; he worked in systematic ichthyology with fishes of Indopacific region.
Eponymy: John Randall, marine biologist at the Bishop Museum, Hawaii. (See Randall, also see Helen (Randall)) (Ref. 128868), visit book page.
More on author: Gill.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
marino asociado a arrecife; rango de profundidad 6 - 40 m (Ref. 9286), usually 6 - 12 m (Ref. 9286). Tropical; 40°N - 10°S, 120°W - 70°W
Eastern Pacific: Gulf of California to Panama, including the Cocos, Malpelo and Galapagos Islands.
Tamaño / Peso / Edad
Madurez: Lm ? range ? - ? cm
Max length : 20.0 cm TL macho / no sexado; (Ref. 9286); common length : 14.0 cm TL macho / no sexado; (Ref. 55763)
Descripción breve
Claves de identificación | Morfología | Morfometría
Espinas dorsales (total) : 11 - 12; Radios blandos dorsales (total) : 24 - 25; Espinas anales: 3; Radios blandos anales: 18 - 20. Body deep, compressed, and disk-shaped; dorsal profile of head steep and concave; snout pronounced; teeth very small and se in a comb-like band; base of pelvic spine with an axillary process; lateral line complete, extending over caudal peduncle; body yellowish; snout with a dark stain; eye bordered with black; posterior edge of operculum, base of pectoral fins, nape, and dorsal border (at base of dorsal fin) black (Ref. 55763).
Body shape (shape guide): short and / or deep; Cross section: compressed.
Often in large schools (Ref. 5227) over coral and rocky reefs (Ref. 9286). Feed on algae, gastropods, and small crustaceans (Ref. 9286). Pick parasites from larger fishes like Paranthias colonus and Mulloides dentatus (Ref. 28023). Oviparous (Ref. 205). Form pairs during breeding (Ref. 205).
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Form pairs during breeding (Ref. 205).
Schneider, M., 1995. Chaetodontidae. Peces mariposa. p. 1000-1003. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para lo Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref. 9286)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Harmless
Usos humanos
Pesquerías: comercial; Acuario: Comercial
Herramientas
Informes especiales
Descargar XML
Fuentes de Internet
Estimaciones basadas en modelos
Temperatura preferida (Referencia
123201): 17.9 - 29, mean 26.6 °C (based on 144 cells).
Índice de diversidad filogenética (Referencia
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02818 (0.01692 - 0.04693), b=3.07 (2.92 - 3.22), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Nivel trófico (Referencia
69278): 3.0 ±0.44 se; based on food items.
Resiliencia (Referencia
120179): Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.).
Vulnerabilidad pesquera (Ref.
59153): Low vulnerability (10 of 100).
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Nutrientes (Ref.
124155): Calcium = 89.4 [47.0, 136.0] mg/100g; Iron = 0.773 [0.468, 1.239] mg/100g; Protein = 18.6 [17.4, 19.6] %; Omega3 = 0.114 [0.071, 0.177] g/100g; Selenium = 34.1 [19.7, 61.6] μg/100g; VitaminA = 46.2 [13.5, 153.7] μg/100g; Zinc = 1.4 [1.0, 2.0] mg/100g (wet weight);
