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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.
Environment: milieu / climate zone / kisaran kedalaman / distribution range
Ekologi
laut berasosiasi dengan karang; kisaran kedalaman 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.
Size / Weight / umur
Kematangan: Lm ? range ? - ? cm
Max length : 20.0 cm TL jantan/; (Ref. 9286); common length : 14.0 cm TL jantan/; (Ref. 55763)
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
Duri punggung (Keseluruhan (total)) : 11 - 12; duri punggung lunak (Keseluruhan (total)) : 24 - 25; Duri dubur: 3; Sirip dubur lunak: 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).
Life cycle and mating behavior
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | 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)
Status IUCN Red List (Ref. 130435: Version 2025-1)
ancaman kepada manusia
Harmless
penggunaan manusia
Perikanan: komersial; Akuarium: Komersial
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimates based on models
Preferred temperature (Acuan
123201): 17.9 - 29, mean 26.6 °C (based on 144 cells).
Phylogenetic diversity index (Acuan
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02754 (0.01639 - 0.04628), b=3.08 (2.93 - 3.23), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Acuan
69278): 3.0 ±0.44 se; based on food items.
Daya lenting (Acuan
120179): Tinggi, Waktu penggandaan populasi minimum kurang dari 15 bulan (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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Nutrients (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);
