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Acanthuriformes (Surgeonfishes) >
Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Acanthurinae
Etymology: Acanthurus: Greek, akantha = thorn + Greek, oura = tail (Ref. 45335); xanthopterus: Name from Greek 'xanthos' for yellow and 'ptero' for fin; referring to the yellow color of the outer part of the pectoral fin (Ref. 37792).
More on author: Valenciennes.
Environment: milieu / climate zone / गहराई सीमा / distribution range
पारिस्थितिकी
समुद्री प्रवाल-भित्ति संयुक्त; गहराई सीमा 1 - 100 m (Ref. 9267), usually 5 - 90 m (Ref. 27115). Tropical; 24°C - 28°C (Ref. 27115); 35°N - 35°S, 23°E - 77°W
Indo-Pacific: coast of East Africa to the Hawaiian Islands and French Polynesia, north to southern Japan, south to the Great Barrier Reef and New Caledonia. Eastern Pacific: lower Gulf of California and Clipperton Island to Panama and the Galapagos Islands.
आकार / वज़न / Age
परिपक्व अवधि: Lm ? range ? - ? cm
Max length : 70.0 cm TL पुल्लिंग / अलिंग; (Ref. 4795); common length : 50.0 cm TL पुल्लिंग / अलिंग; (Ref. 30573); अधिकतम सूचित उम्र: 34 वर्षो (Ref. 52229)
पृष्ठीय रीढ़ (सम्पूर्ण) : 8 - 9; पृष्ठीय सौफट रेज़ (सम्पूर्ण) : 25 - 27; गुदा कांटा: 3; ऐनल सौफट रेज़: 23 - 25. Body purplish gray when alive; grayish brown when preserved; a region of dull yellow in front of eye, a lesser extension posterior to lower part of eye; outer 1/3 of pectoral fin yellow, extreme distal part hyaline; dorsal and anal fins yellowish grey basally, dull yellow distally; caudal fin base whitish; caudal fin purplish. Anterior gill rakers 16-24, posterior 17-22. Caudal spine small.
Body shape (shape guide): short and / or deep; Cross section: compressed.
Live in various reef habitats, sand slopes and lagoons (Ref. 48637). Juveniles inhabit shallow, protected, turbid inshore waters while adults prefer deeper areas of protected bays and lagoons. Also in outer reef areas (Ref. 1602). Benthopelagic (Ref. 58302). Schooling species, feed on diatoms, detritus film of sand, filamentous algae, hydroids, and pieces of fish (Ref. 1602, 48637). Probably the only surgeonfish that readily takes bait (Ref. 12484).
Randall, J.E., 1956. A revision of the surgeonfish genus Acanthurus. Pac. Sci. 10(2):159-235. (Ref. 1920)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Human uses
मात्स्यिकी: लघु वाणिज्य; जलजीवालय: व्यापारिक
साधन
Special reports
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इंटरनेट स्रोत
Estimates based on models
Preferred temperature (संदर्भ
123201): 23.3 - 29, mean 27.7 °C (based on 2980 cells).
Phylogenetic diversity index (संदर्भ
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02455 (0.02112 - 0.02853), b=2.95 (2.91 - 2.99), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trophic level (संदर्भ
69278): 2.9 ±0.23 se; based on food items.
Generation time: 3.8 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
लौटाव (संदर्भ
120179): बहुत नीचे, न्यूनतम जनसंख्या दुगनी समय अवलागत 14 महीने। (K=0.287; tmax=34).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (37 of 100).
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Nutrients (Ref.
124155): Calcium = 33.2 [15.3, 112.0] mg/100g; Iron = 0.603 [0.209, 1.707] mg/100g; Protein = 19 [18, 20] %; Omega3 = 0.143 [0.065, 0.314] g/100g; Selenium = 22.5 [7.9, 74.1] μg/100g; VitaminA = 46.5 [18.2, 115.5] μg/100g; Zinc = 2.15 [0.68, 3.89] mg/100g (wet weight);
