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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 / depth range / distribution range
البيئة
بحري مرتبطة بالشعاب; نطاق العمق 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.
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 70.0 cm TL ذكر/ مختلط الجنس; (Ref. 4795); common length : 50.0 cm TL ذكر/ مختلط الجنس; (Ref. 30573); العمر: 29 سنين (Ref. 127555)
الأشواك الظهرية (المجموع) : 8 - 9; الأشعة الظهرية الناعمة (المجموع) : 25 - 27; شوكة شرجية: 3; أشعه شرجية لينه: 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.
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).
Life cycle and mating behavior
Maturities | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae
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)
استخدامات بشرية
مصائد: غير مهمة تجارياً; حوض مائي: تجاري
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Preferred temperature (Ref.
123201): 23.3 - 29, mean 27.7 °C (based on 2980 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01413 (0.00613 - 0.03255), b=3.00 (2.79 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
مستوى غذائي (Ref.
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.
المرونه (Ref.
120179): منخفض, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 4.5-14 سنة (K=0.287; Tmax=34).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (37 of 100).
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);
