Environment: milieu / climate zone / depth range / distribution range
البيئة
بحري مرتبطة بالشعاب; نطاق العمق 2 - 40 m (Ref. 48637), usually 10 - ? m. Tropical
Indo-Pacific: East Africa to Micronesia (excluding the Marshall Islands), north to the Ryukyu Islands, south to the Solomon Islands and the Great Barrier Reef. Range extending to Rangiroa Atoll, Tuamotu Archipelago.
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 40.0 cm FL ذكر/ مختلط الجنس; (Ref. 9710); common length : 25.0 cm FL ذكر/ مختلط الجنس; (Ref. 9710)
الأشواك الظهرية (المجموع) : 4; الأشعة الظهرية الناعمة (المجموع) : 28 - 30; شوكة شرجية: 2; أشعه شرجية لينه: 27 - 29. Body elongate-ovate. Dorsal and anal profiles nearly even. Forehead without rostral prominence when in adults. Peduncular plate single, with a semicircular, retrorsely curved keel. Reaches 35 cm SL.
Generally uncommon species found in steep outer lagoon and seaward reef slopes (Ref. 9710, 48637). Maximum depth reported at 40m (Ref. 37792) Occurs singly or in large schools (Ref. 9710, 48637). Usually seen swimming steadily along upper edges of drop-offs in pursuit of plankton (Ref. 48637). A semi-pelagic fish that feeds on zooplankton, but remains over or near reefs. Also feeds on algae (Ref. 30573). It is cleaned by Labroides and sleeps on reefs at night, taking on a disruptive mottled pattern (Ref. 10671). Caught with nets (Ref. 30573).
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Randall, J.E., 1994. Unicornfishes of the subgenus Axinurus Perciformes: Acanthuridae: Naso), with description of a new species. Copeia 1994(1):116-124. (Ref. 10671)
IUCN Red List Status (Ref. 130435: Version 2024-2)
استخدامات بشرية
مصائد: تجاري; حوض مائي: تجاري
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Preferred temperature (Ref.
123201): 24.7 - 29, mean 27.7 °C (based on 470 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02188 (0.01261 - 0.03794), b=3.06 (2.91 - 3.21), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.0 ±0.32 se; based on food items.
المرونه (Ref.
120179): وسيط, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 1.4-4.4 سنة (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (34 of 100).
Nutrients (Ref.
124155): Calcium = 42.7 [26.3, 73.0] mg/100g; Iron = 0.552 [0.287, 0.947] mg/100g; Protein = 19 [18, 20] %; Omega3 = 0.139 [0.094, 0.248] g/100g; Selenium = 31 [18, 49] μg/100g; VitaminA = 70.4 [28.1, 175.2] μg/100g; Zinc = 1.3 [0.9, 1.8] mg/100g (wet weight);
