Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
Biển Cùng sống ở rạn san hô; Mức độ sâu 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.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ? range ? - ? cm
Max length : 40.0 cm FL con đực/không giới tính; (Ref. 9710); common length : 25.0 cm FL con đực/không giới tính; (Ref. 9710)
Các tia vây lưng cứng (tổng cộng) : 4; Các vây lưng mềm (tổng cộng) : 28 - 30; Tia cứng vây hậu môn: 2; Tia mềm vây hậu môn: 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
Maturities | Sự tái sinh sản | Spawnings | Egg(s) | Fecundities | Ấu trùng
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)
Threat to humans
Harmless
Human uses
Các nghề cá: Tính thương mại; Bể nuôi cá: Tính thương mại
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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=0.01950 (0.01114 - 0.03412), b=3.09 (2.94 - 3.24), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 3.0 ±0.32 se; based on food items.
Thích nghi nhanh (Ref.
120179): Trung bình, thời gian nhân đôi của chủng quần tối thiểu là 1.4 - 4.4 năm (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);
