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Acanthuriformes (Surgeonfishes) >
Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Acanthurinae
Etymology: Acanthurus: Greek, akantha = thorn + Greek, oura = tail (Ref. 45335).
More on author: Günther.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino associati a barriera corallina; distribuzione batimetrica 1 - 90 m (Ref. 1602). Tropical; 30°N - 26°S, 52°E - 137°W
Western Central Pacific: southern Japan, Yap, Guam, Pagan, Vanuatu, and Great Barrier Reef; widely in the central Pacific Ocean (except for the Hawaiian
Islands and Johnston Atoll).
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 25.0 cm TL maschio/sesso non determinato; (Ref. 2334)
Spine dorsali (totale) : 9; Raggi dorsali molli (totale) : 25; Spine anali: 3; Raggi anali molli: 25; Vertebre: 22. This species is characterized by the following: D IX,25; pectoral rays 16; gill rakers 25; teeth incisiform, denticulate, and close-set, with the distal end of upper teeth rounded with 12
upper and 14 lower teeth; body depth 1.9 in SL. Colouration: body light to dark brown with irregular, longitudinal, dotted stripes narrower than brown interspaces; suborbital and opercular region with stripes paralleling snout outline; rear base of dorsal and anal fins with a pupil-sized black blotch; dorsal and anal fins with bands paralleling outer edge (Ref. 138601).
Body shape (shape guide): short and / or deep; Cross section: compressed.
Inhabits clear lagoon and seaward reefs; often in areas with mixed coral, pavement, rubble and sand substrates (Ref. 1602). Benthopelagic (Ref. 58302). Occurs singly or in small groups (Ref. 9710). Feeds on filamentous algae, diatoms and fine algal film of compacted sand (Ref. 1602). Relatively uncommon throughout Micronesia; rare on Great Barrier Reef.
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Randall, J.E., J.D. DiBattista and C. Wilcox, 2011. Acanthurus nigros Günther, a valid species of surgeonfish, distinct from the Hawaiian A. nigroris Valenciennes. Pacific Science 65(2):265-275. (Ref. 138600)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: commerciale; Acquario: Commerciale
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.02291 (0.01093 - 0.04802), b=2.96 (2.79 - 3.13), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
Livello trofico (Fonte Biblio. 69278) |
2.0 ±0.00 se; based on food items. |
Resilienza (Fonte Biblio. 120179) |
Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.). |
Vulnerabilità della pesca (Ref. 59153) |
Low vulnerability (25 of 100). 🛈 |
Categoria di prezzo (Ref. 80766) |
Medium.
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Nutrienti (Ref. 124155) |
Calcium = 67.7 [27.5, 195.0] mg/100g; Iron = 0.8 [0.3, 2.0] mg/100g; Protein = 18.1 [16.8, 19.3] %; Omega3 = 0.116 [0.054, 0.241] g/100g; Selenium = 20.6 [7.2, 63.2] μg/100g; VitaminA = 43.3 [9.9, 178.5] μg/100g; Zinc = 2.95 [0.94, 5.46] mg/100g (wet weight); |