Klassifizierung / Names
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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.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser riff-verbunden; tiefenbereich 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).
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 25.0 cm TL Männchen/unbestimmt; (Ref. 2334)
Rückenflossenstacheln (insgesamt) : 9; Rückenflossenweichstrahlen (insgesamt) : 25; Afterflossenstacheln: 3; Afterflossenweichstrahlen: 25; Wirbelzahl: 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.
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
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)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: kommerziell; Aquarium: Kommerziell
Tools
Zusatzinformationen
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Phylogenetischer Diversitätsindex (Ref. 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). |
Trophische Ebene (Ref. 69278) |
2.0 ±0.00 se; based on food items. |
Widerstandsfähigkeit (Ref. 120179) |
hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.). |
Anfälligkeit der Fischerei (Ref. 59153) |
Low vulnerability (25 of 100). 🛈 |
Preiskategorie (Ref. 80766) |
Medium.
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Nährstoffe (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); |