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Acanthuriformes (Surgeonfishes) >
Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Acanthurinae
Etymology: Acanthurus: Greek, akantha = thorn + Greek, oura = tail (Ref. 45335).
More on author: Bloch.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser riff-verbunden; tiefenbereich 2 - 25 m (Ref. 7345), usually 2 - 15 m (Ref. 27115). Subtropical; 22°C - 25°C (Ref. 27115); 43°N - 30°S, 98°W - 5°W (Ref. 55164)
Western Atlantic: Massachusetts (USA), Bermuda, and the northern Gulf of Mexico to São Paulo, Brazil. Eastern Atlantic: Senegal and Ascension Is.
Länge bei der ersten Reifung / Größe / Gewicht / Alter
Geschlechtsreife: Lm ?, range 17 - ? cm
Max length : 39.0 cm TL Männchen/unbestimmt; (Ref. 47377); common length : 35.0 cm TL Männchen/unbestimmt; (Ref. 5217); max. veröff. Gewicht: 5.1 kg (Ref. 40637)
Rückenflossenstacheln (insgesamt) : 9; Rückenflossenweichstrahlen (insgesamt) : 24 - 25; Afterflossenstacheln: 3; Afterflossenweichstrahlen: 22 - 23. Caudal fin slightly emarginate (Ref. 13442). Body gray, with 10 well-spaced, narrow, darker gray vertical bars on side (Ref. 26938).
Body shape (shape guide): short and / or deep.
Inhabits shallow reefs or rocky areas. Found in loose aggregations (Ref. 9710). Mainly diurnal. Ingests sand when feeding on algae (Ref. 13442). The spine on both sides of the caudal peduncle may inflict painful wounds (Ref. 5217). Minimum depth reported from Ref. 27115. Larvae are planktonic (Ref. 47377). At Fernando de Noronha Archipelago in southwestern Atlantic, juveniles hold cleaning stations together with the blue tang (Acanthurus coeruleus) and sergeant major (Abudefduf saxatilis) and graze algae as well as pick molted skin and parasites from green turtles (Chelonia mydas). This behavior is preceded by a characteristic inspection usually followed by feeding nips on the turtles’ skin (head, limbs, and tail), as well as on the carapace. The most inspected and cleaned body parts are the flippers (Ref. 51385).
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
Robins, C.R. and G.C. Ray, 1986. A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p. (Ref. 7251)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Traumatogenic (Ref. 5217)
Nutzung durch Menschen
Fischereien: weniger kommerziell; Sportfisch: ja; Aquarium: Kommerziell
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Bevorzugte Temperatur (Ref.
123201): 26.1 - 28, mean 27.4 °C (based on 769 cells).
Phylogenetischer Diversitätsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02188 (0.01816 - 0.02636), b=2.96 (2.92 - 3.00), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trophische Ebene (Ref.
69278): 2.1 ±0.1 se; based on diet studies.
Widerstandsfähigkeit (Ref.
120179): mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (K=0.25-0.50).
Anfälligkeit der Fischerei (Ref.
59153): Low vulnerability (23 of 100).
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Nährstoffe (Ref.
124155): Calcium = 39.8 [15.6, 133.0] mg/100g; Iron = 0.822 [0.286, 2.182] mg/100g; Protein = 19.1 [17.8, 20.4] %; Omega3 = 0.146 [0.063, 0.347] g/100g; Selenium = 8.83 [2.71, 27.87] μg/100g; VitaminA = 17.5 [3.7, 82.5] μg/100g; Zinc = 1.78 [0.55, 3.61] mg/100g (wet weight);
