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Acanthuriformes (Surgeonfishes) >
Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Acanthurinae
Etymology: Acanthurus: Greek, akantha = thorn + Greek, oura = tail (Ref. 45335).
More on author: Randall.
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
marina revassocierade; djupintervall 1 - 20 m (Ref. 90102). Tropical; 20°N - 25°S, 35°E - 172°W
Western Indian Ocean: Mozambique (Ref. 41878). Indo-West Pacific: Seychelles (Ref. 10685), Philippines, Indonesia and Great Barrier Reef; recently found in Maldives. Reported from Malaysia (Ref. 5756) and Samoa (Ref. 592).
Size / Vikt / Age
Könsmognad: Lm ? range ? - ? cm
Max length : 45.0 cm SL hane/ej könsbestämd; (Ref. 48637); rapporterad maxålder: 30 år (Ref. 52229)
Taggstrålar i ryggfenan (totalt) : 9; Mjukstrålar i ryggfenan (totalt) : 25 - 26; Taggstrålar i analfenan: 3; Mjukstrålar i analfenan: 23 - 24. Color in life dark brown; orange brown from pectoral base downward; caudal spine socket bright orange; orange blotch before and behind pupil; caudal fin base with a white band. Anterior gill rakers 20-23, posterior 24-28. Large caudal spine, 2.2 - 4.4 in head.
Body shape (shape guide): short and / or deep; Cross section: compressed.
Adults inhabit shallow reefs, both in lagoons and outer reef areas. They frequently move in groups. Juveniles found between soft corals in lagoons at depths of up to 2 m (Ref. 9710, 48637). Adults in groups, often mixed with other similar species (Ref. 48637).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Randall, J.E., 1956. A revision of the surgeonfish genus Acanthurus. Pac. Sci. 10(2):159-235. (Ref. 1920)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Fiskeri: kommersiell
Verktyg
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 25.6 - 29.3, mean 28.5 °C (based on 2408 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02344 (0.01118 - 0.04914), b=2.95 (2.78 - 3.12), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 2.0 ±0.1 se; based on size and trophs of closest relatives
Generation time: 1.6 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Resiliens (Ref.
120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (tmax=30; K=0.67).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (26 of 100).
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Nutrients (Ref.
124155): Calcium = 57.6 [23.7, 169.7] mg/100g; Iron = 0.797 [0.301, 1.988] mg/100g; Protein = 18.4 [17.1, 19.6] %; Omega3 = 0.0927 [, ] g/100g; Selenium = 19 [7, 57] μg/100g; VitaminA = 26.1 [6.0, 106.8] μg/100g; Zinc = 2.6 [0.8, 4.9] mg/100g (wet weight);
