Actinopteri (ray-finned fishes) > Acanthuriformes
(Surgeonfishes) > Acanthuridae
(Surgeonfishes, tangs, unicornfishes) > Acanthurinae
Etymology: Acanthurus: Greek, akantha = thorn + Greek, oura = tail (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 2 - 40 m (Ref. 7345), usually - m (Ref. ). Tropical; 0°C - ; - 30°S, 50°W - 5°W (Ref. 87362)
South and Central Atlantic: coast of Brazil, from Parcel Manuel Luiz to Santa Catarina, including the oceanic Islands of Fernando de Noronha, Atol das Rocas, Trindade, Ascension I. and St. Helena I. (Ref. 87362).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Bernal, M.A. and L.A. Rocha, 2011. Acanthurus tractus Poey, 1860, a valid western Atlantic species of surgeonfish (Teleostei, Acanthuridae), distinct from Acanthurus bahianus Castelnau, 1855. Zootaxa 2905:63-68. (Ref. 87362)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01950 (0.01140 - 0.03336), b=2.92 (2.78 - 3.06), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 2.1 ±0.1 se; based on size and trophs of closest relatives
Generation time: 0.9 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (18 of 100) .
Nutrients (Ref. 124155
): Calcium = 498 [146, 1,592] mg/100g ; Iron = 1.78 [0.59, 4.42] mg/100g ; Protein = 17.7 [16.3, 19.1] % ; Omega3 = 0.189 [0.069, 0.534] g/100g ; Selenium = 7.03 [1.76, 29.18] μg/100g ; VitaminA = 236 [51, 1,086] μg/100g ; Zinc = 6.16 [1.85, 13.58] mg/100g (wet weight);