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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: L
m
 
?
  range ? - ? cm
Max length : 12.8 cm TL male/unsexed; (Ref.
91126
)
A diurnal species. Maximum depth from Ref. 126840.
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
)
Phylogenetic diversity index (Ref.
82804
): PD
50
= 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
): 2.4 ±0.1 se; based on size and trophs of closest relatives
Resilience (Ref.
120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153
): Low vulnerability (10 of 100).
Nutrients (Ref.
124155
): Calcium = 419 [167, 1,788] mg/100g; Iron = 1.56 [0.51, 4.22] mg/100g; Protein = 17.3 [15.8, 18.8] %; Omega3 = 0.176 [0.065, 0.472] g/100g; Selenium = 7.92 [2.10, 38.26] μg/100g; VitaminA = 271 [52, 1,310] μg/100g; Zinc = 8.15 [2.49, 17.42] mg/100g (wet weight);
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