FishBase
Larvae Information Summary for  Acanthurus triostegus
( not available )

Main Ref: Johannes, R.E. 1980
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm)     1.7 240
Preanal L. % TL        
Place of development planktonic
Larval area Northwestern Pacific (Japan)
Yolk-sac spherical     Ref:  
Yolk   Oil globules one oil globuleposteriordorsal
Larvae have an immense spherical yolk-sac that contains an oil droplet at its most posterior point. The heart doesn't begin beating until five hours after hatching. Yolk is completely absorbed within one to two days of hatching (Ref. 240).
Post larvae
Striking feature some dorsal fin rays very elongated
Striking shape lateral rhomboid dorsal  
Striking feature some dorsal fin rays very elongated
Shape of gut  
Gas bladder   early   late  
Spinal armature   early   late  
Pectorals normal  
Pelvics with elongated fin rays  
On the 2nd day after hatching, eye pigments, vertical fin folds, and pelvic fin rudiments (anlagen) have begun to develop. After 3 days, the jaws are developed. After 4 days, the gut developed. Feeding may occur at this point (Ref. 240).
  L 1st feeding Ref. Months of presence of larvae    Ref. 
max     Jan Feb Mar Apr
min   May Jun Jul Aug
mod     Sep Oct Nov Dec
Water parameters     Metric characters
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