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Larvae Information Summary for  Acipenser oxyrinchus
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Main Ref: Jones, P.W., F.D. Martin and J.D. Hardy Jr. 1978
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm)     11 4639
Preanal L. % TL        
Place of development in close association with substrate
Larval area Mid-Atlantic Bight
Yolk-sac ovoid   unpigmented Ref:  
Yolk   Oil globules  
Melanophores on head + trunk melanophores on head
Yolk sac is large, oval, vascular; head not deflected over yolk; mouth formed; eye relatively small; auditory vesicles round, equal to eye; branchial arches concealed by opercular folds; barbels lacking; pectoral buds present; origin of dorsal finfold in occipital region (Ref. 4639).
Post larvae
Striking feature  
Striking shape lateral   dorsal  
Striking feature  
Shape of gut  
Gas bladder   early   late  
Spinal armature   early   late  
Undescribed except that this species is toothless 'except in larval stages" (Ref. 4639).
  L 1st feeding Ref. Months of presence of larvae
max     Jan Feb Mar Apr
min   May Jun Jul Aug
mod     Sep Oct Nov Dec
Water parameters     Metric characters
Entered by: Luna,Susan M. - 23.05.01
Modified by: Luna,Susan M. - 15.04.08
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