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Larvae Information Summary for  Argentina silus
( not available )

Main Ref: Fahay, M. 1983
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm) 9 6    
Preanal L. % TL        
Place of development planktonic
Larval area Mid-Atlantic Bight
Yolk-sac ovoid   pigmented Ref:  
Yolk segmented Oil globules one oil globulecentralventralunpigmented
Post larvae
Striking feature  
Striking shape lateral   dorsal  
Striking feature  
Shape of gut  
Gas bladder   early   late  
Spinal armature   early   late  
Diagnostic characters: eyes unpigmented upon hatching; no body pigment; broad fin fold; body long and slender, with long straight gut; low number of branchiostegal rays (6); adipose fin present after transformation. Sequence of fin formation: dorsal and anal fins form distally in finfold; caudal fin begins to ossify at about 28 mm; pectoral and pelvic fins form late.
Meristic characters
  max min mod Ref.
Total number of myomeres 67 64   68
Preanal number of myomeres 48 46   68
  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
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