FishBase
Larvae Information Summary for  Megalops atlanticus
( not available )

Main Ref: Fahay, M. 1983
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm)        
Preanal L. % TL        
Place of development planktonic
Larval area Mid-Atlantic Bight
Yolk-sac       Ref:  
Yolk   Oil globules  
Rows on tail  
Other melanophores on tail  
Post larvae
Striking feature none
Striking shape lateral eel-like dorsal compressed
Striking feature none
Shape of gut  
Gas bladder   early pigmented late pigmented
Spinal armature   early no spines late no spines
Pigmentation early
Rows on tail lateral row
Other melanophores on tail more than two dorso-ventral clusters or bands
Melanophores on head + trunk melanophores on head + trunk
Rows on tail dorsal row
Other melanophores on tail more than two dorso-ventral clusters or bands
Melanophores on head + trunk melanophores on head + trunk
Pectorals normal melanophores at fin base
Leptocephalus-like with forked caudal fin, triangular head, and ribbon-like body; gut long, about 70% TL; air bladder conspicuous after flexion; teeth prominent in early larvae; period of larval growth followed by shrinkage and thickening of body during metamorphosis, and then resumption of growth up to juvenile stage. Pigmentation: dorsal edge of gut, anal base, and over eye; pigment scatters with growth. Sequence of fin formation: caudal (10-11 mm SL); dorsal and anal (16-20 mm SL); pectoral; pelvic.
Meristic characters
  max min mod Ref.
Total number of myomeres 57 54   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
Entered by: Luna,Susan M. - 08.08.00
Modified by: Luna,Susan M. - 29.05.01
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