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Larvae Information Summary for  Percina sciera
( not available )

Main Ref: Page, L.M. and P.W. Smith 1970
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm)     5.5 69400
Preanal L. % TL        
Place of development in close association with substrate
Larval area Embarras River, Illinois
Yolk-sac elongated   pigmented Ref:  
Yolk   Oil globules  
Hatchlings have red blood, numerous melanophores on the ventral half of the body, and metallic gold eyes. In 2-day-old larvae, the lower jaw was evident, rays had formed in the pectoral fins, and the yolk sac was small. At 3 days, obvious breathing actions could be observed and at four days, the fry were feeding on prepared food. At 5 days, the yolk sac was gone and numerous melanophores were distributed along the myomeres.
Post larvae
Striking feature  
Striking shape lateral   dorsal  
Striking feature  
Shape of gut  
Gas bladder   early   late  
Spinal armature   early   late  
  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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