Larvae Information Summary for  Catostomus catostomus
( not available )

Main Ref: Morrow, J.E. 1980
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm) 8      
Preanal L. % TL        
Place of development  
Larval area to be filled
Yolk-sac       Ref:  
Yolk   Oil globules  
Upon hatching, young remain in gravel for 1 to 2 weeks. In some areas, a nocturnal downstream movement of fry begins as soon as the fish emerge from the gravel. However, in interior Alaska, some of the young stay in streams all summer (Ref. 27547).
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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