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Larvae Information Summary for  Osmerus eperlanus
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Main Ref: Russell, F.S. 1976
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm) 6 4.62 5.3  
Preanal L. % TL     74.1  
Place of development planktonic
Larval area to be filled
Yolk-sac ovoid   pigmented Ref:  
Yolk unsegmented Oil globules one oil globuleanteriorcentralpigmented
Rows on tail ventral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on trunk
Post larvae
Striking feature none
Striking shape lateral normal (not striking) dorsal  
Striking feature none
Shape of gut tube-like
Gas bladder   early pigmented late pigmented
Spinal armature   early no spines late no spines
Pigmentation early
Rows on tail ventral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on trunk
Pigmentation late
Rows on tail ventral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on trunk
Urostyle region   early pigmented late pigmented
Peritoneum covered with melanophores
Pectorals other  
Pelvics normal (i.e. small or absent)  
  L 1st feeding Ref. Months of presence of larvae
max 8   Jan Feb Mar Apr
min 6   May Jun Jul Aug
mod 7   Sep Oct Nov Dec
Water parameters     Metric characters
Entered by: Froese,Rainer - 19.10.90
Modified by: Luna,Susan M. - 28.02.91
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