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Larvae Information Summary for  Platichthys flesus
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Main Ref: Russell, F.S. 1976
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm) 3.3 2.3 2.8 37
Preanal L. % TL 40 34.6 37.3  
Place of development planktonic
Larval area to be filled
Yolk-sac ovoid   unpigmented Ref:  
Yolk unsegmented Oil globules no oil globule
Rows on tail dorsal + ventral row
Other melanophores on tail one dorso-ventral cluster or band
Melanophores on head + trunk melanophores on head + trunk
Pigmentation all over the marginal fins, forming regular rows of small spots along the ventral fin rays.
Post larvae
Striking feature none
Striking shape lateral short and/or deep dorsal compressed
Striking feature none
Shape of gut spherical or gut loop
Gas bladder   early invisible late invisible
Spinal armature   early no spines late no spines
Pigmentation early
Rows on tail ventral row
Other melanophores on tail tail partly covered with melanophores
Melanophores on head + trunk melanophores on head + trunk
Pigmentation late
Rows on tail ventral row
Other melanophores on tail tail partly covered with melanophores
Melanophores on head + trunk melanophores on head + trunk
Urostyle region   early pigmented late pigmented
Peritoneum covered with melanophores
Pectorals normal  
Pelvics normal (i.e. small or absent)  
There are a number of scattered melanophores concentrated along the ventral sides of the body.
Meristic characters
  max min mod Ref.
Total number of vertebrae 38 32 35 65
Preanal number of vertebrae 12 10 11 65
  L 1st feeding Ref. Months of presence of larvae
max     Jan Feb Mar Apr
min   May Jun Jul Aug
mod 4   Sep Oct Nov Dec
Water parameters     Metric characters
Entered by: Papasissi,Christine - 19.10.90
Modified by: Froese,Rainer - 14.08.00
Checked by: Giovanardi,Otello - 15.02.91
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