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Larvae Information Summary for  Pleuronectes platessa
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Main Ref: Russell, F.S. 1976
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm) 7.5 6 6.7  
Preanal L. % TL     35.5  
Place of development planktonic
Larval area North Sea
Yolk-sac ovoid   pigmented Ref:  
Yolk unsegmented Oil globules no oil globule
Rows on tail dorsal + ventral row
Other melanophores on tail tail partly covered with melanophores
Melanophores on head + trunk melanophores on head + trunk
There is a row of melanophores in the region of the stomach.
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 dorsal + ventral row
Other melanophores on tail tail partly covered with melanophores
Melanophores on head + trunk melanophores on head + trunk
Pigmentation late
Rows on tail dorsal + lateral + 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 without melanophores
Pelvics normal (i.e. small or absent)  
A relative absence of melanophores along the dorsal contours of the body persists throughout the growth of the postlarva. The ventral rows of melanophores become even less defined. Larvae settle on the bottom at about 12-14 mm TL (Ref. 92372).
  L 1st feeding Ref. Months of presence of larvae
max 8   Jan Feb Mar Apr
min 7   May Jun Jul Aug
mod 7.5   Sep Oct Nov Dec
Water parameters     Metric characters
Entered by: Papasissi,Christine - 19.10.90
Modified by: Luna,Susan M. - 12.12.12
Checked by: Giovanardi,Otello - 15.02.91
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