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Larvae Information Summary for  Nansenia groenlandica
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Main Ref: Fahay, M. 1983
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm)        
Preanal L. % TL        
Place of development planktonic
Larval area to be filled
Yolk-sac       Ref:  
Yolk   Oil globules  
Rows on tail  
Other melanophores on tail  
Post larvae
Striking feature  
Striking shape lateral normal (not striking) dorsal  
Striking feature  
Shape of gut tube-like
Gas bladder   early invisible late invisible
Spinal armature   early no spines late no spines
Pigmentation early
Rows on tail no rows
Other melanophores on tail tail with single melanophore
Melanophores on head + trunk melanophores on trunk
Pigmentation late
Rows on tail no rows
Other melanophores on tail tail with single melanophore
Melanophores on head + trunk melanophores on trunk
Urostyle region   early pigmented late pigmented
Peritoneum without melanophores
Pectorals normal  
Pelvics normal (i.e. small or absent)  
Oblong eye in early larvae. Small terminal mouth, dorsal fin origin anterior to pelvic fins, wide finfold. Fairly slender shape of body, with long thick gut. Low number of branchiostegal rays, (3-4).
  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
Entered by: Froese,Rainer - 19.10.90
Modified by: Luna,Susan M. - 28.02.91
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