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Larvae Information Summary for  Bothragonus swanii
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Main Ref: Matarese, A.C., A.W. Kendall, D.M. Blood and M.V. Vinter 1989
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm)     7.5 56049
Preanal L. % TL        
Place of development planktonic
Larval area Central California, 34-38°N, to Gulf of Alaska, 54-60° N
Yolk-sac       Ref:  
Yolk   Oil globules  
PLD: 48 (Ref. 56049).
Post larvae
Striking feature  
Striking shape lateral   dorsal  
Striking feature  
Shape of gut  
Gas bladder   early   late  
Spinal armature   early   late  
Diagnostic characters: large pigmented pectoral fins; body spines develop in flexion larvae; body short and stocky compared with Xeneretmus latifrons. Pigment: upper and lower jaw; dorsal head; anterior gut and body; outer edge of pectoral fin; flexion and postflexion larvae develop several vertical bars on body.
  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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