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Larvae Information Summary for  Triacanthus biaculeatus
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Main Ref: Jeyaseelan, M.J.P. 1998
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm)        
Preanal L. % TL        
Place of development  
Larval area Indo-West Pacific
Yolk-sac       Ref:  
Yolk   Oil globules  
Post larvae
Striking feature other
Striking shape lateral short and/or deep dorsal tadpole-like
Striking feature other
Shape of gut  
Gas bladder   early   late  
Spinal armature   early   late  
At 4 mm, dorsal fin spines 5, of which the 1st spine is very strong and the 2nd spine is relatively very short and thin. Second dorsal fin has more than 22 rays. Anal fin rays 18. Pelvic spines are visible at this stage. Caudal fin is round.
  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: Luna,Susan M. - 28.11.02
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