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Larvae Information Summary for  Thyrsites atun
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Main Ref: Neira, F.J., A.G. Miskiewicz and T. Trnski 1998
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm) 5.2      
Preanal L. % TL 73 61    
Place of development planktonic
Larval area coastal waters of Tasmania
Yolk-sac       Ref:  
Yolk   Oil globules  
Post larvae
Striking feature  
Striking shape lateral   dorsal  
Striking feature  
Shape of gut  
Gas bladder   early   late  
Spinal armature   early   late  
Diagnostic characters: up to 4 posterior preopercular spines, moderate and smooth; dorsal-fin spines long and serrate laterally from flexion stage; pelvic-fin spine strongly serrate ventrally and medially from flexion stage; up to 8 melanophores along ventral midline of tail, anteriormost becoming internal during flexion stage. Sequence of fin formation: caudal (<5.2-10.8 mm); pelvi c(<5.2-10.8 mm); dorsal (5.3-10.8 mm); anal (5.5-10.8 mm); pectoral (7.8-10.8 mm). Larvae settle on the bottom at length greater than 15.7 mm BL.
Meristic characters
  max min mod Ref.
Total number of myomeres 36 34   33616
Preanal number of myomeres 17 7   33616
  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. - 07.08.00
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