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Larvae Information Summary for  Rhabdosargus sarba
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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) 3      
Preanal L. % TL 59 42    
Place of development planktonic
Larval area Southwestern Pacific: Richmond River (near Yamba), Macquarie and Tuggerah lakes (NSW); Northwestern Pacific (Japan)
Yolk-sac       Ref:  
Yolk   Oil globules  
Rows on tail  
Other melanophores on tail  
Post larvae
Striking feature none
Striking shape lateral normal (not striking) dorsal  
Striking feature none
Shape of gut triangular
Gas bladder   early   late  
Spinal armature   early opercular spines only late several different spines
Pigmentation early
Rows on tail ventral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on head
Pigmentation late
Rows on tail dorsal + ventral row
Other melanophores on tail one dorso-ventral cluster or band
Melanophores on head + trunk melanophores on head + trunk
Urostyle region   early pigmented late pigmented
Peritoneum with row of melanophores
Pectorals normal  
Pelvics normal (i.e. small or absent)  
Small anterior and posterior preopercular spines; spine at angle moderate; posterior preopercular spines remain in postflexion larvae; 1-2 small supracleithral spines in postflexion larvae; internal melanophore under hindbrain; 2 large melanophores ventrally on gut, up to 4 from flexion stage; 408 melanophores under notochord tip. Sequence of fin formation: caudal (3.5-3.2 mm); dorsal (4.9-9.5 mm); anal (4.9-9.5 mm); pectoral (6.2-9.1 mm); pelvic (6.2-9.8 mm). Larvae settle at the bottom at 10.5-12.5 mm BL.
Meristic characters
  max min mod Ref.
Total number of myomeres 25 24   33616
Preanal number of myomeres 10 7   33616
  L 1st feeding Ref. Months of presence of larvae    Ref. 
max     Jan Feb Mar Apr
min   May Jun Jul Aug
mod     Sep Oct Nov Dec
Water parameters     Metric characters
Entered by: Luna,Susan M. - 04.08.00
Modified by: Luna,Susan M. - 27.03.03
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