Larvae Summary
Larvae Information Summary for
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Main Ref: Ambrose, D.A. 1996
Yolk-sac larvae
  min max mod Ref.
Length at birth (mm)        
Preanal L. % TL 36 43    
Place of development planktonic
Larval area Northeastern Pacific (California Current region); Northwestern Pacific (Japan)
Yolk-sac       Ref:  
Yolk   Oil globules  
Rows on tail  
Other melanophores on tail  
Post larvae
Striking feature none
Striking shape lateral eel-like dorsal compressed
Striking feature none
Shape of gut spherical or gut loop
Gas bladder   early   late  
Spinal armature   early no spines late no spines
Pigmentation early
Rows on tail no rows
Other melanophores on tail two dorso-ventral clusters or bands
Melanophores on head + trunk melanophores on head + trunk
Pigmentation late
Rows on tail no rows
Other melanophores on tail tail completely covered with melanophores
Melanophores on head + trunk melanophores on head + trunk
Urostyle region   early pigmented late pigmented
Peritoneum with row of melanophores
Pectorals normal without melanophores
Pelvics fin rays only without melanophores
Branchiostegals 8; gut loop formed at < 7.4 mm in the posterior portion of the visceral cavity; 3-4 pigment patches dorsolaterally and 2 ventrolaterally on body; heavy at end of tail. Pigmentation: Preflexion: on fore- and midbrain; lower jaw; dorsolaterally at gut loop; 2 patches ventrally on tail; 3 patches on dorsum; heavy on end of tail. Postflexion: 4 patches on dorsum.
Meristic characters
  min max mod Ref.
Total number of vertebrae 71 79   36413
  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
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