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Larvae Information Summary for  Fistularia commersonii
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Main Ref: Watson, W. and E.M. Sandknop 1996
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm) 7 5.4    
Preanal L. % TL        
Place of development planktonic
Larval area Northeastern Pacific (California Current Region); Northwestern Pacific (Japan)
Yolk-sac     pigmented Ref:  
Yolk   Oil globules  
Rows on tail dorsal + ventral row
Other melanophores on tail tail partly covered with melanophores
Melanophores on head + trunk melanophores on head + trunk
Pigmentation: scattered dorsally on head and along dorsal margin of trunk and tail; scattered on yolk-sac; dorsolateral series along each side of gut; on ventral margin of gut posteriorly; on ventral margin of tail; scattered proximally on caudal finfold, may extend onto posterior part of anal finfold.
Post larvae
Striking feature tube-like snout
Striking shape lateral eel-like dorsal  
Striking feature tube-like snout
Shape of gut tube-like
Gas bladder   early   late  
Spinal armature   early   late  
Pigmentation early
Rows on tail ventral row
Other melanophores on tail tail partly covered with melanophores
Melanophores on head + trunk melanophores on head + trunk
Rows on tail dorsal row
Other melanophores on tail tail partly covered with melanophores
Melanophores on head + trunk melanophores on head + trunk
Pectorals normal without melanophores
Pelvics fin rays only without melanophores
Myomeres 50-52+31-36=36-82 (most commonly 51+36); dorsal fin rays 14-17, anal fin rays 14-16 (all present by about 25 mm); hypobranchial and basibranchial pigment present by 6-7 mm; compared with F. corneta, more slender, notochord flexion and fin development begin at larger size. Pigmentation: Preflexion-postflexion: on lower part of head (dentary, gular area, preopercular, branchiostegal membrane); on hypobranchial and basibranchials after about 6 mm; on isthmus; dorsolateral and ventral margin series along gut; on ventral margin of tail, extending along elongate central caudal fin rays after about 11 mm; usually some on anal finfold; internally on hindbrain, extending onto midbrain by about 11 mm; on dorsal fin bases by about 16 mm; dorsally on caudal peduncle by about 23 mm. Sequence of fin development: caudal, dorsal and anal, pectorals, pelvics.
Meristic characters
  max min mod Ref.
Total number of myomeres 88 82   36710
  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. - 04.12.00
Modified by: Luna,Susan M. - 24.02.03
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