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Larvae Information Summary for  Sebastes auriculatus
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Main Ref: Moser, H.G. 1996
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm)     5.5 36715
Preanal L. % TL        
Place of development planktonic
Larval area California Current region
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 several different spines late several different spines
Pigmentation early
Rows on tail dorsal + ventral + lateral 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 one dorso-ventral cluster or band
Melanophores on head + trunk melanophores on head + trunk
Pectorals normal melanophores at fin base
Pelvics normal (i.e. small or absent) without melanophores
In preflexion larvae, extensive pigmentation on head and dorsal and ventral margins of tail (series on dorsum limited to tail region in contrast to S. caurinus where it extends forward to nape); preopercular spines become heavily pigmented (sparsely pigmented in S. caurinus); cheek becomes heavily pigmented in flexion and postflexion stages (not in S. caurinus); upper and lower patches on opercle vs. single central patch in S. caurinus. Pigmentation: Preflexion: initially, 3-10 above midbrain, 0-8 above hindbrain, 0-3 at otic region, at angular (some specimens), at lower jaw tip (most specimens), dorsally and ventrally on gut, 1 anterior to and 1 posterior to anus, at cleithral symphysis, 35-38 in series on ventral margin of tail (from postanal myomere 1 to 15), 9-22 in series on dorsal margin of tail (typically from postanal myomere 3 to 14), and 1 to several laterally on the tail; by end of stage, laterally on lower jaw, other head loci augmented, some laterally on gut, at tip of snout, 1 at hypural region, and few on pectoral fin base and blade. Flexion: series on dorsal margin of trunk (beginning on 3rd-5th myomere), becoming continuous with series above tail. Postflexion: more on head loci; on upper and lower opercular patch; on pectoral fin base (heavy) and blade (moderate); gut covered; diffuse bar on tail. Juvenile: heavy on upper half of head; large patch on opercle; heavy on dorsum; concentrated on myomeres; pale on ventrum. Sequence of fin development: caudal, pectorals, dorsal and anal and pelvics. Also Ref. 34817.
  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. - 21.02.00
Modified by: Luna,Susan M. - 13.03.01
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