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Larvae Information Summary for  Sebastes diploproa
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Main Ref: Moser, H.G. 1996
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm) 5.2 4.4    
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  
Extrusion larvae: dorsolaterally on gut, 17-21 in postanal ventral midline series (from 4th or 5th to 16th-17th postanal myomere), and 1 or more at hypural.
Post larvae
Striking feature duck-billed shape of head
Striking shape lateral normal (not striking) dorsal  
Striking feature duck-billed shape of head
Shape of gut triangular
Gas bladder   early   late  
Spinal armature   early several different spines late several different spines
Pigmentation early
Rows on tail dorsal row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on head + trunk
Pigmentation late
Rows on tail dorsal + lateral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on head + trunk
Urostyle region   early pigmented late pigmented
Pectorals normal with rows of melanophores
Pelvics normal (i.e. small or absent) with melanophores
No dorsal midline pigment in preflexion stage; hypural melanophore; distinctive sequence of pigment augmentation in larvae and pelagic juveniles; head spines relatively strong in flexion and postflexion stages. Pigmentation: Preflexion: initially, postanal ventral series reduced to 12-14, patch above midbrain, 1 to several at nape, anteriorly on lower jaw, scattered on pectoral fin blade (except distal margin), and on inner surface of pectoral fin base; by 5.0 mm, dorsolaterally on hindbrain, embedded anterior to gut, 1 to several in snout near jaw; above forebrain; on dorsal midline at caudal peduncle. Postflexion: increasing dorsally on anterior trunk along entire dorsum, laterally at caudal peduncle, on snout, posteriorly on head, on opercle, and on pelvic fins; head and body become solidly pigmented. Transformation-pelagic juvenile: second dorsal and anal fins with solid patch and first dorsal variegated. Sequence of fin development: pectorals, caudal, dorsal and anal, 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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