Larvae Information Summary for Sebastes mystinus
Show available picture(s) for

Main Ref: Moser, H.G. 1996
Yolk-sac larvae
  min max mod Ref.
Length at birth (mm)     3.8 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  
Extrusion larvae: short series along ventral body.
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 + ventral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on head + trunk
Rows on tail lateral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on head + trunk
Pectorals normal with rows of melanophores
Pelvics normal (i.e. small or absent) with melanophores
In preflexion larvae, relatively wide space (5-6 myomeres) separating anus and ventral pigment series, short pigment series dorsally on tail, and pectoral pigmentation; postflexion larvae similar to those of S. melanops, S. flavidus, and S. entomelas but differ from them in having a unique combination of 16 dorsal soft rays, 9 anal soft rays, and 18 pectoral fin rays; pelagic juveniles have broad bars and large blotch on first dorsal fin. Pigmentation: Pigmentation: Preflexion: initially, dorsally and ventrally on gut, 1 anterior to anus, and about 15 in series on ventral margin of tail (from postanal myomere 5-6 through 16-18); at about 5.0 mm, on midbrain, nape, otic region, lower jaw, laterally on cleithrum, short series on dorsal margin of tail (from postanal myomere 9-10 through 18), and on pectoral fin blade (heavy on distal margin of blade). Postflexion: by 12.8 mm, heavy on brain and opercle, some on snout, upper jaw, on dorsum (heaviest at second dorsal fin), ventrally on caudal peduncle, posteriorly on anal fin base, short series on lateral midline at caudal peduncle-hypural region, on posterior hypural margin, scattered on pectoral fin blade, and proximally on pelvic fins; by end of stage, postorbital patch, heavy on top of head and entire dorsum, beginning to cover epaxial region of body, and streak at lateral midline extending forward to trunk. Pelagic juvenile: heavy dorsally on head; 2 diagonal streaks on cheek; broad bars below first dorsal, second dorsal, and at caudal peduncle; first dorsal fin covered and black blotch between 7th-12th spines; patches proximally on second dorsal fin.
  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
Comments & Corrections

php script by kbanasihan, 09/07/10 ,  last modified by sortiz, 09/08/17