LAROCHE and RICHARDSON: DEVELOPMENT OF LARVAE AND JUVENILES OF ROCKFISHES 



SEBASTES ENTOMELAS 

 (JORDAN AND GILBERT) 



Literature (Figures 1-3). — The pigment pattern of 

 preextrusionS. entomelas larvae was described by 

 Harling et al.,® including a figure, and Westrheim 

 (1975). Preextrusion larvae, mean 4.8, 5.0 

 mm TL, have a row of usually <16 melano- 

 phores along the ventral body midline which 

 stops short of the anus by at least four 

 myomeres. The gut is pigmented in the vicinity of 



«Harling. W. R., M. S. Smith, and N. A. Webb, 1971. Pre- 

 liminary report on maturity, spawning season, and larval iden- 



tification of rockfishes (Se6astodes I collected during 1970. 

 Res. Board Can., Manuscr. Rep. Ser. 1137, 26 p. 



Fish. 



the anus. Pigment is absent from the dorsum, 

 head, and hypural region. In reared larvae, the 

 number of ventral midline melanophores in- 

 creases to >16 (Westrheim 1975). 



Identification (Tables 1-3; Appendix Table 1). — 

 Fifty-three specimens of S. entomelas (9.9-74.5 

 mm) were selected for the development series from 

 444 larval and juvenile specimens identified. 

 Juveniles were identified using the following com- 

 bination of characters observed in juvenile and 

 adult specimens examined: 



Gill rakers = 34-39 

 Lateral line pores = 52-56 



9.9 mm 



6.2mm 



Figure l. — Pelagic larvae ofSebastes entomelas. 



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