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Larvae Information Summary for
Sebastes levis
| Main Ref: | Moser, H.G. 1996 | |||
Yolk-sac larvae
| max | min | mod | Ref. | |
| Length at birth (mm) | 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 | 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 | no rows | |||
| Other melanophores on tail | no other melanophores | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| Rows on tail | no rows | |||
| Other melanophores on tail | no other melanophores | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| Pectorals | other covered with melanophores | |||
| Pelvics | normal (i.e. small or absent) with melanophores | |||
| Pectoral fins elongate and fan-shaped with distinctive pigmentation; no dorsal midline pigment; distinct pattern of bars in pelagic juveniles. Pigmentation: Preflexion: initially, dorsolaterally on gut, patch over mid- and hindbrain, on anterior margin of lower jaw, covering pectoral fin blade (heaviest at margin), 13-22 in postanal ventral series (from 2nd to 14th-17th postanal myomere); later in stage, several ventrally on gut, on pectoral fin blade (concentrated at margin)). Flexion: on nape, forebrain, snout near upper jaw, and on pelvic fins; on pectoral fins spreading from margin of blade toward base. Postflexion: on upper opercular region and posteriorly on upper head; on dorsum along first dorsal and second dorsal fins; late in stage, saddles begin to extend ventrad from dorsum, on first dorsal and second dorsal and anal fin membranes. Pelagic juvenile: saddle at dorsal fin origin; 2 bars below first dorsal fin, 1 below second dorsal fin, and 1 at caudal peduncle. Sequence of fin development: pectorals, caudal, 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 |
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