| FishBase |
Larvae Information Summary for
Anoplogaster cornuta
| Main Ref: | Watson, W. 1996 | |||
Yolk-sac larvae
| max | min | mod | Ref. | |
| Length at birth (mm) | ||||
| Preanal L. % TL |
| Place of development | planktonic | |||
| Larval area | Northeastern Pacific (California Current region); Northwest Pacific (Japan) | |||
| Yolk-sac | Ref: | |||
| Yolk | Oil globules | |||
| Rows on tail | ||||
| Other melanophores on tail | ||||
Post larvae
| Striking feature | other | |||
| Striking shape lateral | short and/or deep | dorsal | ||
| Striking feature | other | |||
| 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 | |||
| Pigmentation late | ||||
| Rows on tail | ventral + lateral row | |||
| Other melanophores on tail | no other melanophores | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| Urostyle region early | unpigmented | late | pigmented | |
| Pectorals | normal without melanophores | |||
| Pelvics | normal (i.e. small or absent) without melanophores | |||
| Prominent parietal and preopercular spines that become relatively enormous from flexion through transformation stages (about 4.5-10 mm); dorsal fin rays usually 18 and anal fin rays usually 8 (full complements present by 4 mm); long preanal length; large head; deep body. for juveniles: increase in dark pigment; reduction of spines. Pigmentation: Preflexion-postflexion: light to heavy over midbrain area, becoming consistently heavy by about 4.5 mm; none to few on forebrain, becoming light to moderate by 4.6 mm; on preopercle, spreading over most of gill cover by 5.2 mm; externally over trunk myomeres, spreading onto tail, primarily ventrolaterally, after 4.6 mm; internally over notochord anteriorly, spreading caudad to level of dorsal fin insertion by 5.2 mm; heavy over upper half of gut, spreading ventrad to surround all but ventral midline by 5.2 mm; present or absent on pectoral fin base. Transformation: increasing on head, gut, trunk and tail; black patch forms on ventrum just anterior to pelvic fin bases. Sequence of fin development: dorsal and anal and pectorals, caudal, pelvics. | ||||
| 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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