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Larvae Information Summary for
Prionotus carolinus
| Main Ref: | Scotton, L.N., R.E. Smith, N.S. Smith, K.S. Price and D.P. de Sylva 1973 | |||
Yolk-sac larvae
| max | min | mod | Ref. | |
| Length at birth (mm) | 2.8 | 39467 | ||
| Preanal L. % TL |
| Place of development | planktonic | |||
| Larval area | Northwestern Atlantic (Delaware Bay) | |||
| Yolk-sac | Ref: | |||
| Yolk | Oil globules | |||
| Rows on tail | no rows | |||
| Other melanophores on tail | two dorso-ventral clusters or bands | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| Pectoral fins are prominent. Vent just posterior to yolk-sac. Pigmentation: Black and yellow pigment scattered about head and trunk; two transverse yellow cross-bands, one close behind pectoral fins, the other midway between vent and tip of tail. | ||||
Post larvae
| Striking feature | other | |||
| Striking shape lateral | normal (not striking) | dorsal | ||
| Striking feature | other | |||
| Shape of gut | triangular | |||
| Gas bladder early | late | |||
| Spinal armature early | late | |||
| Pigmentation early | ||||
| Rows on tail | no rows | |||
| Other melanophores on tail | two dorso-ventral clusters or bands | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| Pigmentation late | ||||
| Rows on tail | no rows | |||
| Other melanophores on tail | two dorso-ventral clusters or bands | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| Urostyle region early | unpigmented | late | unpigmented | |
| Pectorals | strikingly large | |||
| Pelvics | normal (i.e. small or absent) | |||
| Yolk-sac absorbed by 3-3.4 mm. At 25-30 mm, young show most of the distinctive characters of the adult. Pigmentation: Yellow markings not prominent at 3-3.4 mm. At 25-30 mm, darker, with transverse bands. Sequence of fin development: Dorsal, anal, and caudal fin rays well differentiated (8-10 mm). | ||||
| 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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