FishBase |
Main Ref: | Scotton, L.N., R.E. Smith, N.S. Smith, K.S. Price and D.P. de Sylva 1973 |
max | min | mod | Ref. | |
Length at birth (mm) | 1.75 | 1.68 | ||
Preanal L. % TL |
Place of development | planktonic | |||
Larval area | Northwestern Atlantic (Delaware Bay) | |||
Yolk-sac | Ref: | |||
Yolk | Oil globules | |||
Rows on tail | ventral row | |||
Other melanophores on tail | no other melanophores | |||
Melanophores on head + trunk | no melanophores on head or trunk | |||
Vent opens at margin of finfold. Pigmentation sparse. Near time of yolk-sac absorption, ventral row of melanophores prominent. |
Striking feature | none | |||
Striking shape lateral | normal (not striking) | dorsal | ||
Striking feature | none | |||
Shape of gut | triangular | |||
Gas bladder early | late | |||
Spinal armature early | no spines | late | no spines | |
Pigmentation early | ||||
Rows on tail | ventral row | |||
Other melanophores on tail | no other melanophores | |||
Melanophores on head + trunk | melanophores on head | |||
Pigmentation late | ||||
Rows on tail | ventral row | |||
Other melanophores on tail | no other melanophores | |||
Melanophores on head + trunk | melanophores on head | |||
Urostyle region early | unpigmented | late | unpigmented | |
Peritoneum | without melanophores | |||
Pectorals | normal without melanophores | |||
Pelvics | normal (i.e. small or absent) without melanophores | |||
Yolk-sac absorbed at about 2.5 mm. Body assuming deep, thin form at about 5-6 mm. Pigmentation: Ventral row of postanal pigment and pigment on top of head. Sequence of fin development: Dorsal (5-6 mm); anal (5-6 mm); caudal (5-6 mm). Fins fully formed at 15.0 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 |
Back to Search |