FishBase |
Main Ref: | Jones, P.W., F.D. Martin and J.D. Hardy Jr. 1978 |
max | min | mod | Ref. | |
Length at birth (mm) | 7.9 | 5 | 7.2 | 4639 |
Preanal L. % TL |
Place of development | in close association with substrate | |||
Larval area | Mid-Atlantic Bight | |||
Yolk-sac | ovoid pigmented | Ref: | ||
Yolk | Oil globules | |||
Rows on tail | ventral row | |||
Other melanophores on tail | ||||
Melanophores on head + trunk | melanophores on head + trunk | |||
Duration of stage: 6-8 days. Pre-anal myomeres 30-34 by 3rd day. Head slightly deflected over yolk at hatching, straightened by 5th day at about 10.0 mm. Yolk more or less oval at hatching, 1/2 absorbed by 3rd day, or by 8.5 mm. Mouth open by about 8.0 mm. Gas bladder visible on 5th day at about 10 mm. Incipient rays in caudal by 9.0-10.0 mm. Pectoral buds present at hatching, flattened by 2nd day or about 8.0 mm, fan-shaped and with incipient rays by 3rd day or 9.1 mm. Notochord granular at 9.0 mm. Pigmentation: Newly hatched live specimens with dorsal finfold and body chartreuse; dark brown chromatophores scattered over head, dorsolateral region of yolk, along gut, and beneath tail. Pigment increased on yolk and head by 2nd day; extended to ventral region of yolk and increased caudally by 3rd day; eye black at about 10.0 mm. |
Striking feature | none | |||
Striking shape lateral | normal (not striking) | dorsal | tadpole-like | |
Striking feature | none | |||
Shape of gut | ||||
Gas bladder early | visible | late | ||
Spinal armature early | no spines | late | no spines | |
Pigmentation early | ||||
Rows on tail | no rows | |||
Other melanophores on tail | no other melanophores | |||
Melanophores on head + trunk | melanophores on head | |||
Rows on tail | no rows | |||
Other melanophores on tail | no other melanophores | |||
Melanophores on head + trunk | melanophores on head | |||
Pectorals | normal without melanophores | |||
Pelvics | normal (i.e. small or absent) without melanophores | |||
Snout becoming elongate at beginning of stage; lower jaw definietely longer than upper; eye extended into dorsal profile by 7th day or at about 10-11 mm; choroid fissure visible and auditory vesicles elongate at 11.5 mm. Anlage of dorsal visible at about 14 mm and that of anal at about 10-11.8 mm; pectoral with incipient rays at 11.5 mm; urostyle straight to at least about 14 mm. Pigmentation: A conspicuous band of pigment through eye at about 14 mm. |
max | min | mod | Ref. | |
Total number of myomeres | 54 | 53 | 4639 |
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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