FishBase |
Main Ref: | Darcy, G.H. 1983 |
max | min | mod | Ref. | |
Length at birth (mm) | 1.5 | 39467 | ||
Preanal L. % TL |
Place of development | planktonic | |||
Larval area | Northwestern Atlantic | |||
Yolk-sac | spherical pigmented | Ref: | ||
Yolk | Oil globules | one oil globuleanteriorventralpigmented | ||
Rows on tail | no rows | |||
Other melanophores on tail | two dorso-ventral clusters or bands | |||
Melanophores on head + trunk | no melanophores on head or trunk | |||
No prominent pigmentation. At about 2.5-3.0 mm, some specimens have pigment spots dorso-ventrally above the vent and at mid-caudal length. |
Striking feature | lower jaw strongly projecting | |||
Striking shape lateral | normal (not striking) | dorsal | ||
Striking feature | lower jaw strongly projecting | |||
Shape of gut | elongated | |||
Gas bladder early | late | |||
Spinal armature early | no spines | late | other spines | |
Pigmentation early | ||||
Rows on tail | no rows | |||
Other melanophores on tail | no other melanophores | |||
Melanophores on head + trunk | no melanophores on head or trunk | |||
Pigmentation late | ||||
Rows on tail | dorsal + lateral row | |||
Other melanophores on tail | no other melanophores | |||
Melanophores on head + trunk | melanophores on head + trunk | |||
Urostyle region early | unpigmented | late | unpigmented | |
Peritoneum | without melanophores | |||
Pectorals | normal without melanophores | |||
Pelvics | normal (i.e. small or absent) without melanophores | |||
Preserved specimens greater than 3 mm show no pigment and no yolk; vent located in advance of midbody length. At about 5 mm, the caudal fin becomes evident. At 15 mm, a lateral band of dark pigment forms; also pigment on head and dorsal portion of body. Sequence of fin development: caudal (5 mm); dorsal and anal (6.7 mm); soft dorsal, anal, and caudal fairly complete (10 mm); spinous dorsal (11 mm); 10 well developed spines (17 mm). |
L 1st feeding | Ref. |
Months of presence of larvae
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max | Jan | Feb | Mar | Apr | ||
min | May | Jun | Jul | Aug | ||
mod | Sep | Oct | Nov | Dec |
Water parameters Metric characters |
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