FishBase |
Main Ref: | Russell, F.S. 1976 |
max | min | mod | Ref. | |
Length at birth (mm) | 4 | 2.7 | 3.6 | |
Preanal L. % TL | 46.7 | 44.4 | 45.5 |
Place of development | planktonic | |||
Larval area | Northeast Atlantic | |||
Yolk-sac | ovoid unpigmented | Ref: | ||
Yolk | unsegmented | Oil globules | no oil globule | |
Rows on tail | dorsal + ventral row | |||
Other melanophores on tail | tail partly covered with melanophores | |||
Melanophores on head + trunk | melanophores on head + trunk | |||
Striking feature | none | |||
Striking shape lateral | normal (not striking) | dorsal | compressed | |
Striking feature | none | |||
Shape of gut | spherical or gut loop | |||
Gas bladder early | invisible | late | invisible | |
Spinal armature early | no spines | late | no spines | |
Pigmentation early | ||||
Rows on tail | no rows | |||
Other melanophores on tail | tail with single melanophore | |||
Melanophores on head + trunk | melanophores on head + trunk | |||
Rows on tail | no rows | |||
Other melanophores on tail | tail with single melanophore | |||
Melanophores on head + trunk | melanophores on head + trunk | |||
Peritoneum | covered with melanophores | |||
Pectorals | normal with marginal melanophores | |||
Pelvics | normal (i.e. small or absent) | |||
Two diagnostic characters: marginal melanophores on the pectoral fins, and regular spaced melanophores in the rows along the ventral contour on either side of the body. At a length of about 7.0 mm the tail becomes heterocercal. |
L 1st feeding | Ref. | Months of presence of larvae | ||||
max | 4.3 | Jan | Feb | Mar | Apr | |
min | 3.8 | May | Jun | Jul | Aug | |
mod | Sep | Oct | Nov | Dec |
Water parameters Metric characters |
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