FishBase |
Main Ref: | Russell, F.S. 1976 |
max | min | mod | Ref. | |
Length at birth (mm) | 3 | 2.7 | 2.85 | |
Preanal L. % TL |
Place of development | planktonic | |||
Larval area | to be filled | |||
Yolk-sac | Ref: | |||
Yolk | Oil globules | |||
Rows on tail | dorsal + ventral row | |||
Other melanophores on tail | no other melanophores | |||
Melanophores on head + trunk | melanophores on head | |||
Chromatophores on the head and lower jaw, and a large chromatophore in the region of the otocyst. There is continuous ventral pigmentation from throat to tail. |
Striking feature | none | |||
Striking shape lateral | normal (not striking) | dorsal | ||
Striking feature | none | |||
Shape of gut | elongated | |||
Gas bladder early | pigmented | late | pigmented | |
Spinal armature early | no spines | late | no spines | |
Pigmentation early | ||||
Rows on tail | dorsal + ventral row | |||
Other melanophores on tail | no other melanophores | |||
Melanophores on head + trunk | melanophores on head + trunk | |||
Pigmentation late | ||||
Rows on tail | ventral 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 | |||
Pelvics | fin rays only | |||
There is always a fairly large chromatophore behind and above the anus, usually absent in P. norvegicus. |
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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