Main Ref: | Pinder, A.C. 2001 |
min | max | mod | Ref. | |
Length at birth (mm) | 4.5 | 41678 | ||
Preanal L. % TL |
Place of development | in close association with substrate | |||
Larval area | Western Europe (British Isles) | |||
Yolk-sac | Ref: | |||
Yolk | Oil globules | no oil globule | ||
Melanophores on head + trunk | melanophores on trunk | |||
Yolk is absorbed at 6.0 mm. Pigmentation: Pigment present on the lateral line at >5.5 mm; on the dorsal line at >5.5 mm. |
Striking feature | ||||
Striking shape lateral | dorsal | |||
Striking feature | ||||
Shape of gut | ||||
Gas bladder early | late | |||
Spinal armature early | late |
L 1st feeding | Ref. | Months of presence of larvae < >Ref. | ||||
max | Jan | Feb | Mar | Apr | ||
min | May | Jun | Jul | Aug | ||
mod | Sep | Oct | Nov | Dec |
Water parameters Metric characters |