FishBase |
Main Ref: | Durand, J.R. 1978 |
max | min | mod | Ref. | |
Length at birth (mm) | 3.5 | 2759 | ||
Preanal L. % TL |
Place of development | in close association with substrate | |||
Larval area | to be filled | |||
Yolk-sac | Ref: | |||
Yolk | Oil globules | |||
Rows on tail | ||||
Other melanophores on tail | ||||
Primitive, globular vittelus, rectilinear disappears progressively. Day 2-3: very active, characteristic rapid undulations. Day 3: Non-rayed pectorals appear. Day 4: horizontal swimming, vittelus very reduced, swim bladder appear, well formed with organs for predatory life at 5.6 mm LT. |
Striking feature | none | |||
Striking shape lateral | normal (not striking) | dorsal | normal (not striking) | |
Striking feature | none | |||
Shape of gut | elongated | |||
Gas bladder early | visible | late | invisible | |
Spinal armature early | no spines | late | several different spines | |
Pigmentation early | ||||
Rows on tail | no rows | |||
Other melanophores on tail | no other melanophores | |||
Melanophores on head + trunk | melanophores on head + trunk | |||
Pectorals | normal | |||
Pelvics | normal (i.e. small or absent) | |||
Day 5: intestinal tract appears. Days 5-12: less drastic changes, general appearance stays the same. Days 12-23: caudal, dorsal and anal appear. Days 20-30: ventral and adipose appear. Days 15-26: anal rays appear. Days 12-24: tail skeletal structure (urostyle, hypural, and caudal rays) appear. Month 1: fish resemble adult, but have a primordial fin residue along the belly, to anus |
L 1st feeding | Ref. | Months of presence of larvae | ||||
max | Jan | Feb | Mar | Apr | ||
min | May | Jun | Jul | Aug | ||
mod | 5.6 | 2759 | Sep | Oct | Nov | Dec |
Water parameters Metric characters |
|
Back to Search |
|
Sign our Guest Book |