| FishBase |
Larvae Information Summary for
Syngnathus abaster
| Main Ref: | Bertolini, F., U. D'Ancona, E. Padoa Montalenti, S. Ranzi, L. Sanzo, A. Sparta, E. Tortonese and M. Vialli 1956 | |||
Yolk-sac larvae
| max | min | mod | Ref. | |
| Length at birth (mm) | 23 | 6733 | ||
| Preanal L. % TL | 45 |
| Place of development | attached to parental body | |||
| Larval area | to be filled | |||
| Yolk-sac | Ref: | |||
| Yolk | Oil globules | |||
| Rows on tail | no rows | |||
| Other melanophores on tail | more than two dorso-ventral clusters or bands | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| The base of the dorsal fin shorter than the head. | ||||
Post larvae
| Striking feature | tube-like snout | |||
| Striking shape lateral | eel-like | dorsal | ||
| Striking feature | tube-like snout | |||
| Shape of gut | tube-like | |||
| Gas bladder early | pigmented | late | ||
| Spinal armature early | no spines | late | no spines | |
| Pigmentation early | ||||
| Rows on tail | no rows | |||
| Other melanophores on tail | more than two dorso-ventral clusters or bands | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| Pigmentation late | ||||
| Rows on tail | no rows | |||
| Other melanophores on tail | more than two dorso-ventral clusters or bands | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| Urostyle region early | pigmented | late | pigmented | |
| Peritoneum | covered with melanophores | |||
| Pectorals | normal | |||
| Pelvics | normal (i.e. small or absent) | |||
| Dorsal with 28-32 rays, extending over 7-9 segments, shorter than the head. 3 anal rays, 13-14 pectorals rays, 9-10 caudal rays. Eye comprised 1.5 times in the preorbital space. | ||||
Meristic characters
| max | min | mod | Ref. | |
| Total number of myomeres | 54 | 49 | 52 | |
| Preanal number of myomeres | 17 | 16 | 16 |
| L 1st feeding | Ref. | Months of presence of larvae | ||||
| max | Jan | Feb | Mar | Apr | ||
| min | May | Jun | Jul | Aug | ||
| mod | 23 | Sep | Oct | Nov | Dec | |
| Water parameters Metric characters |
| Back to Search |