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Larvae Information Summary for
Osmerus eperlanus
| Main Ref: | Russell, F.S. 1976 | |||
Yolk-sac larvae
| max | min | mod | Ref. | |
| Length at birth (mm) | 6 | 4.62 | 5.3 | |
| Preanal L. % TL | 74.1 |
| Place of development | planktonic | |||
| Larval area | to be filled | |||
| Yolk-sac | ovoid pigmented | Ref: | ||
| Yolk | unsegmented | Oil globules | one oil globuleanteriorcentralpigmented | |
| Rows on tail | ventral row | |||
| Other melanophores on tail | no other melanophores | |||
| Melanophores on head + trunk | melanophores on trunk | |||
Post larvae
| Striking feature | none | |||
| Striking shape lateral | normal (not striking) | dorsal | ||
| Striking feature | none | |||
| Shape of gut | tube-like | |||
| Gas bladder early | pigmented | late | pigmented | |
| Spinal armature early | no spines | late | no spines | |
| Pigmentation early | ||||
| Rows on tail | ventral row | |||
| Other melanophores on tail | no other melanophores | |||
| Melanophores on head + trunk | melanophores on trunk | |||
| Pigmentation late | ||||
| Rows on tail | ventral row | |||
| Other melanophores on tail | no other melanophores | |||
| Melanophores on head + trunk | melanophores on trunk | |||
| Urostyle region early | pigmented | late | pigmented | |
| Peritoneum | covered with melanophores | |||
| Pectorals | other | |||
| Pelvics | normal (i.e. small or absent) | |||
| L 1st feeding | Ref. | Months of presence of larvae | ||||
| max | 8 | Jan | Feb | Mar | Apr | |
| min | 6 | May | Jun | Jul | Aug | |
| mod | 7 | Sep | Oct | Nov | Dec | |
| Water parameters Metric characters |
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