Gorodilov, Y.N. and Melnikova, E.L. (2006) Embryonic development of the European smelt Osmerus eperlanus eperlanus (L.) (Neva population). Russian Journal of Marine Biology, pp. 173-185
| Species | Development state | Trait | Primary Data | Secondary Data |
| Osmerus eperlanus | Egg | Oocyte diameter | Diameter of the mature oocytes is 0.7-0.8 mm | 0.75 mm |
| Osmerus eperlanus | Egg | Egg size after water-hardening | The diameter of the swollen eggs is 1.0-1.1 mm | 1.05 mm |
| Osmerus eperlanus | Egg | Egg Buoyancy | May stick to different substrates at the bottom of water body | Demersal |
| Osmerus eperlanus | Egg | Egg adhesiveness | After spawning, the outer envelope bursts in the water and becomes sticky | Adhesive |
| Osmerus eperlanus | Egg | Incubation time | Hatching completes at all temperatures: 200 ts, with ts 152 min at 9.5°C, 116 at 10.8°C, 98 at 12°C, 76 at 13.8°C and 48 at 18.3°C, i.e. : 21.1 days [At 9.5°C], 16.1 days [At 10.8°C], 13.6 days [At12.0°C], 10.5 days [At 13.8°C], and 6.7 days [At 18.3°C] | 200.0 days |
| Osmerus eperlanus | Egg | Temperature for incubation | The eggs' incubation was carried out at a constant temperature. For the observations of eggs and larval development, the following temperature regimes were used: 9.5, 10.8, 12.0, 13.8 and 18.3°C | 9.5 °C |
| Osmerus eperlanus | Egg | Degree-days for incubation | 21.1 days [At 9.5°C], 16.1 days [At 10.8°C], 13.6 days [At12.0°C], 10.5 days [At 13.8°C], and 6.7 days [At 18.3°C] | 21.1 °C * day |
| Osmerus eperlanus | Larvae | Initial larval size | L= 5.0-5.3 mm at the beginning of hatching | 5.15 mm |
| Osmerus eperlanus | Female | Absolute fecundity | The usual prolificacity of the smelt of the Neva River is 20000-28000 eggs | 24000.0 thousand eggs |