Penaz, M. and Sterba, O. (1969) Notes on the incubation period, growth and mortality of the chub, Leuciscus cephalus (Linné, 1758), in the early life-history stages. Acta Soc. Zool. Bohemoslov, pp. 56-70
| Species | Development state | Trait | Primary Data | Secondary Data |
| Leuciscus cephalus | Egg | Egg Buoyancy | Stuck to the bottom of the box | Demersal |
| Leuciscus cephalus | Egg | Egg adhesiveness | Stuck to the bottom of the box | Adhesive |
| Leuciscus cephalus | Egg | Incubation time | Middle time of incubation was either 170.3 or 74.4, both at 18°C [In other studies described as 97 hours at 18°C] | 170.3 days |
| Leuciscus cephalus | Egg | Temperature for incubation | The whole process of incubation was effected at the constant temperature of water 18°C | 18.0 °C |
| Leuciscus cephalus | Egg | Degree-days for incubation | Middle day degrees of inducation either 80.4 or 56.5, both at 18°C [in other studies described as 80.91 DD at 16.7°C] | 80.4 °C * day |
| Leuciscus cephalus | Larvae | Initial larval size | The size of hatched embryos ranged from a mean of 6.09 for the first experiment and 5.31 mm for the second | 5.31 mm |