Spivak, E.G. and Pinus, G.N. and Sentishcheva, S.V. (1979) The Age Composition of the Spawning Population and the Characteristics of the Spawners Size-Age Structure and Fecundity of the Roach, Rutilus rutilus Spawning in Kakhovka Reservoir. Journal of Ichthyology, pp. 75-80
| Species | Development state | Trait | Primary Data | Secondary Data |
| Rutilus rutilus | Female | Age at sexual maturity | 3-4 : minimal age (with n=3232) | 3.5 year |
| Rutilus rutilus | Female | Length at sexual maturity | 19.4 minimal size (n=3232) and mean=25.8 | 19.4 cm |
| Rutilus rutilus | Female | Weight at sexual maturity | 0.175 minimal weight (n=3232) and mean=0.524 | 0.17 kg |
| Rutilus rutilus | Female | Relative fecundity | 95-187 | 141.0 thousand eggs/kg |
| Rutilus rutilus | Female | Absolute fecundity | 6.8-210 | 108.4 thousand eggs |
| Rutilus rutilus | Male | Age at sexual maturity | 3 minimal age (with n=4543) | 3.0 years |
| Rutilus rutilus | Male | Length at sexual maturity | 17.5 minimal length (n=4543) and mean=24 | 17.5 cm |
| Rutilus rutilus | Male | Weight at sexual maturity | 0.098 minimal weight (n=4543) and mean=0.319 | 0.1 kg |