Mann, R.H.K. (1973) Observations on the age, growth, reproduction and food of the roach Rutilus rutilus (L.) in two rivers. , pp.
| Species | Development state | Trait | Primary Data | Secondary Data |
| Rutilus rutilus | Female | Age at sexual maturity | 3-4 [Sex specified] | 3.5 year |
| Rutilus rutilus | Female | Onset of oogenesis | Starts in September and then increase regularly until May | ['May', 'September'] |
| Rutilus rutilus | Female | Intensifying oogenesis activity | Not a true main activity because there is a regular increase | No data |
| Rutilus rutilus | Female | Maximum GSI value | 14-16 [Just prior spawning in May] | 15.0 percent |
| Rutilus rutilus | Female | Oogenesis duration | 8-9 [From September until mid-May] | 8.5 months |
| Rutilus rutilus | Female | Resting period | 3 [From June to September] | 3.0 months |
| Rutilus rutilus | Female | Resting period | About 1 [June, July until Mid-August] | 1.0 months |
| Rutilus rutilus | Male | Age at sexual maturity | 3-4 [Sex specified] | 3.5 years |
| Rutilus rutilus | Male | Onset of spermatogenesis | September-October and contiue to increase regularly | ['September', 'October'] |
| Rutilus rutilus | Male | Main spermatogenesis activity | February-Beginning of March | ['February', 'March'] |
| Rutilus rutilus | Male | Maximum GSI value | 8-9 [March] | 8.5 percent |
| Rutilus rutilus | Male | Resting period | About 1 [June, July until August] | 1.0 months |
| Rutilus rutilus | Spawning conditions | Spawning season | Latter half of May | ['May'] |