Rosecchi, E. and Kestemont, P. (2001) Le goujon Gobio gobio (Linné, 1766)., pp. 204-205
| Species | Development state | Trait | Primary Data | Secondary Data |
| Gobio gobio | Egg | Oocyte diameter | 1.126 [Mean egg size, not specified] | 1.13 mm |
| Gobio gobio | Female | Age at sexual maturity | 1 [Bot sex] | 1.0 year |
| Gobio gobio | Female | Length at sexual maturity | 5.5 | 5.5 cm |
| Gobio gobio | Female | Intensifying oogenesis activity | April [From 6.3 in March to 17.6 in April] | ['March', 'April'] |
| Gobio gobio | Female | Maximum GSI value | 17.1 [April, May] | 17.1 percent |
| Gobio gobio | Male | Age at sexual maturity | 1 [Bot sex] | 1.0 years |
| Gobio gobio | Male | Maximum GSI value | 2.3 [During the breeding season] | 2.3 percent |
| Gobio gobio | Spawning conditions | Spawning season | April-July | ['April', 'July'] |
| Pseudorasbora parva | Egg | Oocyte diameter | 1.18 | 1.18 mm |
| Pseudorasbora parva | Female | Length at sexual maturity | 7.5 | 7.5 cm |
| Pseudorasbora parva | Female | Maximum GSI value | 27.9 [May] | 27.9 percent |
| Pseudorasbora parva | Male | Age at sexual maturity | 1 [Both sex] | 1.0 years |
| Pseudorasbora parva | Male | Maximum GSI value | 2.3 [May] | 2.3 percent |
| Pseudorasbora parva | Spawning conditions | Spawning season | April-July | ['April', 'July'] |
| Pseudorasbora parva | Spawning conditions | Spawning period duration | 10-12 | 11.0 weeks |
| Pseudorasbora parva | Spawning conditions | Spawning release | Multiple | Multiple |
| Rhodeus sericeus | Female | Age at sexual maturity | 1 [Both sex] | 1.0 year |
| Rhodeus sericeus | Male | Age at sexual maturity | 1 [Both sex] | 1.0 years |