No detailed citation.
| Species | Development state | Trait | Primary Data | Secondary Data |
| Silurus glanis | Egg | Egg adhesiveness | Adhesive [This adhesive membrane ensures the development of the released eggs attached to substrate] | Adhesive |
| Silurus glanis | Male | Onset of spermatogenesis | End of July-August | ['August', 'July'] |
| Silurus glanis | Male | Maximum GSI value | May reach 0.94%, but mean is 0.38% | 0.94 percent |
| Silurus glanis | Male | Main spermatogenesis activity | September | ['September'] |
| Silurus glanis | Male | Resting period | 0.12-0.25% at the end of July [June-July] | 0.185 months |
| Silurus glanis | Male | Spermatogenesis duration | 2 months [July to September] | 2.0 months |