No detailed citation.
| Species | Development state | Trait | Primary Data | Secondary Data |
| Leuciscus cephalus | Spawning conditions | Spawning temperature | In various areas: 12-28°C (Müceldi Stream), 15-23°C (Savur Stream), 16-23°C (Aras River), 14-19°C (Oltu Stream) and 16-18°C (Ikizcetepeler Dam Lake) | 20.0 °C |
| Leuciscus cephalus | Female | Intensifying oogenesis activity | During spring (March-May), an obviously rapid growth of gonads occurred until the next spawning. Differences between values according to months, especially Apriln are statistically significant | ['April', 'March', 'May', 'June'] |
| Leuciscus cephalus | Spawning conditions | Spawning season | Spawning occurred between April and May […] Other studies : mainly in May and June, but also as late as September (in Kizilirmak River), or as early as April | ['April', 'September', 'May', 'June'] |