Lenhardt, M. and Cakic, P. (2002) Seasonal reproductive cycle of pike, Esox lucius L., from the river Danube. Journal of Applied Ichthyology [J. Appl. Ichthyol./Z. Angew. Ichthyol.]., pp. 7-13
| Species | Development state | Trait | Primary Data | Secondary Data |
| Esox masquinongy | Spawning conditions | Spawning release | Fractional spawner | Fractional |
| Esox lucius | Female | Relative fecundity | 40.4 ± 12.5 | 40.4 thousand eggs/kg |
| Esox lucius | Female | Absolute fecundity | 0.524-123.896 | 62.21 thousand eggs |
| Esox lucius | Female | Onset of oogenesis | The sudden enlargement of ooctytes begins in August and is particularly intensive during September, October and November | ['August', 'September', 'October', 'November'] |
| Esox lucius | Female | Resting period | February/April (spawning period) until July | 4.0 months |
| Esox lucius | Male | Onset of spermatogenesis | Developing stage starts in September | ['September'] |
| Esox lucius | Male | Main spermatogenesis activity | October, then the mature phase lasts from December until the spawn | ['October', 'December'] |
| Esox lucius | Male | Spermatogenesis duration | The developing stage and active spermatogenesis last from September until the end of November | 3.0 months |
| Esox lucius | Male | Resting period | The resting period last from June until the end of August | 3.0 months |
| Esox lucius | Spawning conditions | Spawning season | First half of March | ['March'] |
| Esox lucius | Spawning conditions | Spawning temperature | 5.5-9.8 | 7.65 °C |
| Esox lucius | Spawning conditions | Spawning release | Once a year | Total |