Pimpicka, E. (1989) Histological analysis of the ovaries in tench (Tina tina L.) from Lake Drweckie. Acta Ichthyologica et Piscatoria [ACTA ICHTHYOL. PISC.]., pp. 75-94
| Species | Development state | Trait | Primary Data | Secondary Data |
| Tinca tinca | Female | Oocyte development | Asynchronic continuous growth of oocytes during the spawning season | Asynchronous |
| Tinca tinca | Female | Onset of oogenesis | Vitellogenesis commenced in May. Its beginning was determined by water temperature (>10°C) | ['May'] |
| Tinca tinca | Female | Oogenesis duration | The shortest vitellogenesis for 21-32 days | 26.5 months |
| Tinca tinca | Female | Resting period | Period of restoration (August) and rest (since September till the end of April) lasted in tench from Lake Drweckie for 9 months. In this period all ovaries were in stage VI/II-III or VI/III, and then in stage III of maturity. Oocyte resorption was observed throughout the year. it was most intensive during fish production, especially in 1979 when water temperature showed considerable variations. | 9.0 months |
| Tinca tinca | Male | Onset of spermatogenesis | Changes in the ovaries take place in the ovaries were initiated in April, i.e. at the time of intensive vitellogenesis | ['April'] |
| Tinca tinca | Male | Main spermatogenesis activity | Vitellogenesis commenced in May. In Kiev reseroivr vitellogenesis commenced in May in all tench females. In a fish pond in Golyszk, yolk accumulated in the oocytes as early as February and a little later (march) in Lake Dgal Wielki | ['February', 'May'] |
| Tinca tinca | Spawning conditions | Spawning season | May-August. Other authors observed that tench spawned until Jul, other ended in mid-July, tench deased to spawn in the first days of august, also in mid-August | ['May', 'July', 'August'] |