Dlugosz, M. and Worniallo, E. (1989) Variability of vendace (Coregonus albula L.) gonads in the annual cycle, in three lakes of Mazurian lakeland. Acta Ichthyologica et Piscatoria [ACTA ICHTHYOL. PISC.], pp. 171-190
| Species | Development state | Trait | Primary Data | Secondary Data |
| Coregonus lavaretus | Egg | Temperature for incubation | The aquaria were supplied with filtered lake water. Water temperature increased gradually from 7°C in February to 19.5°C in June 1986 | 7.0 °C |
| Coregonus lavaretus | Larvae | Onset of exogeneous feeding | Feeding commenced on 13 February (three days after hatching) | 13.0 °C * day |