Demska-Zakes, K. and Dlugosz, M. (1995) Fecundity of vendace from two lakes of Mazurian lake district. Archiwum rybactwa polskiego/Archives of Polish fisheries. Olsztyn [ARCH. RYB. POL./ARCH. POL. FISH.], pp. 37-50
| Species | Development state | Trait | Primary Data | Secondary Data |
| Coregonus albula | Female | Age at sexual maturity | 1-2 [Sex specified] | 1.5 year |
| Coregonus albula | Female | Length at sexual maturity | 15.3-26.5 [Female in two different populations] | 20.9 cm |
| Coregonus albula | Female | Weight at sexual maturity | 40.3-263.5 g ! | 151.9 kg |
| Coregonus albula | Female | Relative fecundity | About 100 | 100.0 thousand eggs/kg |
| Coregonus albula | Female | Absolute fecundity | 2.0-31.1 [Range of absolute fecundity in 17 lakes] | 16.55 thousand eggs |
| Coregonus albula | Female | Onset of oogenesis | May-June | ['May', 'June'] |
| Coregonus albula | Female | Intensifying oogenesis activity | September-October | ['September', 'October'] |
| Coregonus albula | Female | Maximum GSI value | Mean is 23.39 ± 4.21 [November] | 23.39 percent |
| Coregonus albula | Female | Oogenesis duration | 6-8 months [From July to December] | 7.0 months |
| Coregonus albula | Female | Resting period | 2.5-3 but up to 4-4.5 months in low temperature [January until May] | 2.75 months |
| Coregonus albula | Spawning conditions | Spawning season | November-December | ['November', 'December'] |
| Coregonus albula | Spawning conditions | Spawning release | Observations and histological analysis revealed that vendace in both lakes was a monocyclic spawner | No category |