Brylinska, M. and Chybowski, L. and Boguszewski, A. (2002) Reproductive biology of burbot, Lota lota lota, in lake Hancza, Poland. Folia Zool., pp. 141-148
| Species | Development state | Trait | Primary Data | Secondary Data |
| Lota lota | Egg | Oocyte diameter | 0.80 to 1.00-1.12 [Ooocytes prior to spawning] | 1.06 mm |
| Lota lota | Egg | Egg size after water-hardening | 0.5-1.70 [Not specified] | 1.1 mm |
| Lota lota | Female | Relative fecundity | 448.8-1234.5 | 841.65 thousand eggs/kg |
| Lota lota | Female | Relative fecundity | 617.9-1572 | 1094.95 thousand eggs/kg |
| Lota lota | Female | Absolute fecundity | 32.2-1453 | 742.6 thousand eggs |
| Lota lota | Female | Onset of oogenesis | July [Increase from July to November] | ['July', 'August', 'September', 'October', 'November'] |
| Lota lota | Female | Maximum GSI value | 8.8 (November 26) but also up to 16.9% | 8.8 percent |
| Lota lota | Female | Oogenesis duration | 5-6 [From July to November] | 5.5 months |
| Lota lota | Female | Resting period | 0.5 -1.3 [July 29] | 2.0 months |
| Lota lota | Male | Male sexual dimorphism | GSI in burbot is higher for the testes than the ovaries !!! | Absent |
| Lota lota | Male | Onset of spermatogenesis | July [Increase from July to November] | ['July', 'August', 'September', 'October', 'November'] |
| Lota lota | Male | Maximum GSI value | 20.6 [November 26] but up to 25.8% | 20.6 percent |
| Lota lota | Male | Resting period | 0.5-2.7 [July 29th] | 1.6 months |