Holcik, J. (1990) Conservation of the huchen, Hucho hucho (L.), (Salmonidae) with special reference to Slovakian rivers. Journal of Fish Biology, pp.
| Species | Development state | Trait | Primary Data | Secondary Data |
| Hucho hucho | Egg | Incubation time | 20 days at 12°C | 20.0 days |
| Hucho hucho | Egg | Degree-days for incubation | 240 [20 days at 12°C] | 240.0 °C * day |
| Hucho hucho | Female | Age at sexual maturity | 4-5 [Sex specified] | 4.5 year |
| Hucho hucho | Female | Weight at sexual maturity | 2-3 | 2.5 kg |
| Hucho hucho | Male | Age at sexual maturity | 3-4 [Sex specified] | 3.5 years |
| Hucho hucho | Male | Weight at sexual maturity | 1-2 | 1.5 kg |
| Hucho hucho | Spawning conditions | Spawning migration distance | Move upstream to spawning sites, but these migrations are short, not exceeding 10-25 km | 17.5 km |
| Hucho hucho | Spawning conditions | Spawning temperature | 5-10 | 7.5 °C |
| Hucho hucho | Spawning conditions | Spawning release | Eggs are buried in spawning redds | No category |