No detailed citation.
| Species | Development state | Trait | Primary Data | Secondary Data |
| Hucho hucho | Female | Age at sexual maturity | 4-5 [Female] | 4.5 year |
| Hucho hucho | Female | Length at sexual maturity | Mean of 83.6, range 63.0-94.5 [For female migrating] | 78.75 cm |
| Hucho hucho | Female | Weight at sexual maturity | Mean of 6.1, range 2.5-8.3 [For female migrating] | 5.4 kg |
| Hucho hucho | Male | Age at sexual maturity | 3-4 [Male, the males mature a year before than females] | 3.5 years |
| Hucho hucho | Male | Length at sexual maturity | Mean of 83.2, range 58.3-109.0 [For male migrating] | 83.65 cm |
| Hucho hucho | Male | Weight at sexual maturity | Mean of 6.6, range 2.1-14.2 [For male migrating] | 8.15 kg |
| Hucho hucho | Spawning conditions | Spawning migration period | Most often the migration starts between April 7 and 10, with water 7-8°C warm [Duration of migration varies from 6 days to 1.5 months depending on environmental conditions] | ['April'] |
| Hucho hucho | Spawning conditions | Spawning season | On the south of Europe spawning starts as soon as February and lasts until March and in Central Europe it extends from April to mid-May | ['February', 'March', 'April', 'May'] |
| Hucho hucho | Spawning conditions | Spawning period duration | 5-6 [On the south of Europe spawning starts as soon as February and lasts until March] | 5.5 weeks |
| Hucho hucho | Spawning conditions | Spawning temperature | Species starts spawning at 6-10°C | 8.0 °C |
| Hucho hucho | Spawning conditions | Spawning depth | Often chooses for spawning the stream section with a depth from 0.4-0.6 m | 0.5 m |
| Hucho hucho | Spawning conditions | Mating system | Spawn in pairs | Monogamy |
| Hucho hucho | Spawning conditions | Parity | The fishes spawning represented nine age groups: 4 to 12 years | No category |