No detailed citation.
| Species | Development state | Trait | Primary Data | Secondary Data |
| Stenodus leucichthys | Spawning conditions | Spawning substrate | Sandy-pebbly bottom | Psammophils |
| Stenodus leucichthys | Spawning conditions | Spawning temperature | 3-6°C | 4.5 °C |
| Stenodus leucichthys | Spawning conditions | Spawning water type | Wide areas | No category |
| Stenodus leucichthys | Spawning conditions | Spawning depth | Depth 2-3 m | 2.5 m |
| Stenodus leucichthys | Female | Maximum GSI value | Mean 18.3 but up to 23.5 [First ten day period of August] | 18.3 percent |
| Stenodus leucichthys | Egg | Incubation time | 250-260 | 255.0 days |
| Stenodus leucichthys | Female | Relative fecundity | 18-35 eggs per 1 g of body weight, not viscera. Also described that the absolute fecundity ranges from 80000 to 420000, for female ranging from means of 3.35 [At 11 years old] to 9.74 [At 17 years old] | 26.5 thousand eggs/kg |
| Stenodus leucichthys | Female | Age at sexual maturity | Mass maturation for males at 9-11 [But could be as early as 7] | 10.0 years |
| Stenodus leucichthys | Female | Intensifying oogenesis activity | July-August [From 7.8% to 18.3%] | ['August', 'July'] |
| Stenodus leucichthys | Spawning conditions | Spawning migration period | The prespawning nelma begins migration to its spawning grounds before the ice drift, the mass migration is observed in the first half of June | ['June'] |
| Stenodus leucichthys | Female | Absolute fecundity | 80-420 | 250.0 thousand eggs |
| Stenodus leucichthys | Spawning conditions | Spawning season | Mass spawning of nelma begins in middle to late September | ['September'] |
| Stenodus leucichthys | Female | Weight at sexual maturity | Mass maturation for females at 4.0-5.0 [But could be 2.53] | 4.5 kg |
| Stenodus leucichthys | Female | Length at sexual maturity | Mass maturation for females at 70-75 [But could be as 66.2] | 72.5 cm |
| Stenodus leucichthys | Male | Length at sexual maturity | Mass maturation for males at 65-70 [But could be as 54.0] | 67.5 cm |
| Stenodus leucichthys | Larvae | Initial larval size | Average 13.2, range 12.6-14.3 | 13.45 mm |
| Stenodus leucichthys | Male | Weight at sexual maturity | Mass maturation for females at 2.0-3.5 [But could be 1.47] | 2.75 kg |
| Stenodus leucichthys | Female | Age at sexual maturity | Mass maturation for females at 10-12 [But could be as early as 8] | 11.0 year |