Chereshnev, 2000



Citation


No detailed citation.

Associated characteristics


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