Ivanova, N.M. and Polovkova, S.N. (1972) Types of spawning grounds and spawning ecology of the landlocked smelt [Osmerus eperlanus (L.)], in Rybinsk reservoir. Journal of Ichthyology, pp. 625-633
Species | Development state | Trait | Primary Data | Secondary Data |
Osmerus eperlanus | Egg | Egg Buoyancy | Eggs sink to the bottom | Demersal |
Osmerus eperlanus | Egg | Egg adhesiveness | Attach themselves to the sand | Non-Adhesive |
Osmerus eperlanus | Spawning conditions | Spawning migration period | Spawning migration in the northwestern regions of the Soviet Union begins in the early spring: either when ice breaks up or immediatly after | ['April', 'May', 'June'] |
Osmerus eperlanus | Spawning conditions | Spawning season | Spawning begins on April 30 in the upper reaches of the Il'd' river in 1970, on May around Shumorovskiy Island and on May 9-11 in the estuary | ['April', 'May'] |
Osmerus eperlanus | Spawning conditions | Spawning depth | Depths of the spawning grounds range from 0.4 to 3.7 m in individual lakes. 1-2 m in rivers | 1.5 m |
Osmerus eperlanus | Spawning conditions | Spawning substrate | In lake, the spawning substrate may be vegetation mainly water moss and the roots and stems of terrestrial plants or coarse sand and gravel. In river, mainly submerged vegetation | Lithophils |
Osmerus eperlanus | Spawning conditions | Parity | River consits of large repeat spawners [The largest females and males arrive in spawning grounds and spawn first] | No category |