| Reference no. | Bogutskaya, N.G. and A.M. Naseka, 2002 |
| Ecosystem | Volga |
| Status | native |
| Abundance | |
| Lifestage | adults |
| Regional database | |
| Remarks | Mass migration of large individuals into the Volga starts when the water temperature is about 9° C; peak at temperatures of 12°-15° C, and ceases at about 22° C (Ref. 10432). Most spawning grounds were upriver and are no longer accessible (Ref. 59043). |