| Reference no. | Berg, L.S., 1964 |
| Ecosystem | Caspian Sea |
| Status | native |
| Abundance | |
| Lifestage | adults |
| Regional database | |
| Remarks | Semi-anadromous populations sharply declined in Caspian basin which is expected to continue due to increasing hydroelectric development, estuarine overfishing & strong ecological impacts on the basin; non-anadromous abundant in southern part (Ref. 59043). |