| Reference no. | Reshetnikov, Y.S., N.G. Bogutskaya, E.D. Vasil'eva, E.A. Dorofeeva, A.M. Naseka, O.A. Popova, K.A. Savvaitova, V.G. Sideleva and L.I. Sokolov, 1997 |
| Ecosystem | Volga |
| Status | native |
| Abundance | |
| Lifestage | adults |
| Regional database | |
| Remarks | Found throughout the year in lower reaches and deltas. Sharply declined in parts of Volga drainage due to impoundment and water regulation in the 20th century, but most likely stabilized at a low or moderate level since (Ref. 59043). |