For citations:

Voynova T.V., Barabanov V.V., Chaplygin V.A. About the reasons for the decrease in the spawning stock of black-backed herring in Volga River. Problems of Fisheries. 2022;23(2):189-200. (In Russ.) https://doi.org/10.36038/0234-2774-2022-23-2-189-200