1. Alent’eva, L.E., Autumn distribution of fish juveniles in reservoirs of nature reserves, in Letopis’ prirody Astrakhanskogo gosudarstvennogo zapovednika za 1980 god (Nature Chronicles of the Astrakhan State Nature Reserve for 1980), Astrakhan: Arkh. Astrakh. Gos. Zapoved., 1980, book 2, pp. 161–165.
2. Belevich, E.F., Zonation of the Volga River delta, Tr. Astrakh. Gos. Zapoved., 1963, no. 8, pp. 401–421.
3. Benitez, J.-P., Nzau Matondo, B., Dierckx, A., and Ovidio, M., An overview of potamodromous fish upstream movements in medium-sized rivers, by means of fish passes monitoring, Aquat. Ecol., 2015, vol. 49, no. 4, pp. 481–497. https://doi.org/10.1007/s10452-015-9541-4
4. Brannon, E.L., Mechanisms Controlling Migration of Sockeye Salmon Fry, International Pacific Salmon Fisheries Commission Bulletin no. 21, New Westminster, BC, 1972.
5. Deleray, M.A. and Kaya, C.M., Lakeward and downstream movements of age-0 Arctic grayling (Thymallus arcticus) originating between a lake and a waterfall, Great Basin Nat., 1992, vol. 52, no. 4, pp. 344–351.