Anthropogenic and environmental factors of natural reproduction decline in Beluga Huso Huso, Russian sturgeon Acipenser Gueldenstaedtii and Stellate sturgeon a. Stellatus at the Volga-Caspian region
2017
Ruban, G.I. | Khodorevskaya, R.P. | Shatunovskii, M.I.
Basing on own and literature data it was analyzed the influence of environment and anthropogenic factors (long-term fluctuations of the Caspian Sea level, decline of water flow of the Volga River as well as decrease of anadromous sturgeon species migration roots resulting dam construction, water pollution at lower reaches of the Volga River as well as at the Caspian Sea, intensive and selective illegal fishing) on scale of natural reproduction in beluga, Russian sturgeon and stellate sturgeon at Volga-Caspian basin during last 60 years. For separate periods of time were found leading factors of natural reproduction decline in species under study
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