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Abdusamadov A.S.,Caspian Fisheries Research Institute | Belyaeva H.S.,Foundation University
Aquatic Ecosystem Health and Management | Year: 2015

This article reviews the status of fisheries in the western parts of the North and Middle Caspian Sea in the territory of Dagestan Republic, the Russian Federation. Commercial fish stocks are greatly influenced by changes in the Caspian environment induced by natural (sea level fluctuations, water advection, seabed seismicity) and anthropogenic (regulation of major rivers, pollution, invasive species, etc.) factors, as well as fishery management. Fisheries development in Dagestan is reviewed by: (1) summarizing data on the biological and eco-geographical context of biological productivity; (2) evaluating the current status of stocks of the major commercial fish species in this region and assessing the prospects for their commercial use; (3) analyzing the responses of aquatic biological resources to natural and anthropogenic impacts. A number of recommendations are suggested for establishing sustainable fisheries management in the Western Caspian Region. © 2015 AEHMS.

Khodorevskaya R.P.,Caspian Fisheries Research Institute | Kalmykov V.A.,Caspian Fisheries Research Institute
Journal of Ichthyology | Year: 2014

Analysis of dynamics of commercial catches and the state of populations of Russian sturgeon Acipenser gueldenstaedtii, starred sturgeon A. stellatus, and great sturgeon A. huso (Huso huso) in the Caspian Sea is presented. In the retrospective, the role of natural and artificial reproduction in formation of populations of Acipenseridae sturgeons is considered. The main principles of rational organization of practical activity for preservation and restoration of populations of Acipenseridae sturgeons are formulated. © 2014, Pleiades Publishing, Ltd.

Veshchev P.V.,Caspian Fisheries Research Institute | Guteneva G.I.,Caspian Fisheries Research Institute | Mukhanova R.S.,Caspian Fisheries Research Institute
Russian Journal of Ecology | Year: 2012

The results are presented that have been obtained during long-term studies (1991-2009) on the efficiency of natural reproduction of the beluga, Russian sturgeon, stellate sturgeon, and sterlet in different spawning zones of the Volga. The influence of major environmental factors on the formation of the offspring of these fishes is analyzed. It is shown that the productivity of Volga spawning grounds varies depending on the river flow volume during spring floods and the abundance of active spawners. Practical recommendations are proposed for enhancing sturgeon reproduction in the Volga. © 2012 Pleiades Publishing, Ltd.

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