Kura (Caspian Sea) drained and reservoirs were created to facilitate development of irrigation in the lower Kura valley. In the 1950s and 1960s, when the Caucasus region was part of the Soviet Union, construction of many of the reservoirs and waterworks in the Kura basin began. Of the major reservoirs in the Kura catchment, one of the earliest was at Varvara in 1952. Large scale construction of dams continued until the 1970s. Kura (Caspian Sea) The Kura (; ; , "Mt’k’vari"; , "Kur"; , "Cyrus"; , "Kuruš" ) is an east-flowing river south of the Greater Caucasus Mountains which drains the southern slopes
Black Sea sprat Used for food; it has around 12% fat in flesh. It is one of the most abundant fishes in the Sea of Azov. It is important prey for other fishes, particularly the pikeperch. The Caspian tyulka "Clupeonella caspia" has been long considered a subspecies of "C. cultriventris", "C. cultriventris caspia", and a common name "Black and Caspian Sea sprat" was then applied to the whole. Black Sea sprat The Black Sea sprat, "Clupeonella cultriventris", is a small fish of the herring family, Clupeidae. It is found in the Black Sea and Sea of Azov and rivers of its basins: Danube,