Black Sea–Caspian Steppe Terek River. Between these the rivers are caught by the Malka River which is an east-flowing tributary of the Terek. In the west, since the Caucasus Mountains run parallel and close to the Black Sea coast, no significant rivers from this area reach the Black Sea. The western point is the Taman Peninsula. North of the Taman Peninsula the Kuban River, the Beysug River and the Yeya Rivers reach the Sea of Azov, and the long Manych River and the shorter Sal River reach the lower Don. In the north much of the lower Don is under the Tsimlyansk Reservoir
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,