A brackish and freshwater fish of the herring family (Clupeidae), Clupeonella cultriventris, found in the northwestern Black Sea, the Sea of Azov, and the Caspian Sea; also occurring in lakes in Turkey and Bulgaria; it is often marketed dried and salted and is also known as Black Sea sprat. A regional staple, its safety depends on proper salting, drying, and storage — traditional preservation methods that remain effective when done correctly. It is often eaten with bread as a simple salty snack.