Ossetra dwells another type of sturgeon, Siberian sturgeon ("Acipenser Baerii"), which is farmed all over the world because it can adapt to a wider range of habitats. It begins to produce caviar faster than "Acipenser gueldenstaedtii". Throughout the entire history of black caviar consumption, reference to Ossetra was made only to the fish that was caught first in Imperial Russia, then the USSR, and now in the Russian Federation. Today, Caspian Ossetra is facing extinction in its native habitat. Farming sturgeon is the only way to continue the production of high-quality caviar. Continuous drastic declines in natural sturgeon populations over the
Types of inhabited localities in Russia they are all still largely based on the system used in the RSFSR. In all federal subjects, the inhabited localities are classified into two major categories: urban and rural. Further divisions of these categories vary slightly from one federal subject to another, but they all follow common trends described below. In 1957, the procedures for categorizing urban-type settlements were further refined. Multiple types of rural localities exist, some common through the whole territory of Russia, some specific to certain federal subjects. The most common types include: Types of inhabited localities in Russia The classification system of the types of inhabited