Caviar sturgeon from the Sea of Azov began reaching the tables of aristocratic and noble Byzantine Greeks in the 10th century, after the commencement of large-scale trading between the Byzantine Empire and Kievan Rus'. The main types of caviar are Beluga, Sterlet, Kaluga hybrid, American osetra, Ossetra, Siberian sturgeon and Sevruga. The rarest and costliest is from beluga sturgeon that swim in the Caspian Sea, which is bordered by Iran, Kazakhstan, Russia, Turkmenistan, and Azerbaijan. Wild caviar production was suspended in Russia between 2008 and 2011 to allow wild stocks to replenish. Azerbaijan and Iran also allow the fishing of sturgeon
Types of rural communities Types of rural communities Sociologists have identified a number of different types of rural communities, which have arisen as a result of changing economic trends within rural regions of industrial nations. The basic trend seems to be one in which communities are required to become entrepreneurial. Those that lack the sort of characteristics mentioned below, are forced to either seek out their niche or accept eventual economic defeat. These towns focus on marketing and public relations whilst bidding for business and government operations, such as factories or off-site data processing. For instance, International Falls, Minnesota markets itself as a site