Ossetra past 30 years plus a high market demand for caviar have led the way for sturgeon farming, mainly for the production of caviar. Russia, Iran, members of the European Union, China and the USA were among the first; however, for the very same reasons countries outside the natural range of sturgeons also became involved (e.g. Uruguay, Arabian countries, Israel, and more recently Vietnam). Israel is a major producer of Russian Ossetra Caviar ("Acipenser gueldenstaedtii"). Branded as "Karat Caviar" recent exports are now available in the United States in order to meet the demand for caviar since there has been no
Types of rural communities can make up for this by focusing on gerontology. Retirement communities often have income inequality between local residents and those who have migrated from cities. Examples: Green Valley, Arizona; Heritage Village, Connecticut. See also: demographic history of the United States, rural sociology, sociology 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