This sturgeon family is so named because it migrates without ever leaving fresh water. It includes the Acipenser ruthenus or Sterlet, the Baeri or Siberian sturgeon (found in Lake Baikal), the Adriatic and Italian sturgeon (found in the delta of the River Po) or the Amur sturgeon. This entire family is endangered, but certain species (such as the Italian) are now farmed. The Amur sturgeon is supervised by both the Chinese and Russian authorities which re-introduce young sturgeons into the river.