Starry sturgeon feeds on fish, worms, crustaceans and mollusks. It lies on the bottom during the day and feeds mostly at night. This fish is anadromous and moves upriver into shallow waters to spawn. The starry sturgeon is an important commercial species of fish. It is one of the three most important species for caviar, see "Sevruga caviar", along with the Beluga sturgeon and the Ossetra sturgeon. Its flesh is considered an expensive delicacy in the Caspian region. It is used to make kabaabs, or is consumed pan fried, broiled, or smoked. There have been several attempts in Russia, Iran, Italy, and
USS Sterlet (SS-392) survivor from a Japanese convoy destroyed by American aircraft carrier planes three weeks earlier. The submarine remained at Midway for just over three weeks; then headed for its patrol area in the Nansei Shoto on 18 September. After sinking a small Japanese fishing boat on 9 October, "Sterlet" rescued six downed airmen off Okinawa. On 18 October, she made an unsuccessful attempt to close and attack one of six destroyers escorting three cruisers. Two days later, she fired a spread of three torpedoes at a Japanese cargo ship, but all three missed. She made a third fruitless approach on 25