Caviar is obtained from Acipenser stellatus. These small sturgeon are usually under 50 pounds. Sevruga is light gray in color and has a creamy texture and strong flavor.The Sevruga sturgeon produces the smallest roe of the three main caviar varieties. More plentiful than the other two, it is also the least expensive. Its roe is black to very light grey in color and, like Beluga, it has a buttery flavor, but saltier, richer, and more intense. It's unique flavor is highly valued.