Any of various large, ganoid freshwater and marine fishes of the family Acipenseridae of the Northern Hemisphere, having edible flesh and valued as a source of caviar and isinglass.

• 鲟鱼：一种北半球产的，有巨大的硬鳞的淡水鱼或海洋鱼，其肉可食，是鱼子酱及鱼胶的宝贵来源