Sterlet Sterlet The sterlet ("Acipenser ruthenus") is a relatively small species of sturgeon from Eurasia native to large rivers that flow into the Black Sea, Azov Sea, and Caspian Sea, as well as rivers in Siberia as far east as Yenisei. Populations migrating between fresh and salt water (anadromous) have been extirpated. Due to overfishing (for its flesh, caviar, and isinglass), pollution, and dams, the sterlet has declined throughout its native range and is considered vulnerable by the IUCN. Restocking projects are ongoing, and it has been introduced to some regions outside its native range, but the latter have generally not
Types of rape Types of rape Rape can be categorized in different ways: for example, by reference to the situation in which it occurs, by the identity or characteristics of the victim, and by the identity or characteristics of the perpetrator. These categories are referred to as types of rape. The types of rape described below are not mutually exclusive: a given rape can fit into multiple categories, by for example by being both a prison rape and a gang rape, or both a custodial rape and the rape of a child. The term "date rape" is used to refer to several types