Distribution of the Topmouth Gudgeon Pseudorasbora parva (Temminck & Schlegel, 1846) in Algeria

Abstract

The topmouth gudgeon, Pseudorasbora parva (Temminck & Schlegel, 1846), is a small freshwater fish species native to Eastern Asia, noted for its high ecological plasticity and tolerance to a wide range of environmental conditions. The species has been widely introduced beyond its native range, particularly across Europe and North Africa. In Algeria, P. parva is now well established, and is especially common in river basins and other freshwater systems in the northeast of the country.