Stocking throughout Europe for centuries has blurred the original distribution pattern. Hypothesised to be native in most of Europe, naturally absent only in Ireland, Scandinavia north of 6130'N, eastern Adriatic basin and western and southern Greece where it is now introduced. In Asia, native eastward to western Yenisei drainage south of 60N. Introduced to North and South Africa, Tasmania, Australia, New Zealand, India, North America, Chile and probably elsewhere.
Non-Migrant: Yes. At least some populations of this species do not make significant seasonal migrations. Juvenile dispersal is not considered a migration.
Locally Migrant: No. No populations of this species make local extended movements (generally less than 200 km) at particular times of the year (e.g., to breeding or wintering grounds, to hibernation sites).
Locally Migrant: No. No populations of this species make annual migrations of over 200 km.
Global Range: Native to Eurasia, east to Ob and Yenisei basins and Lake Baikal (Lee et al. 1980). Established in British Columbia, Washington, California, Idaho, Colorado, and Connecticut; introduced, but not known to be presently established, in Alberta, Arizona, Maryland, Missouri, New Mexico, New York, Oregon, and Virginia (Robins et al. 1991). Lee et al. (1980) mentioned also Delaware as an area where a population possibly may be established. Distributed to 36 states by U.S. Fish Commission in 1886-1896; introduced privately in California; spread to British Columbia from Washington via Columbia River (Lee et al. 1980).