Here's where the Mediterranean trout can be found: Europe: Mediterranean trout is native to most of Europe. It is commonly found in streams, rivers, and lakes across the continent. Asia: Mediterranean trout's native range in Asia extends from the mountains of Turkey and the Caucasus, through the Himalayas. North America: Mediterranean trout was introduced to North America in the late 19th century and has since become established in many rivers, streams, and lakes. They can be found across the U.S. (especially in the northeastern states, the Great Lakes region, and the western states) and parts of Canada. Australia and New Zealand: Mediterranean trout was introduced in the late 19th and early 20th centuries and is now found in many freshwater systems across both countries. South America: The Mediterranean trout has been introduced to several countries in South America, especially in mountainous regions.