鱒
The first introductions in Canada occurred in 1883 in Newfoundland and continued until 1933. The only Canadian regions without brown trout are Yukon and the Northwest Territories. Introductions into South America began in 1904 in Argentina. Brown trout are now established in Chile, Peru, and the Falklands. In the 1950s and 1960s, , a French geologist, began the introduction of several species of salmonids on the remote Kerguelen Islands in the southern Indian Ocean. Of the seven species introduced, only brook trout, "Salvelinus fontinalis", and brown trout survived to establish wild populations. Sea-run forms of brown trout exceeding are caught by local anglers on a regular basis.