Brown Trout Fish
Brown trout (Salmo trutta) and sea trout (S. truttamorpha trutta) are both members of the same species. They can be distinguished by the fact that resident, non-migrating browns live in freshwater river systems such as Chile’s Futaleufú, while the sea-run brown trout of Tierra del Fuego are anadromous, migrating to the ocean and returning to freshwater as massive salmon-size specimens to spawn.