Brown Trout

The brown trout (Salmo trutta) is a European species of salmonid fish that has been widely introduced into suitable environments globally. It includes both purely freshwater populations, referred to as the riverine ecotype or Salmo trutta morpha fario and a lacustrine ecotype, S. trutta morpha lacustris, also called the lake trout, as well as anadromous forms known as the sea trout, S. trutta morpha trutta. The latter migrates to the oceans for much of its life...