Trout are a kind of freshwater fish that are in the same subfamily (Salmoninae) as their close buddy the salmon. These fish can be located near the Pacific or Atlantic Ocean, as well as there are a variety of different species of trout that are figured out based upon their location as well as characteristics.
Some trout, most significantly the steelhead trout, are much more alike their salmon brethren than others due to their migratory nature. These trout will spend many of their time in the sea just before they decide to make the long trek upstream to procreate and also lay eggs. Various other trout, such as the Lake Trout, will invest their entire lives in the freshwater lakes as well as rivers, never ever entering the sea or making hard voyages upstream.