The brown trout (Salmo trutta) is a salmonid fish which actually has two varieties: the salt water 'version' Salmo trutta trutta - also known as the sea trout - and the fresh water species Salmo trutta fario. Some experts even distinguish a third variety: the lake trout Salmo trutta lacustris.
Although the most common catch is a trout of around 1kg (2.2lb), some brown trout grow up to 20kg (45lb) and about 1 meter long (especially in the lakes).
Trout love insect larvae, nymphs which is why they are one of the favourite fish for fly fishing enthusiasts. Brown trout are also caught spinning with all kind of lures such as spinner baits, spoons, plugs, jigs, poppers, rubber lures and live or dead baitfish.