Species above are divided into the general Trout/Salmon/Char groups based on their habbits. Clearly, the taimen is not a member of the char family, lenoks are hardly trout while sea trout and steelhead have no genetic differences with brown and rainbow trout respectively.
Marble trout is native to the North Adriatic river systems, particularly the river Po system in Italy and the Soča river in Slovenia and Italy. Marble trout of the rivers Neretva (Croatia, Bosnia and Herzegovina) and Zeta (Montenegro) were found to be closely related to Salmo dentex.
Salmo dentex, locally known as the zubatak, is poorly studied and its status has remained unclear due to lack of samples for detailed analyses, hybridization with other trout lineages and diverse and multiple designations of the same trout in different areas. One of the inhabited areas, the Hutovo Blato wetlands, is situated North West of the Neretva river estuary in the southern part of Bosnia and Herzegovina. This is an atypical type of wetlands, characterized by several shallow lakes and channels filled with clear and cold water, creating conditions suitable for salmonids.
Although marble trout is characterized by the distinct marble patterns on its body, a few strains of brown trout were also found to exhibit the same type of coloration including one in Norway. To make maters more complicated, some marble trout also feature the red spots, so characteristic of brown trout.
Marble trout average 30 to 70 cm in length. The largest specimen in Slovenia was a 117 cm and 24 kg female (found dead), largest living specimen caught was 120 cm and 22.5 kg. There are reports of individuals weighing up to 30 kg. The largest specimens were found in Bosnia and Herzegovina, inhabiting the Neretva river from below the town of Konjic downstream to the town of Čapljina, mostly in canyon sections from the town of Jablanicato the city of Mostar, and later after construction of Jablanica dam on the Neretva river in Jablaničko Lake. Trout become sexually mature at the age 3+ (males) and 4+ (females), they spawn during November and December.
Marble trout is piscivorous, feed mainly on smaller fish and benthic invertebrates. It is usually caught with big streamers fished deep or with plugs and other lures. Given the status of their population, marble and dentex trout are species of great concern.