Marble trout (Salmo marmoratus) is a species of freshwater fish in the Salmonidae family. It is characterized by distinctive marbled color pattern and high growth capacity. The marble trout is found in rivers of the Adriatic basin, particularly in the Po and Adige rivers in Italy and Soča and Idrijca rivers in Slovenia, and has traditionally been identified also in further drainages of western Balkans in Bosnia and Herzegovina, Montenegro and possibly Albania.
