Pollution and the extraction of river waters, mainly due to agricultural activities, are posing a serious threat to the survival of this fish, as is the introduction of some non-endemic species, including the wels catfish (Silurus glanis), the common nase (Chondrostoma nasus) and the common roach (Rutilus rutilus) (1). These species are generally introduced for sport-fishing, a popular activity with Italian people (3).
Since the Italian nase needs to migrate to suitable places to spawn during spring, dams and other barriers also represent a threat to the survival of this animal. Predation by cormorants (Phalacrocorax carbo) is also of concern, as cormorants are becoming a serious pest and taking large numbers of fish in some locations in Italy (1).
Climate change also poses a long-term threat to the Italian nase (1), as an increase in global temperatures is predicted to result in a decrease in freshwater in the Mediterranean basin region (7).