“…However, panmixia has been observed in very few cases and genetically pure individuals are present in most populations ( Meraner & Gandolfi, 2018 ), possibly due to a partial overlap of the spawning period of the two parental species and to local differences in the relative size of introduced non-native stocks and native populations ( Meraner et al, 2010 ; Meraner & Gandolfi, 2018 ). Like many other salmonid species, Italian marble trout populations also suffer habitat destruction and degradation from damming, channelization, water withdrawal, hydropeaking events, extraction of riverbed materials, artificial embankments, degradation or destruction of the riparian vegetation, and climate change ( Zerunian, 2003 ; Becciu & Dresti, 2015 ; Dresti et al, 2016 ; Saidi et al, 2014 , 2018 ), with possible but yet uninvestigated synergistic effects on population structure.…”