Invading non-native species can have profound effects on native biodiversity and related ecosystem services. Investigating the introduction pathways and vectors, invasion pattern and status as well as ecology and ecophysiology of non-native species, especially invaders, is crucial to understand and predict their potential impact. This session provides a platform for young marine researchers to present their scientific results concerning whole spectrum of topics related to invasive and range-expanding species. For instance, single-species cases, community effects of invasive species or modelling approaches are called to add to this comprehensive session.