“…the Agreement on the Application of Sanitary and Phytosanitary Measures and the International Convention for the Control and Management of Ships' Ballast Water and Sediments), and international standards have been set to prevent the transportation of harmful alien species (Brenton-Rule, Barbieri, & Lester, 2016;McGeoch et al, 2010;Turbelin et al, 2017). At a national level, countries have developed legislation that aims to prevent invasions, and have implemented a range of biosecurity interventions (Early et al, 2016;McGeoch et al, 2010;Sikes et al, 2018). However, although both international and national-level responses have increased over time, countries differ with regard to their capacity to prevent invasions, their biosecurity protocols and their implementation of international standards (Bacon, Bacher, & Aebi, 2012;Early et al, 2016;Eschen et al, 2015;McGeoch et al, 2010;Ricciardi et al, 2017;Turbelin et al, 2017).…”