Ascidian introductions through the Suez Canal: The case study of an Indo-Pacific species

► Little is known regarding Lessepsian migrations of ascidians. ► We use a multidisciplinary approach to study an Indo-Pacific ascidian species. ► We reviewed its taxonomy, colonization history, and global distribution. ► Genetic data indicated different colonization histories across the Mediterranean Sea. ► We provide a framework to attain a holistic understanding of marine introductions.