“…In recent years, citizen science and social media have contributed greatly to the monitoring and early detection of non-indigenous species in the Mediterranean Sea (Al Mabruk et al, 2018;Al Mabruk and Rizgalla, 2019;Azzurro and Tiralongo, 2020;Osca et al, 2020;Tiralongo et al, 2019Tiralongo et al, , 2020Al Mabruk et al, 2021b;Tiralongo et al, 2021). The strategic geographical location of Libya at about the center of the southern Mediterranean Sea and bordering with Egypt, makes this region a key area for the monitoring of tropical organisms arriving from both the Red Sea (Lessepsian immigrants) and Atlantic Ocean (Shakman et al, 2017;Al Mabruk et al, 2020, 2021c. On the basis of this, more studies targeting alien species should be performed in this area.…”