Title page This is a previous version of the article published in Journal of Environmental Management. 2019, 241: 328-339. doi:10.1016/j.jenvman.2019.04.011 A HITCHHIKER’S GUIDE TO MEDITERRANEAN MARINA TRAVEL FOR ALIEN SPECIES Aylin Ulman1,2,3, Jasmine Ferrario1, Aitor Forcada4, Christos Arvanitidis3, Anna Occhipinti-Ambrogi1 and Agnese Marchini1* 1Department of Earth and Environmental Sciences, University of Pavia, Pavia, Italy 2Sorbonne Université, CNRS, Laboratoire d'Ecogéochimie des Environnements Benthiques, LECOB, Banyuls-sur-Mer, France 3Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre of Marine Research, Thalassokosmos, Heraklion, 71003, Crete, Greece 4Department of Marine Sciences and Applied Biology, University of Alicante, Spain *Corresponding author email
[email protected] at Via S. Epifanio, 14, Pavia, Italy Graphical Abstracts *Highlights (for review) Click here to view linked References Highlights Factors shaping non-indigenous species (NIS) richness are tested in the Mediterranean. There is a higher trend of NIS richness going from east to west in the Mediterranean. NIS richness in marinas is mainly influenced by proximity to other major vectors. NIS similarities between marinas are more influenced by environmental factors. The Suez Canal exerts a very strong influence for NIS in Mediterranean marinas. *Manuscript Click here to view linked References 1 2 3 1. Introduction 4 5 The seas are currently inundated with many stressors such as overharvesting, eutrophication and 6 7 pollution, physical alteration of natural habitats, climate change and invasive species which, 8 9 combined, are negatively affecting both ecosystem structure and function (US National Research 10 11 Council, 1995; Worm et al., 2006; Jackson, 2008).