1. Global diversity of crustacean copepods with special reference to the genus Pseudodiaptomus (Calanoida: Pseudodiaptomidae) and the „invasion“ of coastal waters of Europe. S. Gaviria University of Vienna, Dep. of Limnology and Oceanography, Austria K. J. Wittmann Medical University of Vienna, Institute of Environmental Hygiene, Austria A. P. Ariani Università di Napoli Federico II, Dip. delle Scienze Biologiche, Italy 3 th International Conference on Marine Biodiversity (2014), Qingdao, China

2. Probable origin of Pseudodiaptomus serricaudatus in Italy: - Asian coastal waters - African coastal waters - Red Sea (Lessepsian migration) Probable modes of introduction: aquaculture, ballast water of ship So far no evidence of competition for food with local demersal calanoids or other species Pseudodiaptomus is expanding its territory in the subtropical and temperate regions of America and Europe, probably also elsewhere Conclusions

3. Acknowledgements for support during the research Chad Walter, US National Museum of Natural History (literatur) University of Vienna & Medical University of Vienna, Austria - Napoli Universitá Federio II, Italy (sampling, taxonomy) for supporting the assistance to this conference, Technisches Büro für Biologie Dr. Gaviria Melo, Vienna, Austria Colombian Academy of Sciences, Bogotá, Colombia Mark Costello, WoRMS World register of marine species, Auckland, New Zealand

4. Thank you for your attention! any question?