Using this graphic and referring to it is encouraged, and please use it in presentations, web pages, newspapers, blogs and reports.
For any form of publication, please include the link to this page and give the cartographer/designer credit (in this case Philippe Rekacewicz, UNEP/GRID-Arendal)
After Kosarev and Yablonska, 1994 and Dumont 1998 in Fabienne Marret, Suzanne Leroy, Françoise Chalié, Françoise Gasse, 'New organic-walleddinoflagellate cvysts from recent sediments of Central Asian seas, review of palaeobotany and palynology' 129, 2004; N.V. Aladin, Y.S.Chikov, V.E. Panov andI.S. Plotnikov, Chronology of Mnemiopsis and Beroe invasions to the Black, Azov and Caspian Seas, Presentation to the HELCOM-BSRP meeting on ballastwaters, Klaipada-Palanga, February 2005