A new record of the freshwater jellyfish Craspeducusta sowerbii Lankester, 1880 (Hydrozoa) in Southeastern Anatolia (Turkey)

We report the first record of the invasive freshwater jellyfish Craspedacusta sowerbii Lankester in Kralkizi Dam Lake, Southeastern Anatolia, Turkey. The medusa was found only in August, 2008 when average surface water temperatures were 26.9 degrees C.