First record of the Guppy (Poecilia reticulata Peters, 1859) in inlandwaters of Turkey

The ever-increasing global trade of ornamental aquarium fishes is one of the most important pathways for aquatic invasion. Occurrence of ornamental freshwater fishes in natural freshwaters has been increasing in recent years. the ornamental trade accounts for a limited but steadily growing proportion of fish introductions to Turkish inlandwaters. in this study, Guppy, Poecilia reticulata, is recorded for the first time from natural inlandwaters of Turkey. P. reticulata was probably released into the wild, but is now established in aquifer of Cesme-Ildir (Izmir).