Lake of Nani
The lake of Nani is located at the western slope of Profitis Ilias
mountain. It is a small natural lake that fills with rainwater.
In 1988, a small gizani population was recorded in the lake, which
was actually characterised as safe. However, during a study carried
out in 1991, this population was reported to be extinct. According
to statements made by locals, the lake, which is used as a water
reservoir for irrigation, dried up completely in the early 1990s,
due to over-abstraction of water.
The latter most probably caused the extinction of gizani from the
lake. The only fish species inhabiting the lake nowadays are common
carp (Cyprinus carpio) and mosquito fish (Gambusia
affinis), since they are less sensitive to adverse environmental
conditions. These species have been introduced to Rhodes island
(and to this freshwater system), but both their origin and time
of introduction remain unknown.