A description of Tilapia aurea based on specimens from
Florida is presented with an updated synonomy. The
Florida specimens are compared with descriptions of
specimens from Israel. It is concluded that Florida
specimens have the same range in morphological variability
as specimens from Isreal. The experimental
work completed here indicates that Tilapia aurea
does not adversely affect native fish populations.
It is speculated that Tilapia aurea may have stabilized
the experimental fish populations by a "polyculture
effect."