Introduced in 1980 from Botswana by I. Parker for aquaculture purposes (Ref. 52331). About a thousand juvenile tilapiines, which later proved to be a mixture of Oreochromis andersonii, Oreochromis macrochir and Tilapia rendalli, were introduced in a dam at Nairobi; it is possible some specimens found their way from the dam to the Nairobi River system (Ref. 52331). It is unknown if it is established in natural waters (Ref. 52331).