Sarotherodon linnellii
Overview
Sarotherodon linnellii, sometimes known as the unga, blackfin tilapia or blackbelly tilapia, is a cichlid endemic to Lake Barombi Mbo in western Cameroon. This species reaches a length of 18.5 centimetres (7.3 in) SL. It is critically endangered because of pollution and sedimentation due to human activities.
It is potentially also threatened by large emissions of carbon dioxide (CO2) from the lake's bottom (compare Lake Nyos), although studies indicate that Barombo Mbo lacks excess amounts of this gas.
Sarotherodon linnellii faces severe population decline primarily due to habitat degradation and water pollution in its limited freshwater range. The species is particularly vulnerable to agricultural runoff and industrial contamination that degrades water quality in the river systems it depends upon. Competition and hybridization with introduced tilapia species further threatens the genetic integrity of remaining populations.
Habitat
This cichlid fish inhabits freshwater river systems and associated wetlands in West Africa, particularly favoring areas with moderate current and rocky or sandy substrates. The species requires clean, well-oxygenated water with stable temperature conditions for successful breeding and feeding.
Other threatened species in CICHLIDAE
Threatened in Cameroon
Frequently asked questions
Why is Sarotherodon linnellii classified as Critically Endangered?
Where does Sarotherodon linnellii live?
What are the main threats to Sarotherodon linnellii?
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