What is driving tilapia fish in Lake Jipe into near extinction 07 IN 2015 Nile Tilapine fingerlings were introduced on the Kenyan side of Lake Jipe. By Janet Murikira The introduction of non-endemic fish species has left fishermen and researchers worried that this will increase competition in the Lake, further severing populations of the critically endangered Jipe Tilapia. There is a 50 per cent likelihood that Jipe Tilapia, will become extinct within 20 years. Steven Omondi does not miss his old fishing days. The 30 year old lives in Nghonji village along the shores of Lake Jipe, a shallow interterritorial lake shared by Kenya and Tanzania in the Taita Taveta and Kilimanjaro regions.