SPECIAL REPORT: How Darwinian theory emerged in L.Victoria as Nile perch disappears Share Bookmark Print Email Rating By Lucas Liganga ,The Citizen Reporter Posted Monday, September 22 2014 at 07:34 In Summary EXTINCTION: Six decades after the introduction of Nile perch, there are more nets in the lake than fish Nearly 22 years since the Nile perch was first exported from Tanzania, the situation is alarming following a sharp decline in stocks in Lake Victoria caused by, among other factors, overfishing and other unsustainable harvesting methods The Nile perch, introduced in Lake Victoria in 1954 by British colonialists, is tottering on the brink of extinction due to unsustainable fishing in the lake