Nile perch
The Nile perch is a substantial predator. One specimen, preserved at the Kisumu Museum in Kenya, weighed when landed. Populations of the fish established themselves in a clockwise motion around the lake, starting in Uganda, followed by Kenya and ending in Tanzania. Initial catches were minimal, but grew rapidly in the 1980s, heralding the start of the so-called 'Nile perch boom'. "On the face of it...the lake after the debut of "Lates" [Nile perch] has turned into a fish producer that can only be described in Gargantuan terms".