Introduction of Nile Perch in Lake Victoria of South Africa resulted in
Excessive growth of water weeds
Elimination of water weeds
Elimination of many species of Chichlid fish
Excessive growth of Chichlid fish
The Nile perch is a species of freshwater fish in family Latidae belonging to order Perciformes. It occurs throughout much of the Afrotropic ecozone and is native to the Congo, Nile, Senegal, Niger and Lake Chad, Volta, Lake Turkana, and other river basins. The Nile perch was introduced to Lake Victoria in East Africa in the 1950s and is attributed with causing the extinction or near-extinction of several hundred native species. One of the eliminated species was of the Cichlid fish.
So, the correct answer is 'Elimination of many species of Cichlid fish'.