 Because of its small size, the abundant open-water Lake Victoria sardine only supported minor fisheries until the decline of other natives.At the peak in the early 1990s, of Nile perch were landed annually in Lake Victoria, but this has declined significantly in later years.A number of environmental issues are associated with Lake Victoria and the complete disappearance of many endemic cichlid species has been called the "most dramatic example of human-caused extinctions within an ecosystem".