[7] Since the colonial era the river's marshes have been developed to combat famine, and the effect on existing flora was not considered.
[8] Between 1959 and 1993 the cultivated area in the Nyamuswaga marsh rose steadily from 2,000 to 8,250 hectares (4,900 to 20,400 acres).
[9] The Nyamuswaga and the Nyarunteke are the most important streams in the Commune of Tangara, Ngozi, where the natural vegetation has largely been cleared.
[10] The rice marshes in the Commune of Gashikanywa, Ngozi Province, on the Nyakijima and Nyamuswaga rivers covered about 500 hectares (1,200 acres) in March 2024.
[11] In August 2024 a group of senators visited the Nyamuswaga marshes in the Commune of Gashoho, Muyinga Province.