Invasive Alien Species

Vaal River residents say water lettuce is ‘national crisis’

If allowed to pass the Vaal River Barrage, the plant has access to a journey of about 1 000km of the middle and lower Vaal river, the Bloemhof Dam and then into the Orange river

Sheree Bega

11 min read

Green but not good: Water hyacinth on Lake Victoria at Kichinjio Beach in Kisumu, Kenya, hamper fishermen’s efforts to make a living. In Lake Victoria, fisheries have declined from the depletion of tilapia caused by the spread of water hyacinth, the world’s most widespread terrestrial invasive alien species. (Yasuyoshi Chiba/AFP)

FOOD SECURITY

13 SEP 2023

Invasive alien species driving animal and plant extinctions

A major new report warns that invasive alien species wreaking havoc on nature and thus on nature’s contribution to people

Sheree Bega

South Africa’s freshwater fish face extinction

A third of our freshwater fish are dying out due to climate change and invasive species.

Sheree Bega

5 min read