The Zambezi flows 2,574km from Zambia's highlands through Angola, Zimbabwe, Botswana, and Mozambique to the Indian Ocean. Its wildlife — including Africa's largest elephant populations and spectacular migratory fish runs — faces complex welfare challenges.
The Zambezi Valley — particularly Zimbabwe's Hwange, Mana Pools, and Zambia's Lower Zambezi — holds some of Africa's highest elephant densities. Welfare challenges include:
Kapenta (freshwater sardines) in Lake Kariba and the Zambezi support massive industrial fishing operations. Night fishing with lights attracts millions of fish simultaneously — seine net hauls kill fish by crushing and oxygen deprivation. The scale is enormous: thousands of tonnes annually. Fish welfare science indicates these are sentient animals capable of stress responses.
Lake Kariba — created by the 1959 Kariba Dam — flooded 5,000km² of Zambezi Valley. Operation Noah rescued thousands of stranded animals during filling, but millions of fish and invertebrates died. Today, Kariba's dam face is deteriorating — a potential catastrophic release would affect millions of downstream animals from Mozambique to the Indian Ocean.
The Zambezi Delta in Mozambique was severely damaged by water diversion upstream. Reduced flows have shrunk the delta from 12,000km² to less than 5,000km². Mangroves have died; fish nursery habitat has collapsed; migratory shorebirds have lost feeding grounds. Restoration of environmental flows is both a conservation and animal welfare priority.
The Zambezi holds dense crocodile and hippo populations. Both species face illegal hunting, electrocution from poorly maintained powerlines near water, and snaring. Human-hippo conflicts increase as habitat shrinks — retaliatory killing is common. Crocodile attacks on humans lead to retaliatory killing of entire local populations in affected areas.