It might seem perverse to chronicle the end of the world through the life cycle of large and unattractive white fish: but this is what Hubert Sauper has triumphantly achieved.

In the early 1960s, some specimens of the Nile perch were introduced into the placid waters of Lake Victoria. These fish - they are indeed Darwin's nightmare - proceeded to eat all the other fauna and flora of the lake. When there was nothing else to eat, they began to eat each other.

Eager as ever to help, the European Union installed subsidised fishing plants by the side of the lake. The result, as Sauper marvellously chronicles, is Armageddon eco-style. The inhabitants of the lake are now impoverished, and the only industry left to them consists of processing the Nile perch and selling it off to Europe.

To make the journey profitable, the planes that collect the fish now come filled up with arms. In addition to destroying the environment, the West has also increased the likelihood of conflict in Africa.