Photo: G. Pascal Zachary
Although fish farming has taken off in South America and Asia, it’s had a fitful beginning in Africa, says Zachary. “In theory, it ought to work, but in practice the fish die or don’t grow.” While differences in climate or failing to follow instructions may be contributing factors, he says, “most people believe it’s because fish feed and other inputs are expensive, so there’s the temptation to adulterate them.” Here, a trainer from the United States [left] shows a Uganda fish farmer some aquaculture techniques.















G. Pascal Zachary
is the author of Bush’s biography, Endless Frontier (1997), and the editor of The Essential Writings of Vannevar Bush (Columbia University Press, 2022). He has taught at Stanford University, UC-Berkeley and Arizona State University.
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