If Nile perch is Lake Victoria’s legacy export, tilapia is its future. Over the past decade, floating cage farms have transformed a fishery historically built on wild capture into one increasingly defined by aquaculture — millions of fingerlings fattened in suspended net enclosures rather than netted from open water. Nile tilapia is overwhelmingly the species driving this shift, and the growth curve behind it is one of the steepest in East African agribusiness.

01From nets to cages, in fifteen years

Uganda’s cage aquaculture sector illustrates the scale of this shift better than any other country’s data: production rose from just 800 tonnes in 2006 to more than 138,000 tonnes by 2021, an increase driven almost entirely by Nile tilapia farming. The Ugandan government has licensed more than 2,000 cages across Lake Victoria and Lake Albert combined. Kenya’s uptake has been faster still since starting later — the country legalised cage aquaculture only in 2016, yet by 2023 its Ministry of Agriculture estimated more than 4,000 cages on the Winam Gulf alone, the northeastern arm of Lake Victoria reaching into western Kenya.

Across the lake, cage-based aquaculture now accounts for roughly 25% of all fish Kenya produces, and Lake Victoria’s basin — home to more than 40 million people across the three riparian states — depends on these cage farms for a growing share of nutrition and livelihoods. Cage sizes on the lake range from 8 to 125 cubic metres, stocked at an average density of 350 fish per cubic metre, with a single Kenyan operation producing an estimated 12 million kilograms of fish per production cycle of roughly eight months.

02The commercial model: Victory Farms

Private capital has moved into the sector at meaningful scale. Victory Farms, established in Kenya in 2016, has built a fully vertically integrated tilapia business with production capacity of 10,000 metric tonnes in Lake Victoria, employing more than 700 people directly and operating more than 50 branches across Kenya. The company sells into urban markets targeting middle-class consumers seeking affordable protein — a demand-side bet that mirrors the domestic-demand logic of this series’ Pigs issue, but built on aquaculture infrastructure rather than a smallholder livestock base.

03Kenya’s small footprint in Africa’s aquaculture league table

Despite Lake Victoria’s global fame as a fishery, Kenya remains a minor player in African aquaculture production overall. As of 2022, Egypt accounted for over 67% of Africa’s total aquaculture output, followed by Nigeria (11.2%), Ghana (5.7%), Uganda (4.4%), Zambia (2.9%), Tanzania (1.2%) and Kenya at just 0.96%. Uganda’s 2022 aquaculture production of approximately 101,000 tonnes made it the largest producer in Sub-Saharan Africa outside Nigeria — a striking contrast to Kenya, whose 2024 aquaculture output reached only 33,423 tonnes despite hosting the more internationally recognised Lake Victoria brand.

Source: FAO 2024 data, cited in Kwikiriza et al., Aquaculture, Fish and Fisheries, 2025.

04The cost of speed: disease and water quality

Rapid, under-regulated expansion has brought real biosecurity costs. Fish farming operations on Lake Victoria have suffered losses from pollution and disease that researchers describe as wiping out millions of fish at a time, with common gaps including limited technical expertise in feed management, biosecurity, and disease diagnostics. Few farmers report using veterinary services — a pattern documented not only in Kenya but also in Nigeria’s much larger aquaculture sector, suggesting this is a continent-wide weak point rather than a localised one. Escapes from cages also carry ecological risk: genetic mixing between farmed Nile tilapia and native Oreochromis species has been documented in some African water bodies, threatening the same biodiversity concerns raised elsewhere in Lake Victoria by the introduction of Nile perch decades earlier.

“Fish farming is booming in Lake Victoria, but pollution and disease are wiping out millions.”

05What this means for sourcing and finance

Tilapia is the clearest production-growth story in this series so far — unlike the camel milk-loss opportunity or Nile perch’s capacity-utilisation gap, this is a sector still expanding output rather than one primarily leaking value from an already-produced base. That makes the financing calculus different: capital deployed into tilapia cage aquaculture is betting on continued volume growth, which means biosecurity and disease-management investment is not a nice-to-have but a direct hedge against the loss patterns already documented on the lake.

The regulatory divergence between Kenya, Uganda and Tanzania is itself a factor worth tracking closely: harmonisation efforts, if they materialise, could open new cross-border investment structures, while continued divergence (particularly Tanzania’s more cautious stance) suggests any pan-lake strategy needs country-specific regulatory diligence rather than a single shared compliance approach. The vertically integrated model demonstrated by Victory Farms — production, processing and retail distribution under one structure — appears to be the most resilient template so far for capturing margin across the value chain rather than at a single node.