By Lilian Ntege
Fish rearing, also known as aquaculture, is one of Uganda’s fastest-growing agricultural ventures. With dwindling stocks in natural lakes due to overfishing and pollution, many farmers are turning to ponds as a sustainable alternative. Beyond food, fish rearing has proven to be a profitable business for households and communities.
For many farmers, fish rearing is more than food, it is a livelihood.
Elizabeth Nassuna, a fish farmer from Wakiso District, began with one pond of Nile tilapia. “In the beginning, it was tough,” she recalls and add: “I lost nearly half my fish because I did not know how to manage water quality and feeding. But after attending training sessions, I learnt about stocking, feeding with pellets, and maintaining the pond. Now, I harvest twice a year, and it has become a steady source of income in retirement.”
Similarly, Fred Mukasa from Namutumba ventured into catfish rearing after retiring. “I wanted something to keep me busy and supplement my pension,” he says, adding: “Catfish grow faster and tolerate different conditions, though they eat a lot. At first, neighbours doubted me, but later they asked how to build ponds too. Beyond money, I am proud to provide protein-rich food for my community.”
Economic benefits of fish rearing
Aquaculture contributes directly to household incomes and local economies. Farmers earn money not only from selling fresh fish but also from value addition such as smoking, drying, and filleting. Hotels, restaurants, and roadside markets provide ready buyers, while processing plants create export opportunities.
Fish rearing also creates jobs – pond attendants, feed suppliers, equipment makers, transporters, and traders all benefit. A well-managed pond of 500 square metres can yield up to 1,000 kilograms of fish per cycle. At an average market price of UGX 10,000 per kilogram, a farmer can earn up to UGX 10 million per harvest.
For rural communities, fish farming is not just food; it is a driver of empowerment.
Nutritional benefits
Fish is often called the “poor man’s beef,” but it is a powerhouse of nutrition. It provides high-quality protein that is easily digestible, essential for children, expectant mothers, and the elderly.
Omega-3 fatty acids promote heart and brain health. Vitamins A, D, and B12 strengthen immunity and vision. Calcium and phosphorus from small fish eaten whole improve bone health.
In Uganda, where malnutrition remains a challenge, increasing access to affordable fish can be life-changing. Pond fish ensures that even landlocked communities enjoy a steady supply of this vital food.
Environmental advantages of aquaculture
Aquaculture also has environmental benefits when practised responsibly. Producing fish in ponds reduces pressure on natural lakes and rivers, allowing wild stocks to recover. Farmers can select species such as tilapia and catfish to ensure sustainability. Ponds built near water sources can support irrigation, while nutrient-rich pond mud fertilises gardens.
In a world where natural stocks are under threat, aquaculture provides a sustainable alternative.
Pond fish versus lake fish
For many consumers, the debate between pond-reared and lake-caught fish centres on taste and texture.
Lake fish from Victoria or Kyoga often have a firmer texture and stronger flavour because they feed on natural foods and move widely, which strengthens their muscles. Pond fish, on the other hand, tend to have a milder flavour and softer texture because their diet is controlled and movement limited. Some prefer pond fish for tenderness, while others prefer lake fish for its natural taste. Both are rich in nutrients.
How to construct a fishpond
For beginners, constructing a pond is the first step. Choose a flat area with clay soil that holds water well, near a water source but safe from floods. A starter pond measures 20 by 10 metres, with a depth of 1–1.5 metres. Excavate the soil and slope the bottom gently towards an outlet. Install an inlet pipe for clean water and an outlet for harvesting. Apply agricultural lime to neutralise acidity, then add organic manure to encourage plankton. Stock fingerlings from certified hatcheries at a rate of 2–3 per square metre.
Regular feeding with pellets, water monitoring, and protection from predators ensure healthy growth. Depending on the species, fish are read y for harvest in 6–9 months.
Future of fish rearing
With increasing demand for affordable and nutritious food, fish rearing will remain vital in Uganda’s food systems. Farmers like Nassuna and Mukasa show that with training and resilience, aquaculture can transform lives. As consumers appreciate both pond and lake fish, the market will keep expanding.
Ultimately, fish is more than food. From flesh to by-products, every part contributes to nutrition, livelihoods, or industry. With aquaculture bridging the gap between demand and sustainability, the future looks promising for fish farmers and consumers alike.
