Uganda's Freshwater Fisheries Research Organization monitored fishing conditions and the balance of flora and fauna in Uganda's lakes. In 1989 this organization warned against overfishing, especially in the Lake Kyoga region, where the combined result of improved security conditions and economic hardship was a 40- percent increase in commercial and domestic fishing activity. A second environmental concern in the fishing industry was the weed infestation that had arisen in lakes suffering from heavy pollution. In late 1989, officials were relatively unsuccessful in restricting the types and levels of pollutants introduced into the nation's numerous lakes.
A few fishers used explosives obtained from stone quarries to increase their catch, especially in the Victoria Nile region near Jinja. Using byproducts from beer manufacturing to lure fish into a feeding area, they detonated small packs of explosives that killed large numbers of fish and other aquatic life. Several people drowned in the frantic effort to collect dead fish that floated to the surface of the water. Environmental and health concerns led the government to outlaw this form of fishing, and local officials were seeking ways to ban the sale of fish caught in this manner. Both bans were difficult to enforce, however; fishing with dynamite continued in 1989 despite the widespread notoriety attached to this activity.