A modified Secchi disk to measure water transparency in fishponds and determine the amount of plankton is helping smallholders in Sierra Leone to farm fish as part of profit-oriented agribusinesses.
Dr. Mary Lundeba (left) and research assistant Esther Lee sorting fish in northern Zambia. Photo by Chosa Mweemba.
Aquaculture in Zambia is a significant industry, contributing around 30,000 metric tonnes, or 27 percent, of the country’s total fisheries production. Despite this, more efforts to farm fish are needed, as the lack of production is a major cause of Zambia’s low fish consumption, says Dr. Mary Lundeba, a WorldFish scientist and field researcher.
This World Water Day, WorldFish and the International Water Management Institute (IWMI), key partners in the CGIAR Research Program on Fish Agri-Food Systems (FISH), reflect on how improved dam operation and reservoir management can, in some circumstances, mitigate the often negative impacts of large dams on natural fish stocks.