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.
In Sierra Leone, nearly half the population is food insecure and nearly one-third of children under five years old are chronically malnourished. Malnutrition rates are even higher in the poorest and most food insecure districts, such as Tonkolili District in the north.
When WorldFish began working in Sierra Leone on the USAID Feed the Future project in 2015, the inland fish-farming sector was producing nowhere near its potential.
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