Sale of fish at the central fish market of Bujumbura. - - Monitoring Burundi's fish Stocks in Lake Tanganyika. The U.N. Food and Agriculture Organization (FAO) assisted Burundi's Service de pà?hes in 1977 with a $36,000 Technical Cooperation Programme (TCP) project. The 6-month TCP project was prepared to train two biologists of the Service de pà?hes in sampling methods developed by a fishery research project and in interpreting the derived statistical data. The work included taking samples twice a month from the purse-seine catch sold at the central fish market in Bujubura and examining them in the laboratory. The results of the investigation were tabulated and processed by a computer. The samples also served to determine the biological parameters-growth, mortality rate, etc., - necessary for a better understanding of the effect on stocks of intensive exploitation. Similarly, the two biologists monitored the stock of non-industrial traditional fishery so that it could be properly managed and not become overfished.