Thailand, 1953 - Characteristics of Tilapia fish shown to Thai fisheries representatives meeting at Bangkhen Experiment station. Visiting expert, Dr. S.W. Ling (holding pipe, centre), FAO Fish Cultists, is briefing provincial fisheries officers and village chiefs on distribution of fingerlings to Thai farmers, one of the steps in fish pond culture projects being advised by technical assistance experts of the Food and Agriculture Organisation of the United Nations (FAO).