Fishery management personnel are more likely to be trained as biologists than as economists or sociologists, even though economic and sociocultural data are required for rational fisheries management. This guide is aimed at helping decision makers identify and collect these types of data from the resource and harvesting sectors of developing country small-scale fisheries. The first three chapters discuss the importance of economic and sociocultural information and outline a minimum set of biological, economic, and sociocultural information requirements. The next three chapters, written expressly with data collection officers in mind, treat in turn data needs, data collection methods, and cost-efficient data collection strategies. Appendices include a list of background information, three data collection forms, and a 111-item bibliography (1954-82).