The findings are presented of a study carried out in Ogheye, Delta State, Nigeria to develop and implement cheap and viable research methods to study costs, earnings and expenditure structures of women involved in the artisanal fisheries sub-sector. Information was collected on the following issues: investment costs, operational costs and sources of funds; women's income; the profitability of women's activities; social obligations and the structure of expenses; marketing channels; and, the role and structure of socio-professional organizations. The survey showed that the women are involved in 3 combinations of activities: fishing-processing-marketing; fishing-marketing; and, processing-marketing.