The ecological and environmental risk analysis of the proposed transfer from Malaysia to Nigeria is based on the guidelines given in the International Council for the Exploration of the Sea’s Code of Practice for the Introductions and Transfers of Marine Organisms (ICES Code). This risk analysis is exclusively based on information gleaned from published research articles and reports on the status of tilapia in Asia, Africa and other geographical regions, including their ecology, invasive status, aquaculture performance, environmental and socioeconomic impacts.