Aquaculture species are being domesticated and improved through genetic enhancement. Despite the benefits of improved fish in terms of increased production, there are risks associated with conservation of biodiversity when the introduced strains/species escape in natural waters. This is especially important in Africa which is one of the world’s repository of diverse freshwater fish fauna and home to native tilapias. This proceedings is a useful tool in bringing awareness among African institutions, agencies, planners of the issues involved in improving production through introductions of improved strains/alien species while sustaining the biodiversity.