Seagrasses provide valuable ecosystem services–benefits to humans–but are now being lost globally at rapid rates due mainly to anthropogenic stressors. Ecosystem services are defined as the benefits that humans derive from the environment, in this case, from seagrass ecosystems. This report provides an initial assessment of seagrass ecosystem services in seven countries of West Africa, including Mauritania, Senegal, The Gambia, Guinea Bissau, Guinea, Cape Verde and Sierra Leone.