Central African Mangroves This ecoregion is found in Ghana (Greater Accra and Volta Regions) and Nigeria (Lagos, Ogun, Ondo, Edo, Delta, Bayelsa, and Akuwa Ibom States). The coastline of west Africa is a complex network of rivers, estuarine swamps, and barrier islands. In Nigeria, flood tides can penetrate as much as 45 km inland. Mangroves … More Bight of Benin and Niger Delta, Part 2: Mangroves and Grasslands