Estuaire du Rio Del Rey. 20/05/10; 165000 ha; 8°43' E 4°37' N. The Rio Del Rey Estuary is located in the department of Ndian, at the edge of the Gulf of Guinea, a transboundary site between Cameroon and Nigeria. It hosts approximately 10% of all West African mangroves and half of Cameroon's mangroves. The Rio Del Rey mangroves are a uniquely important habitat for the endemic and threatened species; the Giant frog, Conrana goliath. It is the environment of the West African manatee, staging area for the migratory Lesser flamingo (Phoeniconaias minor), and the Rachel's Malimbe (Malimbicus rachelia) . Its ecosystem embodies a biological, ecological and economical significance. It is of biological importance as a spawning ground and nursery path for which fish stocks. On the other hand it is of ecological value through recharge and discharge of underground water and sediment trapping. The economical aspects of the estuary are preponderant for the neighboring population through the fishing and wood industry. The main threat facing this site is the alien invasive species Nypa fructicans which is dominating the indigenous mangrove species (Avicennia germinans, Conocarpus erectus, Rhizophora harrisonii, Rhizophora mangle et Rhizophora racemosa). Ramsar site no. 1908. Most recent RIS information: 2008.