The Tonle Sap Great Lake consists of the lake and a flood plain of interconnected streams, ponds, flooded forests and wetland vegetation that supports a rich biodiversity of species including; aquatic plants, fish, birds, mammals, reptiles, amphibians, insects and microorganisms. The extensive biodiversity is linked to seasonal flooding, which sees the Great Lake increase 4 times in area, from 2500 km2 in the dry season to approximately 10000 km2 in the wet season. There is a strong relationship between the people and the natural resources of the Great Lake. It supplies the basis of life to the local people and is one of the largest freshwater fisheries in Asia. The sustainable management of this highly productive ecosystem is necessary to ensure food security and biodiversity conservation for Cambodia.