
| Agricultural Development and Vector-Borne Diseases (FAO - HABITAT - UNEP - WHO, 1996, 91 p.) |
| Topic C: Vector habitats |

Slide C.12 Malaria vector
habitats: coastal lagoons with brackish water (Anopheles sundaicus) in
Malaysia
Some malaria vectors (Anopheles sundaicus with a distribution from the East coast of India to Viet Nam and the Indonesian islands; A. albimanus on the Pacific coast of Central America) require a brackish water environment for their larval stages. Managing the water flows in mangrove areas and estuaries to ensure that salt levels are maintained outside of the range needed by these species help to keep vector populations down. A lot of work was done in the Dutch East Indies, present-day Indonesia, in the 1930s, in connection with ponds for shrimp culture. Work in El Salvador (Ticuiziapa Estero) by Frederickson in 1986-1987 (as part of the USAID Vector Biology and Control Project) demonstrated that environmental management (removal of a sand bar, allowing the drainage of water from the estuary at low tide, and blocking the influx of sea water at high tide) can provide a lasting solution to malaria transmission.
Reports of the Vector Biology and Control Project, including the reports on the environmental management activities, belong to the grey literature. Information can, however, be obtained from the PEEM Secretariat, WHO, Geneva, Switzerland, where a full set of these reports is available.