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Candaba Swamp

General Information
Wetland type
complex of freshwater ponds, swamps and marshes
Province Pampanga & Bulacan
Municipality
Candaba, Pampanga; San Miguel & San Ildefonso, Bulacan
Estimated area (has)
32,000
Coordinates 15°05'N 120°53'E
Altitude 11 masl
Source of information
Directory of Philippine Wetlands Vol I & II, PBCPP, Key Conservation Sites in the Philippines, Philippines National Reports on Wetlands
Biological Diversity
Land cover
Most of the flood plain is under cultivation for rice and other crops, and there are some patches of Nypa fruticans and mangroves in surrounding areas.
Restricted range, endangered and threatened species fauna
Acrocephalus sorghophilus, Porphyrio porphyrio, Aythya fuligula, Aythya baeri, Aythya ferina, Anas clypeata, Anas querquedula, Anas penelope, Anas luzonica, Anas acuta, Dendrocygna arcuata, Casmerodius albus, Pelecanus philippensis
Ecosystem Diversity Slow flowing rivers and streams; freshwater ponds (under 8 ha), marshes, swamps (palustrine); water storage, reservoirs, dams; seasonally flooded grassland. Savannah, palm savanna; rice paddies; flooded arable land, irrigated land; Palustrine
Migratory Pathway
Formerly an extremely important staging and wintering area for ducks, especially in October and November when the swamp regularly supported between 5,000 and 10,000
Socio-Economic
Transboundary human activities
Fishing and extensive mariculture, agriculture (mainly rice-growing), residential
Tenure Mixture of state and private ownership
Threats
Intrinsic source of change
Conversion into fish ponds and agricultural purposes, hunting of birds.
External source of change
Uncontrolled withdrawal of groundwater causes saltwater intrusion in some coastal areas of the bay, siltation and the introduction of exotic fish species
Interventions
Conservation status This is a Ramsar site but not a protected area.
Development Projects In 1994, an action plan was developed for the conservation of the swamp and its waterbirds