Nghia Hung (12015)
Vietnam, Asia
Site overview
KBA status: confirmed
Year of last assessment: 2012
National site name: Nghia Hung
Central coordinates: Latitude: 19.9667, Longitude: 106.1667
System: marine, terrestrial
Elevation (m): 0 to 2
Area of KBA (km2): 85.23834
KBA classification: Global/Regional TBD
Legacy site: Yes
Site details
Site description: The Nghia Hung district has 12 km of coastline and is bordered to the west and east by the Day and Ninh Co Rivers. There are three coastal communes in the district; Ngia Trung, Nam Dien and Nghia Phuc.
Rationale for qualifying as KBA: This site qualifies as a Key Biodiversity Area of international significance because it meets one or more previously established criteria and thresholds for identifying sites of biodiversity importance (including Important Bird and Biodiversity Areas, Alliance for Zero Extinction sites, and Key Biodiversity Areas) The site has been reviewed and re-confirmed as a KBA in the process of compiling the revised 2011 CEPF Ecosystem Profile for the Indo-Burma Hotspot.
Additional biodiversity: During April 1994, it was estimated that more than 30,000 shorebirds were in Nghia Hung district. A high tide roost of shorebirds has been located on the southernmost offshore island: three high-tide counts were made on the island and a maximum of 1774 shorebirds were recorded during May 1996. Non-bird biodiversity: Can also be classified as A4i for containing 2.1% of the world population of Tringa erythropus.
Habitats
Summary of habitats in KBA: Nghia Hung supports 13 different habitats and is one of the most diverse areas in the Red River Delta. Adjacent to the Ninh Co estuary is an area with sandy beaches, dunes and saltmarsh. Some of the dunes have been afforested with Casuarina equisetifolia, to the west of which is an area with crab ponds suporting a reed bed of Phragmite sp. Along the Ninh Co River, there is an area of salt ponds. Beyond the main dike lies an intertidal area of 3500 ha, 60 % of which is covered with the mangrove Kandelia candel. Five kilometres offshore, there are two small sandy islands, covering 25 ha, which supports dunes. The southern island has a small area of saltmarsh and Casuarina equisetifolia.
Land use: fisheries/aquaculture (74%) | not utilised (20%)
| IUCN Habitat | Coverage % | Habitat detail |
|---|---|---|
| Forest | 21 | |
| Marine Neritic | 20 | |
| Artificial - Aquatic | 24 | |
| Marine Coastal/Supratidal | 15 | |
| Marine Intertidal | 20 |
Threats
Summary of threats to biodiversity at KBA: The main threats to biodiversity at Nghia Hung are hunting, over-exploitation of marine products and disturbance.
| Threat level 1 | Threat level 2 | Threat level 3 | Timing |
|---|---|---|---|
| Agriculture & aquaculture | Marine & freshwater aquaculture | Industrial aquaculture | Ongoing |
| Biological resource use | Hunting & collecting terrestrial animals | Intentional use (species being assessed is the target) | Ongoing |
| Human intrusions & disturbance | Work & other activities | Ongoing | |
| Natural system modifications | Other ecosystem modifications | Ongoing | |
| Transportation & service corridors | Roads & railroads | Ongoing |
Additional information
References: BirdLife International and the Forest Inventory and Planning Instutute (2001) Sourcebook of existing and proposed protected areas in Vietnam. Hanoi, Vietnam: BirdLife International Vietnam Programme and the Forest Inventory and Planning Institute.BirdLife International (2001) Threatened birds of Asia: the BirdLife International Red Data Book. Cambridge, UK: BirdLife International.Pedersen, A. and Nguyen Huy Thang (1996) The conservation of key coastal wetland sites in the Red River Delta. Hanoi: BirdLife International Vietnam Programme.