Eutrophication in the Coastal Waters of SE Asia: Monitoring and Capacity Building (2015-2016)

In this research study, NANO members from five Southeast Asia countries (Thailand, Vietnam, Philippines, Indonesia and Malaysia) will investigate eutrophication enhanced by nutrient load and modulated by residence time. As a result of unsustainable human activities and coastal development, water quality is degrading which results in hypoxia, algal blooms and pollution of the coastal environments. Long?term effects of eutrophication are a grave concern, and collecting data on water quality is essential to improve the sustainability of the coastal environment and provide information for decision makers. The current study will include fieldwork, lab measurements and application of the Land-Ocean Interactions in the Coastal Zone (LOICZ) approach and/or models such as Delft 3D to estimate the eutrophication status using the Unscaled Trophic Index (UNTRIX) and residence time. In addition, remote sensing data will be applied to quantify chlorophyll?a from satellite information where relevant. This provides useful insights that can form the basis to inform stakeholders and give suggestions on how to manage water quality on a local and regional level. Our project will also enhance networking between NANO SEA members and other collaborators.



  • Introduce environmental monitoring methods for coastal waters to provide useful information for coastal development and management.


  • Determine the level of eutrophication in each new study site and evaluate the application of UNTRIX and the application of the LOICZ and/or hydrodynamic models such as Delft 3D for estimating water residence time.
  • Initiate an environmental monitoring system of coastal waters for new participating members, expanding on methods applied by the NANO SEA Regional Research group during 2014.
  • Strengthen human capacity for environmental management and expand the NANO network in SEA countries by knowledge-transfer.

Study location / Sample sites

Field trips are conducted on the following sites in the five countries during the dry and wet seasons: Upper Gulf of Thailand (Thailand), Bachok (Malaysia), Nha Trang Bay (Vietnam), Bolinao (Philippines), Ambon Bay (Indonesia)