• Eutrophication (nutrient pollution), red tides/harmful algal blooms
  
  
• Physiological ecology of marine algae
  
  
• Nutrient uptake and assimilation by phytoplankton and seaweeds
  
  
• Algal nutrition, nitrogen, iron and light influences on phytoplankton physiology
  
  
• Phytoplankton ecology
  
  

Research focus is on nutrient over enrichment of Hong Kong coastal waters and the relationship with red tides/harmful algal blooms and hypoxia found in bottom water.