Tracing Seasonal Changes in Relative Utilization of Seston and Fish-farming Wastes by the Green Mussel Perna Viridis using Fatty Acid and Stable Isotope Analyses
- Siu Gin CHEUNG (Principal Investigator / Project Coordinator)Department of Chemistry
- Kam Shing Paul SHIN (Co-Investigator)
DescriptionFish-farming activities in coastal waters release wastes from uneaten feed and faeces that cause deterioration of the water quality and benthic ecosystem. Using fatty acid and stable isotope analyses, the researchers’ previous study has shown that the green musselPerna viridiscan utilize these wastes in addition to seston in water as nutrient sources. As mussels are selective feeders that preferentially select phytoplankton, seasonal changes in the food regime may affect the relative utilization of fish-farming wastes. This study will use fatty acids and stable isotopes as tracers to study the relationship between seasonal changes in the food regime and the relative utilization of seston and fish-farming wastes by the green mussel. The results will provide useful information on further assessment of the applicability of using mussels to remove fish-farming wastes.
|Effective start/end date||1/04/07 → 1/04/09|