Abstract:In this study, daily food consumption by silver pomfret in the southern waters of the Yellow Sea evaluated by means of the Mercury Mass Balance Model (MMBM) was about 5.87 g wet/100 g wet/d. Based on its biomass estimated through four acoustic survey cruises, the annual food consumption of this stock in the southern waters of the Yellow Sea during 1998~2000 was about 4.78×105 t, and the conversion efficiency was 1.46%. Esophageal sac observation and stomach content analysis revealed that jellyfish was one kind of food sources of silver pomfret. Esophageal sac was essential digestive organ to mill jellyfish, and scales in stomach were not feeding objects. It is suggested that, in order to elucidate whether jellyfish bloom could be controlled by increasing silver pomfret abundance, further research on the characteristics of feeding process of silver pomfret on jellyfish is needed.
