Studies on ecology of benthic community in Funing Bay

Six stations were established to investigate the benthos in funing bay Land reclamation in spring and summer of 2012. 57 species of benthos are indentifided in the two cruises, among which there were 24 species of Mollusca, 19 species of Polychaeta, 9 species of Crustacea. The total benthis density is 407.5 ind/m2 and most of them are the Mollusca(65.6%). The total benthis biomass is 338.44 g/m2 and most of them are the Mollusca (98%).Species number, biomass and density in spring were significantly higher than in summer, and increased from the open sea to inside estuary. Results of Cluster indicate that seasonal succession answer for tht fluctuation in the communities of benthos, while the types of sediment answer for the differences between the the open sea and inside estuary.