The ecological research of the macrobenthic community in intertidal zone of Hongshiya,Jiaozhou Bay

Three sampling stations within intertidal zone of Hongshiya, Jiaozhou Bay, were set up to explore the community of macrobenthos in Jiaozhou Bay during August 2003 to May 2004 in four seasons. The results show that the total mean density, biomass and species number of macrobenthos in this intertidal zone are 718.67 ind./m2, 123.21 g/m2 and 62 species respectively; those from the high tidal zone (station H1) are 1765.5 ind./m2, 342.53 g/m2, 12 species, those in the middle tidal zone (station H2) are 248 ind./m2, 11.31 g/m2, 35 species, and those in the low tidal zone (station H3) are 142.5 ind./m2, 15.74 g/m2 and 44 species, respectively. The mean densities, biomasses and species numbers of the macrobenthos in three tidal zones are distinct different, of which the mean densities are H1H2H3, mean biomasses are H1H3H2, species numbers are H3H2H1. While the quantitative collection, qualitative collection was also carried out and 44 species were obtained, of which 27 species were not collected during the quantitative collection. There are 89 species in total were collected from Hongshiya intertidal zone.