The ecological report of the macrobenthic community in the intertidal zone of Xicun village,Rushan County,Shandong Peninsula

Based on the material collected during December,2006 to November,2007 from three sampling stations representing respectively the high,middle and low tidal zones,the macrobentic community and its seasonal changes of the intertidal zones of Xicun village,Rushan County,near to the mouth of the Rushankou Gulf,South coast of Shandong Peninsula,are reported in the present paper.The results show that the total mean abundances,biomasses and species numbers of macrobenthos in this intertidal zone are respectively 103.33 ind/m2,7.056 g/m2 and 41 species;those from the high tidal zone(Station R1) are 72 ind/m2,0.64 g/m2 and 21 species;from the middle tidal zone(Station R2) are 115 ind/m2,8.584 g/m2 and 29 species;and from the low tidal zone(Station R3) are 123 ind/m2,11.943 g/m2 and 12 species,respectively.The mean abundances,biomasses and species numbers of the macrobenthos in three tidal zones are distinctly different,of which the mean abundances are R3R2R1,mean biomasses are R3R2R1,species numbers are R2R1R3.Those ecological characters,which are affected by substratum,tide,season and human activity,are different from those of the estuary of the Yellow River in the Bohai Gulf and Jiaozhou Bay west to the Rushankou Gulf along the south coast of the Shoudong Peninsula.This study can help to understand the way of the fishboats and other boats affecting macrobenthic community,and also offer basic data to further research.