The bacterioplankton community structure in Wujin River was investigated by terminal restriction fragment length polymorphism(T-RFLP) technique in combination with 16S rRNA clone library analysis.The T-RFLP fingerprints analysis shows high diversity and low evenness among the bacterioplankton community.A 16S rRNA gene clone library was also constructed.The results based on Ribosomal Database Project Ⅱ show that there were relatively abundant bacterial species in Wujin River and the predominant bacteria belo...