A Study on Bacterioplankton Community Composition in a Nature Reservoir

Abstract

The relationship between bacterioplankton community composition and environmental factors in a constructed small-scale reservoir was studied. Polymerase chain reaction (PCR) - denaturing gradient gel electrophoresis (DGGE) fingerprinting was used to detect plankton communities. Species composition of the sites was heterogeneous; 60 % of the total species were restricted to single samples and only 2 bands were found in all investigated samples. Clustering analysis illustrated a strong correlation between samples taken from same sites. Canonical correspondence analysis (CCA) results showed that bacterioplankton community composition was primarily correlated with NO3--N and CODCr. Bacterioplankton community composition could reflect the environmental conditions to some extent.