Dynamics of Microbial Communities in an Earthen Shrimp Pond during the Shrimp Growing Period

Correlations between the activities of microbial communities and water quality in an earthen pond were investigated monthly during the shrimp growing period. The TAN gradually decreased compared to the beginning time, thereby resulting in an overall decrease of 81.3%. In contrast, the overall nitrate concentration increased 46.3% over this same period. Microbial community analysis using PCR-DGGE showed that changes in community dynamics that occurred during the shrimp growing period might be correlated to water quality. Overall, there were 3 groups of microbial dynamics. The 1 st