Legendre P, Baleux B, Troussellier M
Appl Environ Microbiol. 1984 Sep;48(3):586-93. doi: 10.1128/aem.48.3.586-593.1984.
The spatio-temporal dynamics of pollution-indicator bacteria and aerobic heterotrophic bacteria were studied in the sewage treatment lagoons of an urban wastewater center after 26 months of biweekly sampling at eight stations in these lagoons. Robust statistical methods of time-series analysis were used to study successional steps (through chronological clustering) and rhythmic behavior through time (through contingency periodogram). The aerobic heterotrophic bacterial community showed two types of temporal evolution: in the first four stations, it seems mainly controlled by the nutrient support capacity of the sewage input, whereas in the remaining part of the lagoon, it seems likely that the pollution-indicator bacteria are gradually replaced by other bacterial types that are better adapted to this environment. On the other hand, the pollution-indicator bacteria showed an annual cycle which increased in amplitude at distances further from the wastewater source. The main events in this cycle were produced simultaneously at all stations, indicating control of these bacterial populations by climatic factors, which act through physical and chemical factors, and also through other biological components of this ecosystem (phytoplankton and zooplankton). Finally, we use results from this study to suggest a modified design for a future study program.
在城市废水处理中心的污水处理塘中，经过26个月每两周在这些池塘的8个站点采样后，对污染指示菌和好氧异养菌的时空动态进行了研究。采用稳健的时间序列分析统计方法，通过时间顺序聚类研究演替步骤，通过列联周期图研究随时间的节律行为。好氧异养细菌群落呈现出两种时间演化类型：在前四个站点，它似乎主要受污水输入的营养支持能力控制，而在池塘的其余部分，污染指示菌似乎正逐渐被其他更适应这种环境的细菌类型所取代。另一方面，污染指示菌呈现出一个年度周期，其振幅在离废水源更远的距离处增大。这个周期中的主要事件在所有站点同时发生，表明这些细菌种群受气候因素控制，气候因素通过物理和化学因素以及该生态系统的其他生物成分（浮游植物和浮游动物）发挥作用。最后，我们利用本研究的结果为未来的研究计划提出了一个改进设计。
