The main factor determining the uniqueness of the mouth areas of reservoir tributaries is the re-gulation of the receiver level. Mouth areas and reservoirs in general are anthropogenically stabilized ecosystems. It is shown that for plankton communities the edge effect manifests itself in the frontal zone of the mouth area, and for contour communities (benthos and phytophilic fauna) the mouth area is characterized as an ecocline. In abnormally hot years, a weakened response of plankton communities was observed in the mouth area compared to the reservoir, and communities of phytophilic macroinvertebrates were most stable in the reservoir.

中文翻译：

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低地水库支流河口区水生生物发育条件特征

决定水库支流河口区域独特性的主要因素是接收器水位的调控。河口地区和水库一般是人为稳定的生态系统。结果表明，对于浮游生物群落，边缘效应体现在口区的锋区，而对于等高群落（底栖动物和亲植物动物群），口区的特征是生态斜层。异常炎热年份，河口区浮游生物群落响应较水库减弱，水库内植生大型无脊椎动物群落最为稳定。