The multidimensional chaotic dynamics of zooplankton in mouth area of small tributary of flatland reservoir and its change abnormally hot years

The multidimensional chaotic dynamics of zooplankton in mouth area of small tributary of flatland reservoir in condition of weather and climate anomalies have been analyzed. It is shown, that in backwater zone, in comparison with adjoining river and reservoir areas, significant increasing the parameters of chaotic attractors communities is observed. Weather thermal anomalies lead to violation similarity of structure of zooplankton of hydroecological zones of mouth area of small tributary, decrease their biocenotic specifics and activates ecotone buffer system, which is determines weakened response of zooplankton of frontal zone of tributary mouth area to the anomalously high water temperatures. In conditions of thermal eutrophication the parameters of chaotic attractors communities signal a serious functional impairment in zooplankton and its transition to a state pathology.