The study of seasonal dynamics of plankton trajectories using the duble-smoothing method

To study the seasonal processes in zooplankton of Lake Onega and to determine the changes in the trajectory its values ​​were analyzed by the method of double smoothing. A series of smooth curves describes the trajectories of the changes of the number and biomass of zooplankton and its major groups during the growing season (May to October). They reflect the basic laws of community dynamics, the shape of the trajectories of seasonal dynamics, phenology, or the dates of important events, the periods and the increasing and decreasing rate of plankter amount, the seasonal changes in the community structure.