Reut D. Method and device for measuring the concentration of microplankton

The dissertation is devoted to the issues of reducing the microplankton concentration measurement time in open water by creating a method for automatically determining the concentration of microplankton in a continuous water flow and a device that implements it. The analysis and classification of existing methods and means of measuring the concentration of microplankton organisms in the water of open reservoirs is carried out. New method for the continuous identification and determination of the concentration of microorganisms has been developed. It involves the analysis of the video stream from the microscope, taking into account changes in the content of the field of view of the microscope over time. The database with the parameters that are used to recognize individual classification groups of microorganisms has been developed. A device has been developed for automatic continuous measurement of the concentration of microplankton in open water bodies based on the proposed method. This portable device has enhanced functionality, significantly shorter measurement times compared to other known measuring instruments. The accuracy of measurement by the developed device is estimated. The sources of measurement uncertainties are analyzed.