On the novel possibilities of using phytoplankton as a bioindicator of toxicants in natural waters

The novel algorithms of evaluating four molecular photophysical parameters of the photosynthetic apparatus of photosynthetic organisms (by the example of phytoplankton) were developed. These algorithms open up new possibilities for using photosynthetic organisms as natural bioindicators of the state of ecosystem and particularly for using phytoplankton as an indicator of presence of various pollutants in natural waters. Proposed approaches were tested during evaluation of the photophysical parameters of alga Chlorella Pyrenoidosa under various stress factors, including presence of DMCU and Cu++ Ions.