Detailed and extensive research of distant Chukotka lakes ichthyofauna is quite a complicated but attractive challenge from scientific point of view. Besides discovered species common description there is also a number of biochemical experiments carried out, genetic probes taken and an overall lake ecosystem estimation is made. This combines hydrological and hydrobiological research (mostly on fish nutritive base). Important parameters are water-level fluctuations and temperature alterations on different depth levels throughout the year.
Scientists are focused on several lakes in which never seen before complexed fish colonies were discovered last year by Kronotsky reserve staff during an expedition. Loggers which would autonomously measure water level and temperature for the term of several years are to be installed in every pool under observation. Depth levels in different lakes can vary from 60m to 200m hence there should be set about 50 expensive loggers so that all works could be carried out simultaneously.
The solution came with development of new devices named ERG after the research group from Lomonosov Moscow State University which was responsible for the construction. Russian loggers have all the same features as foreign-ones and cost a lot cheaper. Temperature and pressure indicators precision rate is higher than those received from foreign technical equipment. 5 to 7 years of run time guaranteed, over 1mm data logs stored, the equipment is also capable of deep oceanic dive – all this ensures the correct choice of Russian devices is made.
Ichthyologists suppose to discover some new fish breeds that can have remained preserved since preglacier period. This will enable experts clear out several issues about evolution and animals adaptation to natural environmental changes.