Current state of lakes of a river basin of Yana
The current state of lakes of the basin of the Yana River is considered. The explored lakes have erosive and thermokarst and glacial флювиогляциальное origin, is characterized by the various morphometric indicators. It is established that hollows of all explored lakes were formed in similar conditions what the insignicant coefcient of correlation between the area of the lake and volume of water testies to (r = 0,79).The quality and quantitative indices of water including size рН, gas and pokomponentny structure, the general indicators of water, heavy metals and organic pollutants are dened. It is revealed that water of the explored lakes isn’t polluted by ions of heavy metals and organic pollutants, I am poor in biogenous elements. The low mineralization of water and gidrokarbonatno-sodium salt composition of water are characteristic of the explored lakes of the yansky pool. The fauna of zooplankton is presented by generally widespread types in a palearktika and a golarktika. Zooplankton of the explored lakes of the Yana River consisted of 22 types belonging to 3 systematic groups. A specic variety, number dened kolovratka, biomass the lowest craysh. The last have been presented by small hidorida, bosminy, oligotrofny small water eas. Biomass of the prevailing forms of plankton which rather large, predatory golarktichesky vetvistousy Crustacea and juveniles a copepod generally inuenced are calculated.Ground deposits the yanskikh of lakes are presented by generally dense Ils of gray, dark gray, dark olive and olive color of low power. It is revealed that on geochemical and agrochemical indicators lake deposits of the lake signicantly differ lake deposits of a at kriolitozona of the Central Yakutia. Very high ratios of carbon to nitrogen are established that indirectly demonstrates slowness of processes of a mineralization of organic substances in deep cold water lakes