摘要
Zelinka and Marvan system was used as a methodological basis for developing a method for measuring thermoindicator properties of zooplankton species, including the determination of thermal valence and indicator weight. A list of indicator species for thermal conditions in the water body was compiled, and the species, in accordance with the water temperature they prefer, were grouped into cryobionts, cryophiles, thermophiles, and thermobionts. A thermal index was proposed to assess its thermal preference; this index allows seasonal variations in the community, associated with cooling or warming of the water body, to be characterized. The knowledge of the dynamics of the thermal index can largely help one to monitor changes in zooplankton community under thermal impact on aquatic ecosystems. Thermal indication system can be of use in the analysis of the effect of global warming on the biota of water bodies and in the prediction of its future transformation.