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Abstract

Paper represents the results of our study in Pamir mineral and hot springs. Altogether 134 diatom species (166 with infraspecific taxa) were revealed from 150 periphytonic samples. The correlation of species richness with habitat altitude in the Pamir high mountains was identified with help of the Distance Weighted Least Square method in Statistica 12.0 program. It has been conclude that both global related parameters altitude and temperature can define the algal communities' development in high mountain habitats of Pamir. The special factor, water pH was revealed as regulating parameter for diatom species richness in studied hot and mineral water springs. The infraspecific variability index that we calculated for Pamir mineral springs communities of diatom algae was 1.24, and was highest in comparison of regional high mountain algal floras. Index is increased with habitat altitude and show high adaptation potential of Pamir diatoms.