00756naa#a2200181#i#450# EN\\bibl\112398 20260118200822.7 2311-1402 20210625b2021####ek#y0engy0150####ca RUS RU Approach to optimizing ecological monitoring of water quality using indicators of constancy of higher water vegetation (using example of upper course of white river in Bashkortostan republic) Journal article Nizhnevartovsk Nizhnevartovsk State University 2021 4 с. Journal article local Общая экология. Биоценология. Гидробиология. Биогеография. 574 RUS Chaus Boris Yu vestnik.nvsu.ru