48
Hambaryan L. R. et al.: Peculiarities of Development of Phytoplankton as an Indicator of the Ecological State in
Modern Hydrochemical Conditions of Masrik River
Fig. 4. The Level of Content of Biogen Compounds in the Water of Masrik
River in 2013 and 2014
Fig. 5. The Level of Content of Heavy Metals in the Water of Masrik River in
2013 and 2014.
In the ores and rocks of Sotk ore deposit there are elements
classified as a hazard of I and II class: respectively the group
of Cd, Pb, As, Hg, Zn and the group of Cu, Co, Ni, Cr, Mo, Sb.
Selected items in the mines are mainly presented as sulfide
minerals which are not water resistant and are broken down in
aerobic conditions forming higher acidic environment with a
high mobility of releasing elements [9, 10]. Consideration of
the content of heavy metals in ores shows the connection
between the prevalence of this elements in ores and their high
content in the waters of the river[9].
Qualitative and quantitative research on the composition of
phytoplankton showed that the main communities were 3
groups of algae: diatoms, green and blue-green. Dominant
group were diatoms. As a part of all groups of algae-dominated
types were eutrophicators, β-mezosaprobs (about 53%),
indicating about the average level of organic pollution of the
river.
As a part of the green algae Spirogira sp. was found, which
ecology is not inherent to the environment of reoplankton, as
these species are widespread in the slowly flowing and
stagnant waters, forming a mass of slime. The prevalence of
this type indicates the presence of fecal contamination in the
water.
3.2. Hydrobiological Study of the Water of Masrik River
The maximum number of phytoplankton in the
investigated areas was 16,854,000 cells / l, and the biomass