On the study of the effects of heavy metals on the growth of lake phytoplankton in Yakutsk and its vicinity
https://doi.org/10.31242/2618-9712-2020-25-4-6
Abstract
Our hydrobiological studies revealed the species composition, total abundance and a complex of dominant species of phytoplankton in 11 urban and suburban lakes of Yakutsk. In addition, water samples were collected to determine the concentrations of heavy metal ions (copper, nickel, manganese, zinc). For some chemical components, an excess over the MAC was detected. A data set was compiled from the obtained data. The data set includes 24 quantitative continuous variables characterizing the concentrations of heavy metals and the parameters of phytoplankton development. Through consecutive application of various methods of statistical analysis to the obtained data set, a significant correlation was revealed between the concentrations of heavy metal ions in water and the parameters of phytoplankton growth. It is proved that increased concentrations of zinc and copper cause a decrease in the total abundance of phytoplankton, its species richness, and affect the changes in the composition of dominant species through replacing Cyanoprokaryota species by Bacillariophyta ones. The relevance of studying the effect of heavy metal ions on the living components of the aquatic ecosystem of urban lakes in Yakutsk is confirmed, as well as suitability of phytoplankton as a test object for these studies.
Supporting agencies: This study was performed within the framework of the state task of the Institute of Biological Problems of the Cryolithozone SB RAS for 2017–2020, topic “Fundamental and Applied Aspects of Studying the Diversity of the Plant World of Northern and Central Yakutia,” registration number АААА-А17-117020110056-0.
About the Authors
V. A. Gabyshev
Institute for Biological Problems of Cryolithozone SB RAS
Russian Federation
Russian Federation
GABYSHEV Viktor Alexandrovich, doctor of biological sciences, principal researcher
41 Lenina pr., Yakutsk 677980
Researcher ID: J-7831-2018
O. I. Gabysheva
Institute for Biological Problems of Cryolithozone SB RAS
Russian Federation
Russian Federation
GABYSHEVA Olga Ivanovna, junior researcher
41 Lenina pr., Yakutsk 677980
Researcher ID: K-6082-2018
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Review
For citations:
Gabyshev V.A., Gabysheva O.I. On the study of the effects of heavy metals on the growth of lake phytoplankton in Yakutsk and its vicinity. Arctic and Subarctic Natural Resources. 2020;25(4):81-91. (In Russ.) https://doi.org/10.31242/2618-9712-2020-25-4-6
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