Spectral characteristics of the autotrophic component of suspended matter in the lakes of the National Park “Narochansky”
https://doi.org/10.29235/1561-8323-2019-63-3-325-330
Abstract
The studies on 32 lakes of the National Park “Narochansky” were aimed both at studying quantitative and qualitative characteristics of the autotrophic component of plankton and at finding their correlation with the data of spectral analysis of pigment composition. On the basis of the chlorophyll content in the summer season (July–August), the main part of the sampled lakes can be attributed to the mesotrophic type, 2 lakes – oligotrophic, 10 – eutrophic. The content of chlorophyll-ɑ in the lakes ranged from 0.3 to 55.2 μg/l, seston – from 0.3 to 29.8 mg/l. Pigment indices, reflecting the state of planktonic producers, did not change significantly depending on the trophic state of the lake. However, in more trophic waters, the absorption spectra are written more clearly; accordingly, the indices appear to be more reliable and informative.
Keywords
lakes of National Park “Narochansky”,
pigment indices,
absorption spectra,
chlorophyll,
seston,
dissolved oxygen
Supporting agencies: The study is partially sponsored by the Belarusian Republican Foundation for Fundamental Research.
About the Authors
V. S. Smolskaya
Belarusian State University
Belarus
Belarus
Smolskaya Volha Sergeevna – Junior researcher
4, Nezavisimosti Ave., 220030, Minsk, Republic of Belarus
H. A. Zhukava
Belarusian State University
Belarus
Belarus
Zhukava Hanna Anatolievna – Ph. D. (Biology), Associate professor
4, Nezavisimosti Ave., 220030, Minsk, Republic of Belarus
B. V. Adamovich
Belarusian State University
Belarus
Belarus
Adamovich Boris Vladislavovich – Ph. D. (Biology), Associate professor, Head of the Laboratory
4, Nezavisimosti Ave., 220030, Minsk, Republic of Belarus
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