Phase synchronization of chlorophyll and total phosphorus oscillations as an indicator of the transformation of a lake ecosystem

The ecosystem of the Naroch Lakes (Belarus) includes three water bodies, Lake Batorino, Lake Myastro and Lake Naroch. These lakes have a common catchment area. At the end of the 80 s, the ecosystem of the Naroch Lakes underwent a transformation, during which the nutrient load on the catchment area d...

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Vydané v:Scientific reports Ročník 12; číslo 1; s. 11979 - 10
Hlavní autori: Rusakov, Alexey V., Adamovich, Boris V., Nurieva, Nailya I., Kovalevskaya, Raisa Z., Mikheyeva, Tamara M., Radchikova, Nataly P., Zhukava, Hanna A., Veres, Yulia K., Zhukova, Tatyana V., Medvinsky, Alexander B.
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: London Nature Publishing Group UK 13.07.2022
Nature Publishing Group
Nature Portfolio
Predmet:
704/158
704/158/2445
Aquatic ecosystems
Catchment areas
Chlorophyll
Dreissena polymorpha
Ecosystems
Environmental factors
Frequency dependence
Humanities and Social Sciences
Lakes
multidisciplinary
Nutrient concentrations
Nutrient loading
Oscillations
Phosphorus
Science
Science (multidisciplinary)
Statistical analysis
Synchronization
Trophic relationships
ISSN:2045-2322, 2045-2322
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Popis
Shrnutí:The ecosystem of the Naroch Lakes (Belarus) includes three water bodies, Lake Batorino, Lake Myastro and Lake Naroch. These lakes have a common catchment area. At the end of the 80 s, the ecosystem of the Naroch Lakes underwent a transformation, during which the nutrient load on the catchment area decreased, and the concentration of phosphorus as a limiting factor in these water bodies decreased significantly. At the same time, the Naroch Lakes were exposed to zebra mussel ( Dreissena polymorpha Pallas) invasion. In the mid-90 s, the biological and hydrochemical characteristics of the ecosystem of the Naroch Lakes stabilized. We show here that complex processes associated with the transformation of the lake ecosystem and affecting both trophic interactions in the Naroch Lakes and the influence of environmental factors on them can be represented using a single parameter, the phase-locking index, PLI . In this case, a statistically significant numerical value of PLI characterizes the phase synchronization of two processes, oscillations of the concentration of total phosphorus, TP, and oscillations of the concentration of chlorophyll, Chl. We show that the phase synchronization of these processes occurs only after the stabilization of the ecosystem of the Naroch Lakes. In the period preceding the transformation of the lake ecosystem, there was no synchronization. Numerical evaluation of PLI as a holistic parameter allows us to characterize the transformation of the lake ecosystem as a whole without resorting to study of complex interactions of various factors involved in this transformation.
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ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-022-16111-8