Abstract

In August of a low-water year (2018), the first correlated data on plant pigments in water column and bottom sediments (BS’s) in the Tsimlyansk Reservoir (Russia) were obtained. In the water column, chlorophyll (Chl) is represented mainly by the active form and its concentrations (16.7–415 µg/L) are characterized by a discrete distribution over the reservoir water area (C_v = 142%). The pigment pool of bottom sediments (4.6–264.0 µg/g of dry weight) contains a high percentage of pheopigments (Pheo) and is distributed over the bottom area more evenly (C_v = 78.9%). The concentrations of the pigments of two biotopes are weakly correlated with each other (r = –0.24), which reflects the complex multidirectional nature of the relationship between them. The average content of Chl in the water column (66.7 µg/L) characterizes the Tsimlyansk Reservoir as hypereutrophic; the average content of Chl + Pheo in BS (93.3 µg/g of dry weight) characterizes it as eutrophic.

中文翻译：

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尖兰斯克水库水和底泥中的植物色素

摘要

在低水年（2018年）的八月，获得了有关尖沙林斯克水库（俄​​罗斯）水柱和底部沉积物（BS）中植物色素的第一个相关数据。在水柱中，叶绿素（Chl）主要以活性形式表示，其浓度（16.7–415 µg / L）的特征是在水库水域中的分布不连续（C _v = 142％）。底部沉积物的颜料池（4.6-264.0 µg / g干重）包含高百分比的色料（Pheo），并在底部区域更均匀地分布（C _v = 78.9％）。两个生物表位的色素浓度彼此之间的相关性很弱（r= –0.24），这反映了它们之间关系的复杂多向性。水柱中Chl的平均含量（66.7 µg / L）将Tsimlyansk水库定性为富营养化。BS中Chl + Pheo的平均含量（93.3 µg / g干重）将其表征为富营养化。