Phytoplankton structure and microcystine concentration in the highly eutrophic Nero Lake

被引：15
|
作者：
Babanazarova, O. V. [1 ]
Kurmayer, R. [2 ]
Sidelev, S. I. [1 ]
Aleksandrina, E. M. [1 ]
Sakharova, E. G. [1 ]
机构：
[1] Yaroslavl State Univ, Yaroslavl 150057, Russia
[2] Austrian Acad Sci, Inst Limnol, A-5310 Mondsee, Austria
来源：
WATER RESOURCES | 2011年 / 38卷 / 02期
基金：
俄罗斯基础研究基金会;
关键词：
planktotrichaetic complex of blue-green algae; highly eutrophic water body; microcystines; CYANOBACTERIA; PLANKTOTHRIX; DIVERSITY; ABUNDANCE; GENOTYPES; WANNSEE; SHALLOW; WATERS; ALGAE;
D O I：
10.1134/S0097807811020023
中图分类号：
TV21 [水资源调查与水利规划];
学科分类号：
081501 ;
摘要：
The results of observations of some abiotic (water transparency, light intensity, depth, biogenic element concentrations) and algological (chlorophyll concentration, phytoplankton abundance and biomass, the concentration of microcystines-toxins of blue-green algae) characteristics of Lake Nero are given for study periods of 1999-2004 and 2005-2007. Variations of these characteristics in the latter period are shown to be significant. The lake phytoplankton is found to pass in a A << catastrophic" manner to monodomination of planktotrichaetic complex of blue-green algae. High-performance liquid chromatography was used for the first time to determine the concentration of microcystines MC-LR and MC-RR in Lake Nero seston. The presence of these types of microcystines in samples was confirmed by mass-spectrometry. A statistically significant correlation was found to exist between the total concentrations of microcystines and the biomass of species of Microcystis genus, suggesting the possible toxicity of representatives of this type of algae in Lake Nero.
引用
收藏
页码：229 / 236
页数：8
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