摩尔曼斯克城市化地区湖泊浮游植物水质评价

D. Denisov
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引用次数: 0

摘要

对摩尔曼斯克湖的浮游植物进行了首次全面研究。藻类和蓝藻原核生物群落的种类组成和结构与文献相比存在显著差异。在一些湖泊中,观察到优势类群的年变化,这反映了水生生态系统的高度不稳定。观测到的变化的主要原因应被认为是由于人为水污染引起的水化学参数的急剧变化,主要是营养物的浓度动态变化。另一个重要因素是一些微量元素的毒性作用,包括重金属;所研究的水库水中的浓度可能比参考资料高出许多倍。谢苗诺夫斯科耶湖以蓝藻原核生物为主,并发现了引起水华的潜在有毒物种。会议指出,北极地区城市化地区浮游植物群落具有很高的生物指示潜力,在解决评价水质和使水资源的人为负荷正常化的问题时必须考虑到这一点。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Phytoplankton of the Murmansk lakes in the urbanized territories water quality assessment
The first comprehensive studies of phytoplankton of the Murmansk lakes have been carried out. Significant differences in the species composition and structure of algae and cyanoprokaryotes communities comparing with references were revealed. In some lakes, an annual change in the dominant taxa was observed, which reflects a high degree of destabilization of the aquatic ecosystems. The main reason for the observed changes should be considered a sharp change in hydrochemical parameters, primarily – the concentration of nutrients dynamics, because of anthropogenic water pollution. A significant factor is also the toxic effect of a number of trace elements, including heavy metals; the concentration in the water of the studied reservoirs can be many times higher than the references. Cyanoprokaryotes are dominated in Semenovskoye Lake, and bloom-causing potentially toxic species have been revealed. A high bioindicative potential of phytoplankton communities in the urbanized territories of the Arctic zone was noted, which must be taken into account when solving the problems of assessing water quality and normalizing the anthropogenic load on water resources.
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