Transactions of KarRC RAS :: Scientific publications
Transactions of KarRC RAS :: Scientific publications

Transactions of KarRC RAS :: Scientific publications
Karelian Research Centre of RAS
ISSN 1997-3217
Transactions of KarRC RAS :: Scientific publications
Editorial committee Editorial Office Statute For authors For reviewer Russian version
Transactions of KarRC RAS :: Scientific publications

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SCIENTIFIC PUBLICATIONS
Т.С. Шелехова, Н.В. Крутских.
Геохимические особенности и состав диатомовых комплексов донных осадков р. Шуи (Республика Карелия)
// Труды КарНЦ РАН. No 6. Сер. Экологические исследования. Петрозаводск: КарНЦ РАН, 2013. C. 76-90
Key words: bottom sediments, assessment of condition, diatom complexes.
Based on the results of the integrated study of heavy metal concentrations and analysis of diatoms from subsurface bottom sediments, the contamination of the lower Shuya River and the effect of toxic substances on diatom complexes there were assessed. As heavy metal concentations rise, the percentage of halophilic organisms increases considerably, some mesohalobic species emerge and some planktonic diatoms of the genus Aulacoseira sp., ousted by the more tolerant species Aulacoseria granulata var. angustissima, Melosira varians, Navicula cryptocephala, N. rhyncocephala and N. viridula, and by many species of the genus Nitzschia sp., become less abundant or “drop out” from the community. Geochemical characteristics and diatom complexes were found to be related to various environmental factors such as river bed properties and the type of human-induced load.

trudy_2013_6_076-90.pdf (959 Kb, total downloads: 91)



  Last modified: January 27, 2014