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Hydrobiological Journal
SJR: 0.227 SNIP: 0.575 CiteScore™: 0.24

ISSN Print: 0018-8166
ISSN Online: 1943-5991

Hydrobiological Journal

DOI: 10.1615/HydrobJ.v34.i2-3.60
pages 59-65

Chemical Composition of Bottom Sediments and the Zoobenthos of the Daugava River

M. Kljavins
Institute of Biology Academy of Sciences of Latvia, Riga, Latvia
V. Rodionov
Institute of Biology Academy of Sciences of Latvia, Riga, Latvia
E. Parele
Institute of Biology Academy of Sciences of Latvia, Riga, Latvia
U. Tsinis
Institute of Biology Academy of Sciences of Latvia, Riga, Latvia

ABSTRACT

Bottom sediments and macrobenthos communities of the Daugava River were studied to assess its pollution with heavy metals (Cd, Cu, Co, Pb, Ni) and organic substances. A certain relation was revealed between concentrations of pollutants, on the one hand, and the organic carbon content of sediments and the composition of the zoobenthos, on the other. It was found that bottom sediments can serve as reliable indicators of pollution.


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