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ISSN: 0018-8166 Print
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DOI: 10.1615/HydrobJ.v44.i2
Pages: 104
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DOI: 10.1615/HydrobJ.v44.i2.20
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Article price - $50.00 |
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Assessment of Water Quality in the Yarqon River (the Central Israel) in terms of the Methods of Bioindication and Bioassay
M. Tavasi
Institute of Evolution, Haifa University, Mount Carmel, 31905 Haifa, Israel
S. S. Barinova
Institute of Evolution, Haifa University, Mount Carmel, 31905 Haifa, Israel
Ye. Nevo
Institute of Evolution, Haifa University, Mount Carmel, 31905 Haifa, Israel
Solomon P. Wasser
International Centre for Cryptogamic Plants and Fungi, Institute of Evolution, University of Haifa, Mt. Carmel, Haifa, Israel; and N.G. Kholodny Institute of Botany, National Academy of Sciences of Ukraine, Kiev, Ukraine
ABSTRACT
Water quality in the Yarqon river was assessed in May − June 2005 using the methods of bioindication and bioassay. Water quality index (WQI) was also calculated. Among 147 found species of algae and Cyanoprocaryota, 131 species were indicators of the environmental conditions. The saprobic index S ranged from 1.90 to 2.75 (III−IV classes of water quality). It has been found that household sewage from the Kane tributary essentially influence water quality in the Yarqon river. Intensive processes of self-purification within the (β-α-mesosaprobic zones are registered in the river.
pages 16-28
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