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水生生物学期刊
SJR: 0.227 SNIP: 0.575 CiteScore™: 0.24

ISSN 打印: 0018-8166
ISSN 在线: 1943-5991

水生生物学期刊

DOI: 10.1615/HydrobJ.v44.i2.20
pages 16-28

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 Biotechnology and Biodiversity of Fungi Institute of Evolution and Faculty of Natural Sciences University of Haifa, Mt. Carmel, Haifa 31905, Israel

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.