Abstract in English

References used

Bandel, K. et Salmeh, E. ١٩٨١. Hydrochemical and Hydrobiogical Research of the Pollution of the Waters of the Amman Zerka Area (Jordan). Schriftenreihe der GTZ, German Agency Technical Cooperation, ٩٤:١-٦٠. Eschborn
Barnes, R. D. ١٩٨٠. Invertebrate zoology, Fourth Edition. Sauders College Philadelphia, Holt-Saunders Japan Tokyo; ١٠٥٣ p
Macan, T. T. ١٩٨٠. Fresh Water Ecology. Edition Longmans, Group Limited London, ٣٤٣ p

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