A Study of Phytoplankton Distribution in Al-Kabir Al-Shamali River Connected with Nutrients (NO3 -- NO2 -- NH4 +-PO4 ---) Concentration Changes


Abstract in English

This study was carried out during the period 2011–2010 for 12 months. 110 species of phytoplankton in Al-Kabir Al-Shamali River were identified including 4 species of Euglenophyta, 15 species of Cyanophyta, 49 species of Chrysophyta, 40 species of Chlorophyta and 2 species of Pyrrophyta. Some physicochemical parameters of water were determined. Some of them were the temperature which ranged between 10.8–28°C, the pH 7.76–8.2 and the BOD 1.6–10mg/l, while the concentrations of NO3 - ranged between 1.10-250 mg/l, nitrate 0.13-0.01mg/l, and PO4 - ions 0.015–1.05 mg/l. The highest value of ammonium ions was 6.25mg/l and the lowest was 0.011 mg/l. BOD concentrations ranged between 6.06-12.07mg/l.

References used

American public Health Association (APHA) 1985 – Standard Methods for Examination of water and wast water, 16 th edition, U.S.A,1985
Best, G. A., M.R.I.C., PH.D. AND Ross, S.I., I.R.I.C., m.S., A.M.I.W.P.C., M.I.E.S– River pollution studies, Fiirst published, Liversity Press. 1977
BOURRELLY , P. Les Algue d’eau donce . les algus jaunes et brunes . ed. Boubee, Paris , 1968 , 38 p

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