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Ecological Study of Some Physical and Chemical Properties of Gharaf River Water and The Quality and Quantity of The Phytoplankton Species | ||
| Journal of College of Education for Pure Science | ||
| Article 1, Volume 7, Issue 1, 2017, Pages 13-30 | ||
| Author | ||
| Abdul-Wahab R. Ayyal | ||
| Abstract | ||
| Three locations were chosen at Gharaf river in Thi Qar governorate southern of Iraq to study the changes monthly of the phytoplankton communities and a study of some physical and chemical properties . Samples were taken for 12 months on the beginning of January to December of the year 2015 . The results were showing that , the river water was hardness and slightly alkaline , also the electrical conductivity and good airation with more concentration of active nitrate in river water , whereas a low concentrations of active phosphate was recorded , whereas the highest values of the Silicate were recorded in the third station (107 - 149) μg /L. It were recorded ( 75) species of algae , the dominance of them are the Bacillariophyceae at the percent (%58.66) , after them the blue green algae(Cyanophyceae) at the percent (%17.2) , the green algae(Chlorophyceae) at the percent (%12) ,Euglenophyceae (%2.66) and Dinophyceae at the percent (%1.33) . A seasonal and geographical variations were noted in the total number of phytoplankton by two increases appeared during spring and autumn ,and the total number of phytoplankton ranged between (3.46 – 13.5) cell x103/cm3. | ||
| Keywords | ||
| Gharaf river; phytoplankton; Physical and Chemical properties | ||
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