The effect of phosphorus and nitrogen on chlorophyll-a concentration of algae in Tigris river in Tikrit city in Salah Al- Deen governorate- Iraq | ||
| Tikrit Journal of Pure Science | ||
| Article 1, Volume 17, Issue 3, September 2012, Pages 29-33 | ||
| Authors | ||
| Reidh A. Abdul-Jabar; Asim K. H. Al-gumaily | ||
| Abstract | ||
| The current study is a contribution to investigate the impact of phosphorus and nitrogen on the concentration of chlorophyll-a in algae in the Tigris River in Salah Al- Deen governorate for a period of six months from November 2010 - April 2011. The results showed that the water of the study area was low alkaline. The values of ranging pH varied between (7.62-8.63) in December and January at station 1 respectively. The turbidity was high and ranged between (1.42-57.42) NTU in November and April at the station 1 respectively. The phosphate values were within the allowed limits. They varied between (0.161-1.176) µg P-PO4/L in November at station 1 and December at station 2 respectively, while the value of nitrite was high and ranging between (0.263-7.912) µg NO-NO2/L in November at and April at station 1 respectively. The values of pigments chlorophyll-a were relatively high. They ranged between (0.072-3.965) mg/L in November and February at station 1 respectively. The results of analysis showed that phosphorus and nitrogen have impact on concentration of chlorophyll-a in algae found in the area of the study. | ||
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