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2013 (Vol. 5, Issue: 11)
Article Information:

Physico-chemical Parameters and Macroinvertebrates Fauna of Ona River at Oluyole Estate, Ibadan, Nigeria

I.J. Anago, I.K. Esenowo and A.A.A. Ugwumba
Corresponding Author:  I.J. Anago 

Key words:  Macroinvertebrate fauna, Ona River, physico-chemical parameters, pollution, , ,
Vol. 5 , (11): 671-676
Submitted Accepted Published
August 12, 2013 August 24, 2013 November 20, 2013
Abstract:

The Physico-chemical parameters and macro invertebrate fauna of Ona River were studied from November, 2008 to January, 2009. Surface water and benthic samples were collected weekly from three sampling stations along the river. The range values of Surface water temperature was 20-29C, Dissolved Oxygen (DO) 0.00-6.67 mg/L, Biological Oxygen Demand (BOD) 0.00-3.7 mgO2/L, Conductivity 196-308 us/cm and Alkalinity 40-120 mg/L. Analysis of Variance (ANOVA) showed significant difference (p<0.05) in the mean values of conductivity and total dissolved solids between stations. A total of 10 taxa comprising of 1317 individual species were recorded. The aquatic insect larvae (Chironomus sp.), gastropods (Physa sp.) and (Melaniodes tuberculata) encountered. The high value of BOD and dominant of the Chironomus sp. and Melaniodes tuberculata revealed that Ona River at Oluyole Estate is polluted and is not fit for drinking by water quality standard.
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  Cite this Reference:
I.J. Anago, I.K. Esenowo and A.A.A. Ugwumba , 2013. Physico-chemical Parameters and Macroinvertebrates Fauna of Ona River at Oluyole Estate, Ibadan, Nigeria.  Research Journal of Environmental and Earth Sciences, 5(11): 671-676.
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ISSN (Online):  2041-0492
ISSN (Print):   2041-0484
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