The assessment of physico-chemical parameters of Shiroro Lake and its major tributaries

Kolo, R.J. (1999) The assessment of physico-chemical parameters of Shiroro Lake and its major tributaries. In: 13th Annual Conference of the Fisheries Society of Nigeria (FISON) , 3-8 November 1996 , New Bussa, Nigeria.

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Abstract

The physico-chemical parameters of the surface water of Shiroro Lake and its major tributaries at their entry point to the reservoir were assessed over a period of eighteen months. As in other African inland water bodies there were seasonal variations in the parameters measured. The hydrological regime of the lake, precipitation chemistry, bedrock chemistry and hydro-electric power generation influence and determine the inputs of dissolved organic carbon, nutrient levels and water quality of the lake. The added nutrients to the lake by means of the major tributary rivers and inundation of surrounding areas also influence the water quality of the lake. The wet season mean values for water and air temperature were significantly (P <0.05) higher than dry season mean values in all stations. However, for pH, Dissolved oxygen and Phosphate-phosphorus the dry season mean values were higher than wet season mean values

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