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Assessment of Water Quality Parameters for Aquaculture uses: The Case of Guder River, Main Tributaries of Blue Nile, Ethiopia

Assessment of Water Quality Parameters for Aquaculture uses: The Case of Guder River, Main Tributaries of Blue Nile, Ethiopia

Shambel Boki Dabi

Department of Animal Science, Ambo University, Ambo, Ethiopia.

 
*Correspondence | Shambel Boki Dabi, Department of Animal Science, Ambo University, Ambo, Ethiopia; Email; dshambelboki@yahoo.com

ABSTRACT

The goal of this study was to evaluate the Guder River’s water quality parameters for aquaculture purposes. In this study, parts of Guder river were divided into three streams (upper, middle, and down). From each stream, five sites were chosen. During the dry and rainy seasons, water samples were collected at a depth of 10 to 15 cm in plastic bottles from each site of three streams for laboratory study. Water quality parameters such as CO2, Chloride, and alkalinity were instantly assessed using the titration method, while water turbidity, temperature, water pH, and dissolved oxygen were measured directly on site. A simple test kit was used to evaluate nitrite and ammonia levels. The result revealed a high level of alkalinity (66.3±39. 1mg. L-1) at downstream and lowest concentration (58±40mg.L-1) was found in the middle stream. The upper stream has a high CO2 concentration (14±3.6mg.L-1) while the middle stream has a low CO2 concentration (9.4±0.77mg.L-1). The maximum chloride content (28.7±2.6 mg. L-1) was found at downstream, whereas the lowest (22.7±4.1mg.L-1) was found in the upper stream. The pH of the water was measured to be between 5.89 and 7.33, with a temperature of 23.4 to 26.2°C. Nitrite and ammonia concentrations were 0.01 to 0.04mg.L-1 and 0.03 to 0.05mg.L-1respectively. The results revealed that the site had a significant impact on the concentration of free carbon dioxide (P<0.05). However, no significant changes in alkalinity and chloride were found in any of the streams (P>0.05). Generally, even though the concentrations of the analyzed parameters vary among streams and river basins, they are generally within the range of fish production.

 

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Sarhad Journal of Agriculture

September

Vol. 38, Iss. 3, Pages 759-1159

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