No abstract

W ater pollution has a negative impact on both human and aquatic organisms, therefore water quality is a major concern around the world (Tortajada and Biswas, 2018;Edokpayi et al., 2020). Aquaculture is a net consumer of water and necessitates a large quantity and high quality supply. In fish production, irrigation, and drinking water, water quality is critical (Daniel and Elliot, 2021). Anthropogenic activities (agriculture, mining, and factory discharge) and natural processes (interaction between animals, plants, and the environment) usually have an impact on surface water quality

This study aimed to asses’ water quality parameters of Guder River for aquaculture uses. In this study the part of this river was demarcated into three streams (upper, middle and down). Five sites were selected from each stream. The water sample was collected at the depth of 10-15 cm in dry and rainy seasons into plastic bottles from each site of three streams for laboratorial analysis. The water sample was immediately analyzed by using titration method for water quality parameters like CO2, Chloride and alkalinity while water turbidity, temperature, water pH and Dissolved oxygen was taken onsite by direct measurements. Nitrite and ammonia were determined by using easy test kit. The result showed that alkalinity was high (66.3±39.1mg/L) at downstream and lowest(58±40mg/L) at middle stream. Concentration of CO2 is high (14±3.6mg/L) at the upper. The highest (28.7±2.6 mg/L) concentration of chloride was measured at downstream. pH value was ranged between 5.89-7.33 and the water temperature 23.4-26.2℃. The concentration of nitrite and ammonia were 0.01-0.04mg/L and 0.03-0.05mg/L respectively. The result showed that concentration of free carbon dioxide was significantly(P0.05). Generally, even though concentration of studied parameter varies within different streams along the river basins they are within the range of fish production.