International Journal of Fisheries and Aquatic Studies
2019, Vol. 7, Issue 6, Part D
Water quality status of a stream receiving fish pond discharge using physicochemical indicators in lake Victoria catchment, Kenya
Author(s): Jonathan Masaba, Barasa Wangila and Henry Lung’ayia
Abstract: This study assessed the water quality of a stream receiving discharge from Tilapia and catfish fish ponds using some physicochemical parameters as key indicators. Measurements were done both in the field and in the laboratory using portable multi-parameter meter and standard methods by APHA (1998). Systematic sampling design was applied. Significant differences were noted among the parameters in the sampling sites up-stream, in the ponds and downstream. Temperature, Phosphate-Phosphorus, Total dissolved solids, Turbidity, Ammonia-Nitrogen, had higher values in the ponds and Sampling site 4 downstream (
p˂0.05). Spatial variations that were within acceptable water quality standards in aquaculture, corresponding with changes caused by inflow from fish ponds, were observed.
Related Graphics: Click here for more related graphics:
Fig. 1: Box plot for variation in Ammonia-N (μgl
-1) values in Sasala Stream during the sampling period (March to August 2016)
Fig. 2: Box plot for variation in mean Phosphate-Phosphorus (µgl
-1) values in Sasala Stream during the sampling period (March to August 2016)
Fig. 3: Box plot for variation in turbidity values in Sasala Stream during the sampling period (March to August 2016)
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How to cite this article:
Jonathan Masaba, Barasa Wangila, Henry Lung’ayia. Water quality status of a stream receiving fish pond discharge using physicochemical indicators in lake Victoria catchment, Kenya. Int J Fish Aquat Stud 2019;7(6):260-267.
