Author(s): Peya Basak and Badsha Fahad

Abstract: The principle goal of the current investigation is to determine different water quality parameters of Jamuna river, which is flowing through Tangail district of Bangladesh as one of the most influencial rivers. To collect the water samples, three sampling sites were selected (Gobindashi, Kuthiboira, Bherua) and the research was conducted throughout the year of 2019 maintaining two months of intervals. These areas were selected due to the usage of water for drinking, domestic purposes, irrigation, dredging and immense sailing of motorized boats. Water samples were collected from 8 am to 12 pm and analyzed for water quality parameters such as temperature, transparency, pH, dissolved oxygen, total alkalinity, ammonia-nitrogen, phosphate-phosphorus, chlorophyll-a. The mean values of these parameters were compared with the standards set by FAO and WHO for analyzing the suitability of river water for drinking and aquaculture purposes. The sample analysis revealed that the river water was turbid and slightly alkaline. Also, pH, dissolved oxygen and ammonia were in suitable range throughout the inquiry. From correlation matrix, it was also observed that chlorophyll-a had a relationship with pH and ammonia-nitrogen. However, from this year-round survey, it can be concluded that further research is necessary for better and sustainable fish production. For accurate exploitation of aquatic resources such investigations of water quality is indispensable.

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