Comparative Assessment of Water Quality Parameters and Fish Productivity in Maintained and Non-maintained Pond Systems in Karimganj District, Assam, India

Abstract

Environmental factors directly influence the growth and survival of fishes and the quality of the water, in which they are cultured, is an important environmental factor in this regard. A study was conducted in the Alekargul and Tikarpara village (Badarpur sub-division) of Sreebhumi (earlier Karimganj) district, Assam to investigate some physicochemical parameters of waters of fisheries and non-maintained ponds present in those villages. The water quality parameters such as pH, temperature, dissolved oxygen, biological oxygen demand, and alkalinity were analyzed. The study revealed that there is significant variation in some of the water properties which pose a challenge for good productivity of fishes. It is found that the water temperature varies from 280C-320C and it is suitable for fish culture. DO vary between 4-9 mg/l. Mean pH values vary between 6.0 and 7.5 and total alkalinity varies between 80-200 ppm. BOD was between 3-9mg/l. This study highlights the scope for utilization of the water resources in the study areas by introducing proper management practices.