Author(s): Mst. Masuma Khatun, Md. Abu Sayed Jewel, Md. Abdur Razzaq Joadder and Mst. Samsad Khatun

Abstract: The present study was carried out in four carp polyculture ponds situated in two districts of Rajshahi division in the northern part of Bangladesh. Low water level, short term culture period and comparatively high temperature are the crucial features about the northern region because some of these areas are highly and some are slightly drought prone barind area. The corresponding study was conducted due to uncover the present conditions of pond based carp polyculture in those regions and also to address the problems that are faced by the rural farmers. A well defined and understandable questionnaire was made to collect data from the farmers through interview method. After the primary data collection, secondary information was used to figure out the water quality parameters and the economical sector. Among the four studied ponds two ponds were leased and rest of them were personal and it became a significant factor for the reduction of the profit level. The water quality parameters like temperature, turbidity, P^H, dissolved oxygen and alkalinity were found to be in range those are needed for fishes normal growth. In some cases temperature, turbidity and P^H were slightly fluctuated but could not make significant difference. The economical calculation of the culture ponds were positive but could be improved by implementing proper improvement plan.

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