Polyculture of prawn with carps makes the ecological balance of the pond water, preventing the formation of massive algae blooms (Cohen et al. 1983) and at the same time increase the total production. Prawn polyculture with carps in ponds is
Brood stock and breeding management of fin fish hatcheries of Rajshahi district
Hatchery is one of the main sources of fry for fish culture and about 98% fry of the country is produced by the hatcheries (Amin, 2002). It seems that the establishment of new hatcheries is playing an active role in
Essential components of finfish hatcheries of Rajshahi district
Rajshahi is one of the richest districts of Bangladesh in respect of its vast, divers and unique fisheries resources. There are 9 upazillas in Rajshahi district. Total pond area of Rajshahi district is 7,729 ha which is 2.53% of total