The authors wish to express their sincere gratitude to Dr. P.C. Choudhury, CTA, FAO/UNDP project BGD/87/045, for his advice and guidance. The authors are grateful to Prof. Abu Tweb A. Ahmed, Senior Technical Adviser and Dr. M.N. Kutty, Senior Training Expert of FAO/UNDP Project BGD/87/045, for their valuable comments and suggestions in preparing this paper. Thanks are also extended to Mr. A.K. Ataur Rahman, Director, Department of Fisheries (DoF), and other staffs for providing facilities in conducting the culture trials. Special thanks are due to Prof. Abu Tweb A. Ahmed for designing and editing this paper.
