The book deals with the varitaion in nutritional values of different carnivorous fish species. Nutritional values of three locally available carnivorous fish species viz. Mystus seenghala, Channa morulius and Wallao attu, were determined during different seasons of the year. There were considerable varitions in main nutritional parameters specifically lipids, protiens, moisture contents and minerals. Nutritional parameters observed were on lower side in Winter than in Summer possibly low to non feed intake during this part of the year.