author(s)
Ritesh Chandrvanshi, Rakesh Uraon, Niranjan Sarang and HK Vardia

abstract
This study aimed to estimate the length-weight relationship and characterized the condition factor of Labeo rohita and Cirrhinus mrigala is one of the most abundant and economically important species in sutiapat reservoir. The Sutiapat reservoir is a medium irrigation reservoir which is located in the Kabirdham district of Chhattisgarh. The present study describes the length-weight relationship and condition factor of L. rohita and C. mrigala to determine the growth pattern. The fish sampled range between total length 38.30 cm to 62.00 cm and total weight 850.00 gm to 3000.00 gm for L. rohita and C. mrigala from 36.50 cm. to 48.00 cm. in total length and 800.00 gm to 1250.00 gm in total weight. The correlation coefficient ‘r’ was found to be significant and observed to be 0.96 and 0.94 in L. rohita and C. mrigala respectively. The experimental fish ranged the length-weight relationship was calculated based on a sample collected during the study period revealed a strong linear relationship between total length and weight. The value of exponent was observed to be 3.11 for C. mrigala that revealed positive allometric growth and 3.04 for L. rohita that revealed isometric growth. The mean values of computed condition factor for all specimen of L. rohita was 2.12 and C. mrigala was 1.91 which indicated that good health condition of the L. rohita and C. mrigala in Sutiapat reservoir situated in kabirdham district in Chhattisgarh.