author(s)
VK Balai, LL Sharma and NC Ujjania

abstract
A study on morphometric relationship of Indian major carps (Catla catla, Labeo rohita and Cirrhinus mrigala) was conducted on the fish specimens collected form commercial landing center of Lake Jaisamand. The morphometric measurements (Total length, Standard length, Forked length, Head length, Snout length, Eye diameter, Pre-dorsal length, Pre-pectoral length, Pre-pelvic length, Pre-anal length, Height of dorsal fin, Anal fin length, Body depth, Caudal depth and Caudal length) and body weight were recorded. The descriptive statistical parameters and correlation coefficient (r) were analysis with independent variable (total length) and dependent variable (other morphometric parameters). The result shows that morphometric parameters are highly correlated to total length except Snout length to total length. The regression coefficient (b) was less than 3.0 with total length and other morphometric that indicate the negative allometric growth of these parameters compared to total length whereas in weight with total length (WT-TL) it was shows negative allometric growth (2.600) in catla, positive allometric growth (3.160) in rohu and isometric growth (3.019) in mrigal. The study depicts that growth of fishes is satisfactory and aquatic environment of Jaisamand Lake is conducive for fishes.