Amita Dagaonkar, Man Mohan Prakash, Nagesh Dagaonkar, Second Order Polynomial Curve Fitting for Length-Weight Relationship of Cirrhina mrigala from Munj Sagar Talab Dhar, Madhya Pradesh, India, Journal of Fisheries International, Volume 9,Issue 1, 2014, Pages 1-4, ISSN 1817-3381, jfish.2014.1.4, (https://makhillpublications.co/view-article.php?doi=jfish.2014.1.4) Abstract: The Cirrhina mrigala the Munj Sagar Talab Dhar was studied for its weight-length relationship for the period of Nov. 2006 to Oct. 2008. Length-Weight Relationship (LWR) is useful in Cirrhina mrigala was 2.869. Statistical method such as co-relation, smoothing of data, regression and cluster analysis and polynomial curve fitting are helpful in predicting and planning of the ecosystem. The second order polynomial was found to be a best fit for LWR in present study. Keywords: Cirrhina mrigala;second order polynomial;allometery coefficient;constant of proportionality;length-weight relationship;India