International Journal of Scientific & Engineering Research, Volume 5, Issue 2, February-2014 567 ISSN 2229-5518 IJSER © 2014 http://www.ijser.org Length weight relationship and condition factor of Tor putitora from Jhajjar stream Bipu Khajuria, Seema Langer, Rahul Sharma Abstract - Length weight relationship of Tor putitora was studied from Jhajjar stream, a tributary of river Chenab. A total of 60 specimens were collected from March, 2012 to Feb, 2013. Total length of the specimens ranged from 9.2 cm to 18 cm. Multiple regression analysis was done by using SPSS software to compute the degree of relationship between length and weight and exhibited highly significant correlation (p<0.001). The values of length weight relationship according to formula was observed to be Log W = -1.899+2.922 Log TL, where b = 2.922 showing isometric growth pattern and coefficient of correlation R 2 = 0.7953. The condition factor also varied month wise. Index Terms – Condition factor, Regression, Significance ——————————  —————————— INTRODUCTION Tor putitora the golden mahseer is the most important fish of cyprinid fish group of south Asian continent. It is regarded as sport fish by anglers, because of its big size, fighting properties and as an excellent game fish [1] Different fishes grow with different rates depending upon their genetic makeup, food resources available and the environment conditions in which they live and grow. One of the methods for the estimation of the growth of a fish is by way of studying its length and weight parameters. Length and weight are two basic components in the species biology at individual and population level. Information on length – weight relationship has been used to predict weight from length during yield assessment. • Bipu Khajuria Research Scholar, Department of Zoology, University of Jammu. Email: khajuriabipu@gmail.com • Seema Langer, Associate Professor, Department of Zoology, Jammu University Email: langerseema@yahoo.co.in • Rahul Sharma, Research Scholar, Department of Statistics, Jammu University. The length weight relationship of Tor sp. has been reported by different researchers from different water bodies of India as well outside India[2-10]. The relationship also provides an index of well being of fish population [11] and a comparison of life history parameters of populations residing in different geo-climatic conditions [12]. The condition factor [13] is an organism level response to factors such as nutritional status, organo-somatic indices and serves as an indicator of the well being of individual organism as it integrates many levels of organismal processes. A decrease in condition factor is considered a reflection of depletion of energy reserves because these indices are positively related to muscle and liver energy content [14]. The condition factor is a quantitative parameter of well being state of fish and reflects recent feeding condition as well as its reproductive status. MATERIAL AND METHOD The present study was carried out at Jhajjar stream in District Jammu (J&K), India. Sixty fish samples of Tor putitora were collected with a length range of 9.2 – 18 cm and weight range of 9.9 – 60 gm with the help of cast net. The fishes were killed on the spot and preserved in 10 % formalin and brought to laboratory for study purpose. The samples were weighed by using electric balance up to 0.01 gm by removing debris and excess of water, whereas body length was carefully measured by using scale and divider. IJSER