Technical contribution Length–weight relationships of two cyprinid fish species, Crossocheilus latius (Hamilton, 1822) and Garra gotyla gotyla (Gray, 1830) from the Ganga River Basin, India By N. K. Sharma 1 , J. I. Mir 2 , A. K. Dobriyal 3 and R. Singh 1 1 Department of Zoology, Badshahithaul, Tehri Campus, Hemwati Nandan Bahuguna Garhwal University, Tehri Garhwal, Uttarakhand, India; 2 Directorate of Coldwater Fisheries Research, Bhimtal, Uttarakhand, India; 3 Ecology Laboratory, Department of Zoology, H.N.B. Garhwal University Campus, Pauri Garhwal, Uttarakhand, India Summary This study provides length–weight relationship (LWR) infor- mation for two fish species (family Cyprinidae), Crossocheilus latius (Hamilton, 1822) and Garra gotyla gotyla (Gray, 1830), from a tributary of the Ganga River Basin, India. Both species had no previous LWR estimates as per Fishbase 2014. Introduction Crossocheilus latius (Hamilton, 1822) and Garra gotyla gotyla (Gray, 1830) are two important benthopelagic cyprinid spe- cies of India, distributed throughout Asia including India, Pakistan, Bangladesh, Myanmar, China, Bhutan and Nepal (Talwar and Jhingran, 1991). This study provides the first published reference of length–weight relationships for these two species from the Ganga River Basin in India. Materials and methods A total of 73 specimens of the two species were collected using cast nets and gill nets in the Alaknanda River (Ganga Basin tributary) at Srinagar (30°13 0 16″N; 78°48 0 34″E) Garh- wal in India, between September 2012 and November 2013. Identification of fishes was done following Talwar and Jhin- gran (1991). Prior to regression analysis of log BW on log TL, log–log plots of length and weight values were per- formed for visual inspection of outliers (Froese, 2006). The parameters a and b were estimated by linear regression: log (W) = log (a) + b log (L). Statistics were performed using the SPSS package version 16.0. Results Estimated parameters and descriptive statistics of the LWRs of Crossocheilus latius and Garra gotyla are given in Table 1. Discussion No LWRs for either species were available in FishBase (Fro- ese and Pauly, 2014). The value of parameter b was 2.98 for G. gotyla gotyla and 3.01 for C. latius, which are slightly outside the expected range given in FishBase (Froese et al., 2013); this may be because of the narrow length ranges and low number of specimens of these two species. As per the data available in FishBase (2014), reported herein are the new maximum total lengths for Garra gotyla gotyla (17.2 cm) and Crossocheilus latius (15.2 cm). In con- Table 1 Descriptive statistics and parameters of LWR for two Cyprinid fish species, Crossocheilus latius and Garra gotyla gotyla, Ganga River basin, India Species N Total length (cm) Total weight (g) Maximum fish length (cm) Regression parameters 95% Cl of a 95% Cl of b r 2 Min Max Min Max a* b Crossocheilus latius (Hamilton, 1822) 1 39 6.7 15.2 4.12 29.8 12.5 (TL) 0.0150 3.01 0.0095–0.0180 2.863–3.180 0.988 Garra gotyla gotyla (Gray, 1830) 1 34 8.2 17.2 22.4 69.7 14.5 (TL) 0.0176 2.98 0.0141–0.0215 2.844–3.120 0.979 N, sample size; a and b, intercept and slope of length–weight relationship; CL, confidence limits; r 2 , coefficient of determination; *Anti-log a. 1 Bold numbers indicate new maximum total length (cm) not yet recorded in 2014 FishBase Database. U.S. Copyright Clearance Centre Code Statement: 0175-8659/2015/3106–1161$15.00/0 J. Appl. Ichthyol. 31 (2015), 1161–1162 © 2015 Blackwell Verlag GmbH ISSN 0175–8659 Received: April 11, 2014 Accepted: January 10, 2015 doi: 10.1111/jai.12835 Applied Ichthyology Journal of