International Journal of Fisheries and Aquatic Studies
2016, Vol. 4, Issue 2, Part E
Assessment of fecundity, gonadosomatic index and hepatosomatic index of snow trout, Schizothorax plagiostomus in river Lidder, from Kashmir Himalaya, IndiaAuthor(s):
Muddasir Jan, Imtiaz AhmedAbstract:
The present study was carried out to assess fecundity (F), gonadosomatic index (GSI) and hepatosomatic index (HSI) of snow trout, Schizothorax plagiostomus in river Lidder originating from Kashmir Himalaya of District Anantnag, India. The fish samples used in the present study was within the range of 25.5cm to 40.33cm in total length and weight ranging from 250g to 580g and the sampling duration was from July, 2013 to June, 2014. For the estimation of fecundity, 40 mature female specimens were selected. The mean value of fecundity was (12964.62 ± 7385.54) with a mean total length of (34.48cm ± 4.69) and mean body weight (372.48g ± 173.82). The maximum fecundity 32136.06 was calculated for a fish measuring 39cm in total length, 540g in weight, while minimum fecundity 4110 was observed in fish having a total length of 27.5cm and weight 280g. The relative fecundity to weight ranged from 9.696 for a fish with total length 30cm and weight 230g to 56.704 for a fish with total length 38cm and weight 460g.The relative fecundity to length ranged from 64.52 for a fish with total length 30cm and weight 230g to 824 for a fish with total length 39cm and weight 540g. The mean GSI value of female fish fluctuated between minimum 1.059 ± 0.62 in August to maximum 14.95 ± 2.69 in May, while the GSI values of male fish also fluctuated with minimum 4.131 0.47 to maximum 14.837 2.97 in July and March, respectively. Similarly the HSI values of both male and female fish also produced variable results with respect to different months where minimum HSI value (0.622 ± 0.002) was reported in the month of May and maximum value (2.436 ± 0.594) was observed in male fish during the month of November. While the female fish showed its minimum HSI (1.027 ± 0.131) in the month of May and reached its maximum (2.163 2± 0.285) in November. The statistical relationship of fecundity with other parameters such as total length (TL), total weight (TW), ovary length (OL) and ovary weight (OW) were calculated. The relationships were found to be highly significant (p<0.05) between fecundity and fish length (r=0.835, p<0.05), fecundity and fish weight (r=0.803, p<0.05), fecundity and ovary weight (r=0.796, p<0.05) and fecundity and ovary length (r=0.836, p<0.05), respectively.Pages: 370-375 | 860 Views 49 DownloadsDownload Full Article:
How to cite this article:
Muddasir Jan, Imtiaz Ahmed. Assessment of fecundity, gonadosomatic index and hepatosomatic index of snow trout, Schizothorax plagiostomus in river Lidder, from Kashmir Himalaya, India. International Journal of Fisheries and Aquatic Studies. 2016; 4(2): 370-375.