PHYSICOCHEMICAL PROFILE AND BENTHOS OF RIVER GIRI UP AND DOWNSTREAM GIRI BARRAGE IN RENUKA, SIRMOUR (HIMACHAL PRADESH)

Dhyal Singh; Rayees Ahmed; Sawan Gupta; Madhu Bartwal; Mamta Joshi; M.S. Bhandari

Volume : V, Issue : III, March - 2016

PHYSICOCHEMICAL PROFILE AND BENTHOS OF RIVER GIRI UP AND DOWNSTREAM GIRI BARRAGE IN RENUKA, SIRMOUR (HIMACHAL PRADESH)

Dhyal Singh, Rayees Ahmed, Sawan Gupta, Madhu Bartwal, Mamta Joshi, M. S. Bhandari

Abstract :

<p>&nbsp;Himachal Pradesh is drained by various rivers. Himachal Pradesh provides water to both the Indus and Ganges basins. The drainage systems of the region are the Chandra Bhaga or the Chenab, the Ravi, the Beas, the Sutlej and the Yamuna. The Yamuna has its origin in Yamunotri in Uttarkashi district, Uttarakhand. Its total catchment area in Himachal Pradesh is 2,320 km&sup2;. Its tributaries are the Tons, the Giri and the Bata. Giri river is a perennial river of Sirmour district of Himachal Pradesh state. Present attempt has made to study the physicochemical parameters, qualitative and quantitative base of benthos of River Giri up and down stream Giri Barrage in Renuka, Sirmour, H.P. The average water temperature ranged from 7.75&plusmn;0.960C (minimum) to 17.00&plusmn;1.830C (maximum) The mean variation of dissolved oxygen was observed 7.25&plusmn;0.96 mg l&ndash;l (minimum) and 12.00&plusmn;1.63 mg l&ndash;l. Moreover, a total of 12 genera of benthos were collected and identified which includes 9 families, 5 orders and 1 class, respectively. The benthos community was formed by Trichoptera, Ephemeroptera, Diptera, Coleoptera and Hemiptera.</p>