1Department of Zoology, Nehru Gram Bharati (Deemed to be University), Prayagraj, Uttar Pradesh
2Kalash Research and Welfare Society, Prayagraj-211002, Uttar Pradesh
3Krishi Vigyan Kendra, West Kameng, Dirang, 790 101, Arunachal Pradesh
4Department of Zoology, Kulbhashkar Ashram Post Graduate College, Prayagraj, Uttar Pradesh
*Corresponding Author's Email: Vipin_misra_81@yahoo.comvkmisrafish2020@gmail.com
Online published on 4 March, 2021.
Labeo rohita forms the most prestigious culturable fishery with highly preferred by consumers in India and Bangladesh. The fish samples of L. rohita were collected monthly during September 2018 to August 2019 in the Ganga River at Prayagraj, Uttar Pradesh. The age composition varied from 0+ to 11+ yr. This result demonstrated that the peak of length attained in 1st year of L. rohita life and their growth increment was 34.6 cm and moderate in the subsequent years. The minimum growth increment was observed in 11th year of the life with 0.7 cm. The growth increments in L. rohita was recorded as 18.6 cm, 13.9 cm, 9.5 cm, 6.2 cm, 4.0 cm, 3.7 cm, 2.3 cm, 1.9 cm and 1.8 cm for 2+ to 10+ age classes, respectively. The slow growth increment was observed in second year of the life cycle. L. rohita is fully matured in second year of the life cycle.
Age, Growth increment, Ganga river Labeo rohita, Stock
