Ontogeny in Feeding Behaviour of Chocolate Mahseer, Neolissocheilus hexagonolepis in Captive Environment


  • ICAR-Coldwater Fisheries Research, Nainital, Uttarakhand, 263 136, India


The paper embodies to determine the sequential pattern of feeding behaviour of chocolate mahseer in pond condition. The diet composition of different developmental stages of Neolissochilus hexagonolepis during fry, fingerling and juvenile were determined based on the analysis of 98 specimens (17 fries, 43 fingerlings and 38 juveniles), collected from the pond environment of Mahseer Hatchery Complex of ICAR- DCFR, Bhimtal. Zooplanktons were the most dominant prey category (%F = 129.38, %N = 45.73) in fry, while phytoplankton's were the most dominant prey items in fingerling (%F = 139.59, %N = 63.67) and juvenile (%F = 233.88, %N = 70.84). The results of the study revealed that fry and juvenile seems to have a higher feeding activity in relation to fingerling and the diet of the fish varies with different stages of development. Hence, the fry are carni-omnivore while fingerlings and juveniles are herbi - omnivore.


Neolissochilus hexagonolepis, Feeding Behavior, Ontogeny, Vacuity Coefficient.

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Al-Hussaini, A.H. (1949) The anatomy and histology of the alimentary tract of the plankton feeder, Atherina forskali. Rupp. J. Morp., 80, 251-286.

Alikhuni, K.H. and Rao, S.N. (1951) On the bionomics, development and growth of a cauvery carp, Labeo kontius. Jerdon Rec. Indian Mus. 49, 157-174.

Ayyappan, S., Raizada, S. and Reddy, A.K. (2001) Captive breeding and culture of new species of Aquaculture. Captive breeding for aquaculture and fish germplasm conservation. NBFGR - NATP, 3, 1-20.

Das, S.M. and Moitra, S.K. (1958) On the feeding types of fishes and the variation in the alimentary canal in relation to food, J. Icthyol., 10, 29-40.

Das, S.M. and Moitra, S.K. (1956) Studies on the feeding types of fishes and variations in the alimentary canal in relation to food. J. Ichthyol., 10, 29-40.

Das, S.M. and Nath, S. (1965) The comparative anatomy of the alimentary tract and its modification in relation to the food and feeding habits in some fishes of Jammu Province, India. Ibid., 4, 63-78.

Dasgupta, M. (1988a) A study on the food and feedinghabits of the Copper Mahseer Acrossochilus hexagonolepis (McClld) Indian J. Fish. 35, 92-98.

Dasgupta, M. (1988) Biometry of the copper mahseer Acrossochilus hexagonolepis (McClld) from the North Eastern India. Nova Serie. 1, 361-374.

Dasgupta, M. (1988b) Fecundity of Acrossochilus hexagonolepis (McClld) from Garo hills Meghalaya.

Uttarpradesh. J. Zoology. 8, 159-167.

Dasgupta, M. (1988c) Length - Weight relationship and condition of the Copper Mahseer Acrossochilus hexagonolepis (McClld). Matsya, 14, 79-91.

Dasgupta, M. (1989) Biometry of the copper mahseer A. hexagonolepis (McClelland) from the North- Eastern India. Arq. Mus. Roc, 1, 361-374.

De Silva, S.S. (1973) Food and feeding habits of the herringClupea harengus and the Sprat C. sprattus in inshore waters of the west coast of Scotland. Mar. Biol., 20, 282-290.

Desai, V.R. (1970) Studies on the fisheries and biology of Tor tor (Ham.) from river Narmada. J. Inland Fish. Soc. India. 2, 101-112.

Edmondson, W.T. (1959) Freshwater Biology, 2nd edition. John wiley and Sons. Inc. New York, 1248.

Girgis, S. (1952) On the anatomy and histology of the alimentary tract of herbivorous bottom feeding Cyprinidae fish, Labeo horie (Cuv.). J. Morph.90, 317-362.

Hardy, A.C. (1924) The herring in relation to its marine environment Part I. The food and feeding habits of the herring with special references to the east coast of England, Fish. Invest., London Ser., 2, 1-53.

Hyslop, E.J. (1980) Stomach content analysis: a review of methods and their applications. J. Fish Biol., 17, 411-429.

Jhingran, V.G. (1975) Fish and Fisheries of India Hindustan Publishing Corporation, New Delhi, India.

Kishore, B., Bhatt, J.P., Rawat, V.S. and Nautiyal, P. (1998) Variations in food and feeding habit of the Himalayan mahseer- Tor putitora (Ham.) inhabiting the Ganga river system in Garhwal region. Indian J. Fish. 45, 113-118.

La Mesa, G., La Mesa, M. and Tomassetti, P. (2007) Feeding habits of the Madeira rockfish Scorpaena maderensis from central Mediterranean Sea. Marine Biol., 150, 1313-1329.

Laskar, B.A., Das, D.N. and Tyagi, B.C. (2009) Growth performance of the Neolissochilus hexagonolepis (McClld) in pond system in Arunachal Pradesh. Indian J. Fish. 56, 55-59.

Lima-Junior S.E. and Goitein R. (2001) A new method for the analysis of fish stomach contents. Acta scientiarum, 23, 421-424.

Molinero, A. and Flos, R. (1992) Influence of season on the feeding habits of the common sole Solea solea. Marine Biol., 113, 499-507.

Nath, P. and Dey, S.C. (2000) Fish and fisheries of North Eastern India (Arunachal Pradesh), Narmdra Publishing House, Delhi. 217.

Pedersen, J. (1999) Diet comparision between pelagic and demersal whiting in the North Sea. Journal of Fish Biology, 55, 1096-1113.

Pillay, T.V.R. (1952) A critique of the methods of study of food of fishes, J. Zool. Soc. India. 4, 185-200.

Rai, A.K. and Swar, B.D. (1989) Katle, Acrossochilus hexagonolepis (McClld), A cold water cyprinid of Nepal. FAO Fisheries Rome, 405, 95-99.

Sanwal, S., Sarma, D. and Singh, N.O. (2010) Effect of stage and seasonal differences on length-weight relationship and condition factor of Chocolate mahseer (Neolissochilus hexagonolepis). J. Inland Fishery Soc. India. 42, 52-56.

Sanwal, S. (2011) Culture and growth studies on Chocolate mahseer (Neolissochilus hexagonolepis)

in pond environment of Kumaun Uttarakhand. Ph.D. Thesis, Kumaun University, Nainital.

Sara, G. and Sara, R. (2007) Feeding habits and trophic levels of bluefin tuna Thunnus thynnus of different size classes in the Mediterrenean Sea. J. Appl. Icthyology, 23, 122-127.

Sarma, D., Sanwal, S., Haldar, R. S., Das, P. and Mahanta,P.C. (2010) Development of culture and breeding strategies for mahseer (Tor putitora and Neolissochilus hexagonolepis), Coldwater Fisheries Management, 61-72.

Sarma, D. and Bhuyan, R.N. (2007) Chocolate mahseer (Neolissochilus hexagonolepis): Icon of Meghalaya water. Fishing chimes, 26, 116-11.

Sinha, G.M. and Moitra, S.K. (1976) Studies on the morpho-histology of the alimentary canal of freshwater fishes of India. Part I. The alimentary canal of young Cirrhinus reba (Ham.) with a comparison with that of the juvenile in relation to food. Vest. Cs. Spol. Zool., 40, 221-231.

Watanabe, H., Kubodera, T. and Kawahara, S. (2006) Summer feeding habits of the Pacific pomfret Brama japonica in the transitional and subarcticwaters of the central North Pacific. Journal of Fish Biology, 68, 1436-1450. doi: 101111/j.1095-8649.2006.01027x.


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